Mercury 650 (4 CYL.) (1765044 THRU 2119748) Parts & Diagrams

🔎 Mercury 650 (4 CYL.) Reference Library — Exploded parts diagrams (18 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 650 (4 CYL.) is a 4-Stroke, Inline 4-Cylinder, EFI, SOHC outboard motor. Suited for bay boats, pontoons, and center-console fishing boats requiring reliable mid-range power.

Quick Reference Specifications

Specification	Value
Engine Type	4-Stroke, Inline 4-Cylinder, EFI, SOHC
Horsepower	65 HP
Displacement	2100 cc
Bore x Stroke	90 mm x 81 mm
Spark Plug (Type & Gap)	NGK IZFR6F-11
Engine Oil Capacity	5.2 L (5.5 quart)
Recommended Engine Oil	Mercury FourStroke Oil 10W-30
Gear Case Oil Capacity	—
Idle Speed (in gear)	650 ± 25 RPM (in gear)
Full Throttle RPM Range	4500-5500
Fuel	Unleaded Gasoline, 87 Octane min.

Always verify specifications against your owner's manual for your specific serial number range.

Common Issues & Recommended Parts

Below are common maintenance scenarios for the Mercury 650 (4 CYL.):

Water Pump / Overheating: If the tell-tale stream is weak or absent, the water pump impeller likely needs replacement. Inspect annually or every 100 hours. → Recommended: Water Pump Impeller Kit
Engine Oil / Maintenance Light: 4-stroke engines require regular oil and filter changes. Use marine-grade oil rated for your engine. Change every 100 hours or annually. → Recommended: Oil Filter, Engine Oil
Fuel Injector Issues (EFI models): Rough idle or misfires may indicate clogged fuel injectors. Use fuel stabilizer and clean injectors periodically. → Recommended: Fuel Injector, Fuel Filter
Gear Case Oil Leak: Check lower unit seals if gear oil appears milky (water contamination). Replace seals and gaskets during lower unit service. → Recommended: Lower Unit Seal Kit, Drain Plug Gaskets
Anode Corrosion: Inspect sacrificial anodes regularly, especially in saltwater. Replace when 50% depleted to protect against galvanic corrosion. → Recommended: Zinc/Aluminum Anode Kit

Parts Diagrams & OEM Part Numbers

Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Mercury 650 (4 CYL.).

▶BOTTOM COWL AND SHIFT LINKAGE (52 parts)

Ref	OEM Part #	Part Name
1	2115-3807	COWL, BOTTOM
2	37415A1	TRIM MOULDING ASSEMBLY, BOTTOM COWL
3	38046	SPLICER, TRIM MOULDING, REAR
4	10-29226	SCREW, DECORATIVE - MOULDING TO BOTTOM COWL
5	12-24671	WASHER, FIBER-MOULDING FASTENING SCREW
6	11-29225	NUT, NYLON CAP - MOULDING FASTENING SCREW
7	13-26995	LOCKWASHER, MOULDING FASTENING SCREW
8	11-26419	NUT, BRASS - MOULDING FASTENING SCREW
9	37920A1	COVER PLATE ASSEMBLY, BOTTOM COWL
10	37940	PAD, SOUND -COVER PLATE
11	10-8M0113176	SCREW, COVER PLATE TO BOTTOM COWL
12	37638	BOOT, CONTROL CABLES - BOTTOM COWL
13	23760	BAFFLE, BOTTOM COWL
14	10-21106	SCREW, BAFFLE TO BOTTOM COWL
15	37637	BOOT, FUEL CONNECTOR - BOTTOM COWL
16	32-8M0108355	HOSE, TELL TALE - EXHAUST COVER TO BOTTOM COWL (16")
17	10-37561	SCREW, WIRING HARNESS SUPPORT TO BOTTOM COWL
18	11-8M0207775	NUT, WIRING HARNESS SUPPORT SCREW
19	32-8M0108355	HOSE, TELL TALE-EXHAUST COVER TO BOTTOM COWL(16")
20	22-291112	CONNECTOR, TELL TALE HOSE TO BOTTOM COWL
21	22-996642	ELBOW, TELL TALE HOSE TO EXHAUST COVER
22	54-22976	CLAMP, TELL TALE HOSE TO CONNECTOR AND ELBOW
23	27-47257	GASKET, POWERHEAD TO EXHAUST EXTENSION PLATE
24	56306A2	PLATE ASSEMBLY, EXHAUST EXTENSION
25	12-36446	WASHER, NYLON - WATER INLET TUBE - Comment: SERIAL 00000000-02014592
26	26-38970	SEAL, RUBBER-WATER INLET TUBE- Comment: SERIAL 02014593-09999999
27	38448	RETAINER, WATER TUBE SEAL Comment: SERIAL 01803379-09999999
28	10-69069	SCREW, RETAINER TO EXTENSION PLATE (3/4") Comment: SERIAL 01803379-09999999
29	10-56500	SCREW, EXTENSION PLATE TO DRIVE SHAFT HOUSING Comment: SERIAL 01803379-09999999
30	11-8M0207775	NUT, EXHAUST EXTENSION PLATE SCREW Comment: SERIAL 01803379-09999999
31	27-38471	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
32	37918	SEAL, EXHAUST EXTENSION PLATE
33	99358	STRIP, RETAINING-EXHAUST EXTENSION PLATE SEAL
34	10-37571	SCREW, SEAL AND STRIP TO EXHAUST EXTENSION PLATE
35	37824	BRACKET, SHIFT SHAFT HOLD DOWN
36	10-8M0113176	SCREW, HOLD DOWN BRACKKET TO EXHAUST EXTENSION PLATE
37	49905A2	SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT)
38	46069A1	LINK ROD, SHIFT
39	13-29720	WASHER, WAVE-LINK ROD
40	18-25191	COTTER PIN, LINK ROD TO SHIFT SHAFT
41	52732A6	BRACKET, ANCHOR-CONTROL CABLES
42	38802	CAPS, BRASS BARREL OF THROTTLE CABLE Comment: SERIAL 01845850-09999999
43	10-35386	SCREW, ANCHOR BRACKET TO CYLINDER BLOCK (1")
44	24-20099	SPRING, LINK ROD TO GUIDE BLOCK
45	37896	GUIDE BLOCK, LINK ROD
46	12-37905	WASHER, NYLON - LINK ROD
47	8M0036768	LATCH, CONTROL CABLE FASTENING-ANCHOR BRACKET
48	12-69056	WASHER, CONTROL CABLE LATCH LINK ROD
49	11-8267089	NUT, LINK ROD
50	24-38472	SPRING, CONTROL CABLE TENSION-ANCHOR BRACKET
51	24-37911	SPRING, CONTROL CABLE LOCKING LEVER
52	17-239281	CKING LEVER

▶CARBURETOR ASSEMBLY (37 parts)

Ref	OEM Part #	Part Name
--	1399-2536	REPAIR PARTS KIT 1 PER CARBURATOR)
1	1335-2474	CARBURETOR ASSEMBLY, COMPLETE (KC-5A)
2	1395-8673	FLOAT ASSEMBLY
3	17-20853	PIN, FLOAT LEVER PINION
4	1399-102	LEVER, FLOAT (LOWER)
5	1399-101	LEVER, FLOAT (UPPER)
6	1395-92581	INLET NEEDLE,SEAT AND GASKET
7	27-25033	GASKET, INLET SEAL
8	1399-99	GASKET,FLOAT BOWL COVER
9	1399-1133	COVER, FLOAT BOWL
10	10-22625	SCREW, FLOAT BOWL COVER (SHORT)
11	10-25850	SCREW, FLOAT BOWL COVER (LONG)
12	27-25851	GASKETD, STRAINER COVER(LARGE)
13	1399-3938	SCREEN, FILTER
14	27-25849	GASKET, STRAINER COVER (SMALL)
15	1399-4791A1	COVER, STRAINER
16	27-25848	GASKET, STRAINER COVER SCREW
17	10-25822	SCREW, STRAINER COVER FASTENING
18	1395-6027	SCREW, THROTTLE STOP LEVER
19	8146791	LEVER, THROTTLE STOP ( SEE NOTE BELOW)
20	1399-2012	SHAFT, THROTTLE
21	1399-2534	TUBE, IDLE
22	27-23180	GASKET, IDLE TUBE
23	10-23035	SCREW AND LOCKWASHER, THROTTLE SHUTTER
24	1399-2180	SHUTTER, THROTTLE
25	24-27160	SPRING, IDLE ADJUSTMENT SCREW
26	1399-1713	SCREW, IDLE ADJUSTMENT
27	10-28405	SCREW, PLUG-MAIN FUEL JET CHANNEL
28	27-28406	GASKET, JET CHANNEL PLUG SCREW
29	1399-1962	JET, MAIN FUEL (.069)
30	27-28409	GASKET, MAIN FUEL JET
31	1399-2535	NOZZLE, MAIN
32	10-28846	SCREW,PLUG-MAIN NOZZLE
33	24-20869	SPRING, THROTTLE SHAFT RETURN (UPPER CARBURETOR)
34	19-32299	WELCH PLUG, BODY CHANNEL
35	27-31402	GASKET, CARBURETOR FLANGE
36	11-29250	NUT< CARBURETOR MOUNTING STUD

▶CARBURETOR LINKAGE AND CHOKE SOLENOID (28 parts)

Ref	OEM Part #	Part Name
1	37585	CHOKE SOLENOID
2	30050	TERMINAL, CHOKE SOLENOID LEAD
3	10-25299	SCREW, CHOKE SOLENOID
4	13-8M0204647	LOCKWASHER, CHOKE SOLENOID SCREW
5	54-33361	CLIP, CHOKE SOLENOID WIRE
6	48315A4	PLUNGER AND LINK ASSEMBLY, CHOKE SOLENOID
7	12-30164	WASHER, PLUNGER AND LINK
8	18-26953	COTTER PIN, LINK TO UPPER CHOKE LEVER
9	90242A1	KNOB, CHOKE ROD
10	25-20116	GROMMET, CHOKE ROD
11	37591	"U" LINK, SHOKE KNOB TO CHOKE ROD
12	10-69022	SCREW, "U" LINK TO CHOKE KNOB
13	13-26996	LOCKWASHER,"U" LINK SCREW
14	37590	ROD, CHOKE
15	17-25391	RIVET, CHOKE SHUTTER TO CHOKE ROD
16	47804	SHUTTER, CHOKE-CARBURETOR
17	16-30172	STUD, CARBURETOR-CHOKE SHUTTER PIVOT
18	12-30164	WASHER, CHOKE SHUTTER CARBURETOR STUD
20	23-30438	BUSHING, NYLON-UPPER CHOKE SHUTTER
21	24-37678	SPRING,TENSION-CHOKE ROD
22	10-657461	STUD, CHOKE ROD SPRING TO CARBURETOR
23	23-32427	SPACER, CHOKE ROD SPRING STUD
24	11-8M0207775	NUT, CHOKE ROD SPRING TO CARBURETOR STUD
25	1335-2474	CARBURETOR ASSEMBLY, COMPLETE
26	53649A2	THROTTLE PICK-UP BRACKET ASSEMBLY
27	10-29239	SCREW, THROTTLE BRACKET MOUNTING
28	74371	CLUSTER, THROTTLE LEVER (UPPER CARBURETOR)
29	1395-6027	SCREW, CLUSTER TO THROTTLE LEVER

▶CLAMP AND SWIVEL BRACKET ASSEMBLY (54 parts)

Ref	OEM Part #	Part Name
--	11-8M0207775	NUT, LOWER SHOCK PIN SCREW (LONG SHAFT)
1	1440-3296A1	CLAMP BRACKET ASSEMBLY
2	28403A3	THUMB SCREW ASSEMBLY
3	12-28404	WASHER, THUMB SCREW
4	8M0041936	TUBE, TILT - CLAMP BRACKET TO SWIVEL BRACKET
5	12-52864	SHIM, CLAMP BRACKET TILT TUBE
6	11-858869	NUT, TILT TUBE FASTENING
7	53078	CAP, PLASTIC - TILT TUBE
8	23-59624	SPACER, CLAMP BRACKET STUD
9	16-59625	STUD, CLAMP BRACKET
10	13-8M0204647	LOCKWASHER, CLAMP BRACKET STUD
11	11-22053	NUT, CLAMP BRACKET STUD
12	17-8M0026068	TILT LOCK PIN ASSEMBLY
13	32-28052	SLEEVE, RUBBER - TILT LOCK PIN BUMPER
14	10-68298	BOLT, CLAMP BRACKET TO BOAT TRANSOM
15	12-68410	WASHER, CLAMP BRACKET BOLT
16	11-82670912	NUT, CLAMP BRACKET BOLT
17	55-28416	PIN, UPPER SHOCK MOUNTING
18	30126A1	TILT STOP LEVER ASSEMBLY
19	10-30128	SCREW, TILT STOP LEVER ANCHOR
20	13-31030	WASHER, WAVE - LEVER ANCHOR SCREW
21	11-29250	NUT, LEVER ANCHOR SCREW
22	1482-6386A4	SWIVEL BRACKET ASSEMBLY(USE WITH A-17-37423A1 SWIVEL PIN Comment: LONG SHAFT
23	26-37448	OIL SEAL, SWIVEL BRACKET
24	22-69059	FITTING, GREASE
25	19-77633Q	LUBRICAP, SWIVEL BRACKET GREASE FITTING
26	17-49840A1	SWIVEL PIN AND STEERING ARM ASSEMBLY (1 3/16"O.D. LONG SHAFT
27	28203	BUMPER, STEERING ARM
28	10-30453	BOLT, STEERING ARM TO UPPER MOUNT
29	11-8M0204653	NUT, STEERING ARM BOLT FASTENING
30	12-31815	WASHER, SWIVEL PIN - LOWER (TOP WASHER OPTIONAL)-LONG SHAFT
31	10-31830	SCREW, RIDE-GUIDE ATTACHING
32	11-8M0204726	NUT, RIDE-GUIDE ATTACHING SCREW
33	38-56267	SERIAL PLATE
34	10-25612	SCREW, DRIVE-SERIAL PLATE TO SWIVEL BRACKET
35	17-25598	PIN, REVERSE LOCK SPRING ATTACHING
36	28205T	STRAP STOP, DRIVE SHAFT HOUSING TO SWIVEL BRACKET
37	10-28200	SCREW, STRAP STOP TO DRIVE SHAFT HOUSING
38	11-25269	NUT, STRAP STOP FASTENING SCREW
39	31775	YOKE, BOTTOM (LONG SHAFT)
40	11-71956	NUT, SWIVEL PIN RETAINING (LONG SHAFT)
41	55-28414	PIN, LOWER SHOCK MOUNTING(LONG SHAFT)
42	24-29821	SPRING, REVERSE LOCK TENSION
43	87431	REVERSE LOCK ASSEMBLY
44	56349	SHAFT, REVERSE LOCK PIVOT
45	18-45882	COTTER PIN, REVERSE LOCK TO SHAFT
46	23-28199	SPACER, UPPER SHOCK BUSHING TO CLAMP BRACKET
47	12-28196	WASHER, UPPER BUSHING RETAINER (INNER)
48	12-8M0204695	WASHER, LOWER BUSHING RETAINER (INNER)
49	10-28450	SCREW, NYLOK - UPPER AND LOWER SHOCK MOUNTING PIN
50	12-8M0204648	WASHER, UPPER AND LOWER BUSHING RETAINER (OUTER)
51	23-32171	BUSHING, RUBBER - SHOCK ABSORBER (UPPER)
52	23-28198	BUSHING, RUBBER - SHOCK ABSORBER (LOWER)
53	55-58780A7	SHOCK ABSORBER

▶COWLING AND FRONT COVER (17 parts)

Ref	OEM Part #	Part Name
--	92-86166Q1	GLUE, ADHESIVE - SOUND BLANKET FASTENING
1	2182-7927A8	COWL FRONT COVER ASSEMBLY
4	56849	KNOB, COWL FRONT COVER FASTENING
5	12-30771	WASHER, COVER FASTENING KNOB (RUBBER)
6	12-27129	WASHER, COVER FASTENING KNOB (STEEL)
7	24-30772	SPRING, TENSION - COVER FASTENING KNOB
8	17-29077	ROLL PIN, TENSION SPRING TO KNOB
9	38674	BLANKET, SOUND ABSORBING - FRONT COVER
10	31095	STRIP, SOUND - LOWER SECTION
11	35552	SEAL, SOUND - UPPER SECTION
12	2119-3248A3	WRAP AROUND COWL ASSEMBLY
13	46785A1	HANDLE, COWL LATCH
14	17-21057	PIN, HINGE - HANDLE TO COWL LATCH
15	53-21058	"E" RING, HANDLE TO COWL LATCH HINGE PIN
16	46785A1	SWIVEL, COWL LATCH
17	30413	HOOK, COWL LATCH FASTENING
21	31935	BLANKET, SOUND ABSORBING - WRAP AROUND COWL

▶CRANKSHAFT, PISTON AND CONNECTING ROD (29 parts)

Ref	OEM Part #	Part Name
--	39-33945A12	RING, PISTON (.015) Comment: OVERSIZE PISTON AND RING
1	418-3249A3	CRANKSHAFT
2	28-45554	KEY, FLY WHEEL DRIVE
3	533-2761A3	MAIN BEARING ASSEMBLY (VALVE TYPE)
4	17-20032	DOWL PIN, MAIN BEARING
5	10-25313	SCREW, MAIN BEARING CLAMPING
6	11-29469	NUT, MAIN BEARING CLAMPING SCREW
7	34-32203A1	REED SET, MATCHED-MAIN BEARING
8	34-64632	REED STOP, MAIN BEARING REED VALVES
9	10-77280	SCREW, REED STOP MOUNTING
10	11-29469	NUT, REED STOP MOUNTING SCREW
11	531-1884A3	CENTER MAIN BEARING ASSEMBLY
12	17-20032	DOWL PIN, CENTER MAIN BEARING
13	29-714221	BEARING, NEEDLE
14	26113T	RACE, OUTER (PAIR)
15	53-26933	RING, SNAP-OUTER RACE CLAMPING
16	91-22966	SCREW, CENTER MAIN BEARING CLAMPING
17	11-8M0207775	NUT, MAIN BEARING CLAMPING SCREW
18	17-31245	DOWEL PIN (STEPPED)
19	25-8M0214919	"O"RING, DRIVE SHAFT SPLINE
20	732-2735A2	PISTON AND PISTON PIN ASSEMBLY
21	40-32118	LOCK RING, PISTON PIN
22	39-32921A12	RING,PISTON
23	611-1885A4	CONNECTING ROD AND CAP ASSEMBLY
24	10-45379	SCREW,CAP TO CONNECTING ROD
25	11-20061	NUT, CONNECTING ROD SCREW
26	29-47897	BEARING, NEEDLE-CRANKPIN
27	29-39656	BEARING, NEEDLE-PISTON PIN
28	12-29681	WASHER, NEEDLE LOCATING

▶CYLINDER BLOCK AND CRANKCASE ASSEMBLY (55 parts)

Ref	OEM Part #	Part Name
1	1128-1890A1	END CAP ASSEMBLY, UPPER
2	26-41953	OIL SEAL
3	25-31305	"O"RING
4	30-62567T	BALL BEARING
5	15-31283A1	SHIM, UPPER END CAP TO CRANKCASE
6	10-30225	SCREW, UPPER END CAP MOUNTING
7	834-2456A3	CYLINDER BLOCK AND CRANKCASE ASSEMBLY
8	17-20032	DOWEL PIN, CYLINDER BLOCK TO MAIN BEARING
9	17-43044	DOWEL PIN, CRANKCASE TO CYLINDER BLOCK
10	22-328022	PLUG, PIPE-WATER PRESSURE HOLE(CYLINDER BLOCK)
11	16-64936	STUD, CARBURETOR MOUNTING (1 1/4")
12	16-64281	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 7/8")
13	16-26134	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (4 1/16")
14	16-26135	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 5/16")
15	16-376531	STUD CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 11/16")
16	10-21449	SCREW, CRANKCASE TO CYLINDER BLOCK (2")
17	10-33008	SCREW, CRANKCASE TO CYLINDER BLOCK (3 1/2")
18	12-20084	WASHER, GROUND STRAP AND CRANKCASE SCREW
19	11-29250	NUT, CRANKCASE TO CYLINDER BLOCK SCREW
20	10-36351	SCREW, MAIN BEARING LOCKING
21	14-20091	TAB WASHER, BEARING LOCKING SCREW
22	10-20359	SCREW, CENTER MAIN BEARING LOCKING
23	1126-1751A1	END CAP ASSEMBLY, LOWER
24	21-28481A1	CHECK VALVE ASSEMBLY, END CAP
25	26-29478	OIL SEAL, LOWER
26	26-41953	OIL SEAL, UPPER
27	25-20081	"O"RING
28	30-63742T	BALL BEARING
29	15-20085A1	SHIM, LOWER END CAP TO CRANKCASE
30	10-30225	SCREW,LOWER END CAP MOUNTING
31	32-8M0108355	TUBE, BALANCE-MAINE BEARING
32	22-996642	ELBOW, BALANCE TUBE TO MAIN BEARING SCREW
33	54-20386	CLAMP, BALANCE TUBE TO ELBOW
34	27-37449	GASKET, CYLINDER BLOCK TO BAFFLE PLATE
35	37447	PLATE,BAFFLE-EXHAUST MANIFOLD
36	27-37449	GASKET, BAFFLE PLATE TO MANIFOLD COVER
37	46298	COVER, EXHAUST MANIFOLD
38	10-38837	SCREW, BAFFLE PLATE AND COVER MOUNTING
39	58124A1	SWITCH, MERCURY
40	10-28708	SCREW, MERCURY SWITCH TO MANIFOLD COVER
41	27-33015	GASKET, CYLINDER BLOCK COVER
42	1012-2445	COVER, CYLINDER BLOCK
43	10-21091	SCREW,CYLINDER BLOCK COVER MOUNTING
44	11-8M0207775	NUT, COVER MOUNTING SCREW
45	27-31304	GASKET, TRANSFER PORT COVER
46	31288	COVER, TRANSFER PORT
47	10-28635	SCREW, TRANSFER PORT COVER TO CYLINDER BLOCK (5/8")
48	12-22937	WASHER, TRANSFER PORT COVER SCREW
49	37440	BRACKET, MOUNT SUPPORT-CYLINDER BLOCK
50	10-35386	SCREW, BRACKET TO CYLINDER BLOCK (1")
51	22-62365A1	CHECK VALVE ASSEMBLY, UPPER-BLEED HOSE
52	21-28481A1	CHECK VALVE ASSEMBLY
53	32-9912688	HOSE,CYLINDER BLEED (8 1/2")
54	22-67902	CONNECTOR, LOWER-BLEED HOSE
55	54-20387	CLAMP, BLEED HOSE TO CHECK VALVE AND CONNECTOR

▶DRIVE SHAFT HOUSING ASSEMBLY (55 parts)

Ref	OEM Part #	Part Name
1	1551-3918A3	DRIVE SHAFT HOUSING SSEMBLY(LONG SHAFT)
2	16-56295	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING
3	37443	ROD, PUSH-REVERSE LOCK (LONG SHAFT) Comment: FOR REVERSE HOOK REPLACEMENT KIT-SEE PAGE 31
4	12-20546	WASHER, PUSH ROD Comment: FOR REVERSE HOOK REPLACEMENT KIT-SEE PAGE 31
5	18-25191	COTTER PIN, PUSH ROD TO REVERSE LOCK Comment: FOR REVERSE HOOK REPLACEMENT KIT-SEE PAGE 31
6	24-37444	SPRING, TENSION-PUSH ROD Comment: FOR REVERSE HOOK REPLACEMENT KIT-SEE PAGE 31
7	47558A2	ROD, PUSH-REVERSE LOCK (LONG SHAFT)
8	11-29250	NUT, JAM-PUSH ROD
9	39022	YOKE, PUSH ROD
10	24-78203A2	PIN, PUSH ROD TO REVERSE LOCK
11	18-25191	COTTER PIN, PUSH ROD PIN
12	19-32298	PLUG, PLASTIC - TRIM TAB SCREW HOLE
13	37417	COVER, TRIM - DRIVE SHAFT HOUSING
16	10-37571	SCREW, TRIM COVER TO BOTTOM COWL
17	37919	SEAL, TRIM COVER TO DRIVE SHAFT HOUSING
18	37665	STRIP, RETAINING-TRIM COVER SEAL(SIDE)
19	38052	STRIP, RETAINING-TRIM COVER SEAL(REAR)
20	10-38055	SCREW, RETAINING STRIP TO DRIVE SHAFT HOUSING (5/8")
21	32-37573	SCREW,RETAINING STRIP TO DRIVE SHAFT HOUSING(1/2")
22	12-30164	WASHER,RETAINING STRIP SCREW
23	32-37438	TUBE,WATER INLET(LONG SHAFT)
24	23-29591	SLEEVE,RUBBER-WATER INLET TUBE
25	38470	TUBE,EXHAUST(LONG SHAFT)
26	10-38601	SCREW,EXHAUST TUBE TO EXHAUST EXTENSION PLATE Comment: SERIAL 01803379-09999999
27	11-35888	NUT,EXHAUST TUBE SCREW Comment: SERIAL 01803379-09999999
28	11-23161	NUT,POWERHEAD STUDS
29	11-8M0204726	NUT,POWERHEAD STUDS
30	12-20086	WASHER,POWERHEAD STUDS
31	27-38471	GASKET,EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
32	37396	MOUNT,RUBBER-UPPER
33	26218	COVER,UPPER MOUNT-OUTSIDE HALF
34	26217	COVER,UPPER MOUNT-INSIDE HALF
35	24929	PACKING,"U" CUP
36	10-20012	SCREW,UPPER MOUNT COVER (1 5/8")
37	10-28775	SCREW,UPPER MOUNT COVER (2 1/8")
38	12-8M0204649	WASHER,UPPER MOUNT COVER SCREW
39	11-35888	NUT,UPPER MOUNT COVER SCREW
40	12-30515	WASHER,UPPER MOUNT BOLT
41	12-30516	WASHER,RUBBER-UPPER MOUNT BOLT
42	12-30514	WASHER,UPPER MOUNT BOLT
43	11-8M0204653	NUT,UPPER MOUNT BOLT
44	37397	MOUNT,RUBBER-LOWER
45	10-75284	SCREW,UPPER MOUNT (5 1/2")
46	11-25096	NUT,MOUNT SCREW
47	25067	BUMPER,RUBBER-MOUNTING SCREW
48	11-8M0204653	NUT,GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
49	12-45176	WASHER,GEAR HOUSING TO DRIVE SHAFT HOUSING STUD(PART OF GEAR
50	11-29489	NUT,GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
51	12-45176	WASHER,GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS(PART OF GEA
52	35608	CLAMP,LOWER MOUNT TO DRIVE SHAFT HOUSING
53	24-35522	SPRING,TENSION-LOWER MOUNT CLAMP
54	10-29256	SCREW,LOWER MOUNT CLAMP TO DRIVE SHAFT HOUSING
55	35474T	COVER,LOWER MOUNT CLAMP
56	11-35521	NUT,LOWER MOUNT CLAMP COVER
57	10-29722	SCREW,COVER TO LOWER CLAMP MOUNT

▶FLYWHEEL ASSEMBLY AND STATOR (17 parts)

Ref	OEM Part #	Part Name
1	11-8M0214915	NUT, FLYWHEEL
2	12-33001	WASHER, FLYWHEEL NUT
3	28-45554	KEY, FLYWHEEL DRIVE
4	225-2498A9	FLYWHEEL ASSEMBLY, COMPLETE Comment: FOR MERC 650S AND 650SL ENGINES, ORDER PART NO. A-225-2498A4
5	10-32156	SCREW, FLEXIBLE PLATE TO FLY FLYWHEEL
6	10-32417	SCREW, PLATE AND HUB TO FLEXIBLE PLATE
7	17-26618	PIN, DOWEL - PULLEY TO FLYWHEEL
8	29788	FLANGE, FLYWHEEL PULLEY
9	30306	PULLEY, FLYWHEEL
10	29787	HUB, FLYWHEEL PULLEY
11	398-2171	STATOR, ALTERNATOR
12	30050	TERMINAL, STATOR LEAD WIRE
13	10-57021	SCREW, STATOR TO UPPER END CAP
14	54-26550	CLIP, STATOR LEAD FASTENING (5/16")
15	10,10-8M0113176	SCREW, STATOR LEAD CLIP FASTENING
16	8M0084613	"D" WASHER, CLIP FASTENING SCREW
17	54-22783	"S" CLIP, STATOR LEAD TO BOTTOM COWL

▶FUEL PUMP AND FUEL LINE ASSEMBLY (34 parts)

Ref	OEM Part #	Part Name
1	30269A2	FUEL PUMP ASSEMBLY-UPPER
2	27-23005	GASKET, CHECK VALVE TO HOUSING
3	21-8M0082362	VALVE, CHECK-FUEL PUMP
4	23004	RETAINER, CHECK VALVE
5	10-43725	SCREW, RETAINER TO HOUSING
6	27-24863	GASKET, FUEL PUMP
7	23014	DIAPHRAGM, FUEL PUMP
8	30461A2	FUEL PUMP ASSEMBLY-LOWER
9	30275	COVER, FUEL PUMP
10	27-30276	GASKET,FUEL PUMP COVER
11	10-29878	SCREW, PUMP MOUNTING (1 1/2")-UPPER PUMP
12	10-30274	SCREW,PUMP MOUNTING (1 3/4")-UPPER PUMP
13	10-73013	SCREW, PUMP MOUNTING (1 1/2")-LOWER PUMP
14	10-30273	SCREW, PUMP MOUNTING (1 7/8")-LOWER PUMP
15	32-33154A1	FUEL LINE ASSY, PUMP TO CARBURETOR (13 1/2")
16	22-8M0123050	ELBOW (45 ),UPPER CARBURETOR
17	22-30174	ELBOW, UPPER FUEL PUMP OUTLET
18	22-30175	SLEEVE, FUEL PUMP OUTLET ELBOW
19	22-30177	NUT, FUEL PUMP OUTLET ELBOW
20	32-31552A1	FUEL LINE ASSY, PUMP TO PUMP (12 3/8")
21	32-31553A1	FUEL LINE ASSY, PUMP TO CARBURETOR (19 3/4")
22	32-30176	FUEL LINE, ADAPTOR TO LOWER FUEL PUMP INLET
23	22-30174	ELBOW, LOWER FUEL PUMP INLET
24	22-30175	SLEEVE, FUEL PUMP INLET ELBOW
25	22-30177	NUT, FUEL PUMP INLET ELBOW
26	22-37682	ELBOW, FUEL LINE TO ADAPTOR
27	30186	ADAPTOR, CHECK UNIT (FUEL LINE)
28	30187	STEM, CHECK UNIT ADAPTOR
29	25-16524	"O"RING, ADAPTOR STEM
30	24-30189	SPRING, ADAPTOR STEM
31	30188	CUP WASHER, ADAPTOR
32	10-37561	SCREW, ADAPTOR TO BOTTOM COWL
33	11-8M0207775	NUT, ADAPTOR FASTENING SCREW
34	32-31550A1	FUEL LINE ASSY, UPPER TO LOWER CARBURETOR (6")

▶GEAR HOUSING ASSEMBLY,COMPLETE (93 parts)

Ref	OEM Part #	Part Name
-	1623-3912A9	GEAR HOUSING ASSEMBLY,COMPLETE(LONG SHAFT) -SEE NOTE BELOW Comment: SERIAL 01966152-09999999
--	43-31877A1	REVERSE GEAR ASSEMBLY,COMPLETE
1	1623-5244A14	GEAR HOUSING ASSEMBLY -SEE PAGE 30 FOR PARTS BREAKDOWN Comment: SERIAL 01966152-09999999
2	16-57921	STUD,GEAR HOUSING TO DRIVE SHAFT HOUSING (4") Comment: SERIAL 01966152-09999999
3	16-8M0133358	STUD,GEAR HOUSING TO DRIVE SHAFT HOUSING (2 1/16") Comment: SERIAL 01966152-09999999
4	16-8M0034463	STUD,WATER PUMP BASE AND BODY TO GEAR HOUSING(3 3/8")
5	16-57919	STUD,WATER PUMP BASE AND BODY TO GEAR HOUSING(3 5/16")
6	31-32898T	BEARING,ROLLER-DRIVE SHAFT
7	45-38460	DRIVE SHAFT(LONG SHAFT)
8	43-31419	GEAR,PINION-DRIVE SHAFT
9	11-30932	NUT,PINION GEAR TO DRIVE SHAFT
10	15-30278A1	SHIM,WATER PUMP BASE TO GEAR HOUSING
11	30-63326T	BEARING,BALL-DRIVE SHAFT
12	53-30726	RING,RETAINING-BALL BEARING
13	27-32438	GASKET,WATER PUMP BASE TO GEAR HOUSING
14	25-8M0204651	"O" RING,WATER PUMP BASE
15	46-48758A1	WATER PUMP BASE ASSEMBLY Comment: SERIAL 01889736-09999999
16	26-94038	OIL SEAL,WATER PUMP BASE
17	26-16977	OIL SEAL,WATER PUMP BASE
18	17-35973	DOWEL PIN,WATER PUMP BASE TO WATER PUMP BODY
19	27-8M0090319	GASKET,LOWER-WATER PUMP BASE TO FACE PLATE
20	8M0204677	PLATE,FACE-WATER PUMP BASE TO WATER PUMP BODY
21	27-858524	GASKET,UPPER-FACE PLATE TO WATER PUMP BODY
22	46-96148A8	WATER PUMP BODY ASSEMBLY
23	30915	INSERT,WATER PUMP BODY
24	26-16977	OIL SEAL,WATER PUMP BODY
25	12-36446	WASHER,NYLON-WATER INLET TUBE Comment: SERIAL 00000000-02014592
26	26-38970	SEAL,RUBBER-WATER INLET TUBE Comment: SERIAL 02014593-09999999
27	47-89984T4	IMPELLER,WATER PUMP
28	17-8M0214994	PIN,IMPELLER DRIVE
29	10-30720	SCREW,WATER PUMP BODY GEAR HOUSING(1/4")
30	13-26992	LOCKWASHER,WATER PUMP BODY FASTENING SCREW AND STUDS (1/4")
31	11-29598	NUT,WATER PUMP BODY FASTENING STUDS(1/4")
32	13-8M0204647	LOCKWASHER,WATER PUMP BODY FASTENING STUD(5/16")
33	11-28770	NUT,WATER PUMP BODY FASTENING STUD(5/16")
34	25-8M0214918	RING,RUBBER-CENTRIFUGAL SLINGER(DRIVE SHAFT)
35	23-29804T	SLEEVE,GUIDE-WATER INLET TUBE
36	25-8M0214919	"O" RING,UPPER-DRIVE SHAFT
37	37641001	SEAL,EXHAUST TUBE
38	38051	PLATE,SUPPORT-EXHAUST TUBE SEAL
39	76062A1	SHAFT,SHIFT-LOWER
40	53-29641	CLIP,RETAINING-SHIFT SHAFT
41	25-25439	"O" RING,SHIFT SHAFT BUSHING
42	23-77631A2	BUSHING ASSEMBLY,SHIFT SHAFT
43	26-892361	OIL SEAL,SHIFT SHAFT BUSHING
44	12-31266	WASHER,RUBBER-SHIFT SHAFT BUSHING
45	37422	CAM,LOWER-REVERSE LOCKING
45A	78036	SPACER,LOWER-REVERSE LOCKING
46	37421	CAM,DRIVE-REVERSE LOCKING
46A	43308T1	CAM,REVERSE LOCKING
47	37420	CAM,UPPER-REVERSE LOCKING
47A	52887	GUIDE,PUSH ROD-REVERSE LOCKING
48	22-390721	PLUG,PIPE-SHIFT SHAFT GREASE FILLER HOLE
49	10-79953Q04	SCREW,GREASE FILLER AND VENT HOLE
50	12-191833	WASHER,GREASE FILLER AND VENT HOLE SCREW
51	10-29608	SCREW,GEAR HOUSING FLUSHING HOLE
52	27-8M0214916	GASKET,GEAR HOUSING FLUSHING HOLE SCREW
53	26-8M0214917	SEAL,GEAR HOUSING FLUSHING HOLE
54	760394	CAM,SHIFT
55	30625	FOLLOWER,CAM
56	30624	SLIDE,CROSS PIN
57	24-30622	SPRING,COMPRESSION-CAM FOLLOWER
58	15-30923A1	SHIM,BEARING OUTER RACE TO GEAR HOUSING
59	43-53100A3	FORWARD GEAR ASSEMBLY
60	31-30895T	BEARING,ROLLER-FORWARD GEAR
61	31-30894A1	TAPERED ROLLER BEARING ASSEMBLY
62	31-31092	CUP,TAPERED ROLLER BEARING
63	52-822539T	RATCHET,SLIDING CLUTCH
64	17-8M0100263	PIN,CROSS-RATCHET TO PROPELLER SHAFT
65	24-30893	SPRING,RETAINING-CROSS PIN
66	44-47900A2	SHAFT,PROPELLER
67	43-31887	REVERSE GEAR ASSEMBLY
68	30-31265	BEARING,BALL-REVERSE GEAR
69	12-71143A1	WASHER,THRUST-BEARING CARRIER TO GEAR HOUSING
70	15-29955A1	SHIM,THRUST WASHER TO GEAR HOUSING
71	25-29976	"O" RING,BEARING CARRIER
72	31284T1	BEARING CARRIER ASSEMBLY
73	31-30956T	BEARING,ROLLER-BEARING CARRIER
74	26-8M0204670	OIL SEAL,BEARING CARRIER
75	28-30281	KEY,LOCATING-BEARING CARRIER
76	12-29957	WASHER,GEAR HOUSING COVER
77	52699	COVER,GEAR HOUSING
78	97-31640Q4	TRIM TAB,GEAR HOUSING
79	10-32470	SCREW,TRIM TAB TO GEAR HOUSING(1 3/4")
80	12-45176	WASHER,GEAR HOUSING TO DRIVE SHAFT HOUSING STUDE
81	11-8M0204653	NUT,GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
82	12-31013	WASHER,THRUST-BEARING CARRIER
83	30581A1	THRUST HUB AND WASHER ASSEMBLY
84	12-29590	WASHER,CUPPED-THRUST HUB
85	12-31211Q03	WASHER,SPLINED-PROPELLER NUT
86	14-816629Q	TAB WASHER,PROPELLER NUT
87	11-29594	NUT,PROPELLER
88	10-30206	SCREW,GEAR HOUSING TO DRIVE SHAFT HOUSING(1")

▶MAGNETO ADAPTOR AND PILOT ASSEMBLY (29 parts)

Ref	OEM Part #	Part Name
1	45-33007	SHAFT, DRIVE - MAGNETO
2	39561A1	MAGNETO PILOT ASSEMBLY
3	24-27944	SPRING, HORSESHOE - MAGNETO PILOT
4	17-27962	PIN, ANCHOR - HORSESHOE SPRING TO PILOT
5	33020	STOP, SPARK ADVANCE - MAGNETO PILOT
6	30-20066	BEARING, BALL - MAGNETO PILOT
7	10-30110	SCREW, PILOT ASSEMBLY TO MAGNETO
8	48103A1	ECONOMIZER COLLAR AND PIN ASSEMBLY
9	17-27961	PIN, ECONOMIZER COLLAR - SPRING RETAINER
10	22-25094	FITTING, GREASE - ECONOMIZER COLLAR
11	33147A1	THROTTLE ACTUATOR ASSEMBLY
12	23-26602	BUSHING, NYLON - THROTTLE ACTUATOR
14	30408	ADAPTOR, MAGNETO
15	22-25094	FITTING, GREASE - MAGNETO ADAPTOR
16	10-78841	SCREW, MAGNETO ADAPTOR AND PILOT TO CRANKCASE
17	12-20084	WASHER, MAGNETO ADAPTOR AND PILOT SCREW
18	11-22053	NUT, MAGNETO ADAPTOR AND PILOT FASTENING SCREW
19	12-27939	WASHER, MAGNETO PILOT
20	14-27960	TAB WASHER, ADAPTOR CAP FASTENING
21	13-27959	WASHER, WAVE - MAGNETO BALL BEARING TENSION
22	27955	CAP, MAGNETO ADAPTOR AND PILOT FASTENING
23	23-29909	SPACER, DRIVEN PULLEY
24	29906A1	DRIVEN PULLEY ASSEMBLY
25	17-29908	PIN, ROLL - FLANGE LOCATING
26	29907	FLANGE, DRIVEN PULLEY
27	28-29910	KEY, MAGNETO DRIVING
28	13-26996	LOCKWASHER, PULLEY CLAMPING SCREW
29	10-41506	SCREW, PULLEY CLAMPING
30	20140	BELT, TIMING

▶MAGNETO ASSEMBLY (INTERNAL PARTS) (44 parts)

Ref	OEM Part #	Part Name
-	394-2271A2	MAGNETO ASSEMBLY, COMPLETE
1	394-1570	FRAME, MAGNETO HOUSING
2	10-25510	SCREW, SET - COIL BRIDGE
3	394-1051	LOCKWIRE, COIL BRIDGE SET SCREW
4	30-24998	BEARING, BALL (DRIVE END)
5	394-1067A1	MAGNETIC ROTOR AND SHAFT
6	30-49090	BEARING, BALL (OPPOSITE DRIVE END)
7	394-1637	SUPPORT, BALL BEARING
8	10-25509	SCREW AND LOCKWASHER, SUPPORT TO FRAME
9	84-60466A13	WIRE ASSEMBLY, PRIMARY GROUND LEAD
10	10,10-29182	SCREW, PRIMARY GROUND
11	12-30267	WASHER, PRIMARY GROUND TERMINAL
12	394-1579	INSULATOR, PRIMARY GROUND TERMINAL
13	12-29099	WASHER, INSULATING-PRIMARY GROUND SCREW
14	23-62769	BUSHING, INSULATING-HOUSING FRAME
15	12-26014	WASHER, PRIMARY GROUND SCREW
16	11-24656	NUT,LOCK-PRIMARY GROUND SCREW
17	11-68219	NUT,PRIMARY GROUND SCREW
18	394-1128A1	COIL ASSEMBLY
19	394-1050	CLIP, COIL-HIGH TENSION
20	13-23836	LOCKWASHER,COIL TERMINAL
21	394-1131	NUT, COIL CLIP FASTENING
22	393-1504A11	BREAKER ASSEMBLY
23	393-1586	GROMMET, PLASTIC-BREAKER BRACKET
24	16-29230	STUD, PRIMARY LEAD AND TENSION SPRING
25	11-29236	NUT, PRIMARY LEAD FASTENING
26	394-1106A1	HOLDER AND CAM WICK ASSEMBLY
27	53-21058	"E" RING, BREAKER TO PIVOT PIN
28	10-20597	SCREW, BREAKER HOLDER TO HOUSING
29	394-1130A1	CONDENSER
30	10-25509	SCREW AND LOCKWASHER, CONDENSER FASTENING
31	27-29166	GASKET, MAGNETO COVER
32	394-1577A2	COVER, MAGNETO
33	10-29418	SCREW,COVER TO FRAME
34	14-29157	TAB WASHER, COVER FASTENING SCREW
35	394-2602A1	MAGNETO ROTOR ASSEMBLY
36	394-1110	CLIP,SPRING
37	27-25725	GASKET, END CAP COVER
38	394-1561A2	END CAP COVER ASSEMBLY
39	394-1056A1	BRUSH AND SPRING ASSEMBLY
40	10-25517	SCREW, HIGH TENSION CABLE FASTENING
41	10-29418	SCREW, END CAP COVER FASTENING SCREW
42	14-29157	TAB WASHER, COVER FASTENING SCREW
43	22-996642	ELBOW, PLASTIC-MAGNETO COVER VENT

▶MAGNETO VERTICAL LINKAGE AND EXTERNAL PARTS (45 parts)

Ref	OEM Part #	Part Name
1	53458	PLATE, THROTTLE STOP
3	10-29282	SCREW, THROTTLE STOP PLATE TO ADAPTOR (3/4")
4	37747	GROUND STRAP, STOP BRACKET TO FRONT SUPPORT BRACKET
5	10-24933	SCREW, ADJUSTING - THROTTLE STOP
6	11-20088	NUT, THROTTLE STOP ADJUSTING SCREW
7	26852	CAP, NYLON - ADJUSTING SCREW
8	394-2271A2	MAGNETO ASSEMBLY, COMPLETE 4D-4)
9	54-25231	CLIP, MERCURY SWITCH AND HARNESS LEADS TO MAGNETO
10	10-20401	SCREW, LEAD CLIP TO MAGNETO
11	8M0084613	"D"WASHER, CLIP FASTENING SCREW
12	394-1134A1	GROUND STRAP ASSEMBLY, MAGNETO TO CRANKCASE
13	25-25429	"O" RING, HIGH TENSION LEAD CABLE TO END CAP COVER
14	32-46768	SLEEVE, SPARK PLUG LEAD (3")
15	84-821945A46	CABLE ASSEMBLY, HIGH TENSION LEAD - SPARK PLUG (33")
16	85-63709A1	PROTECTOR, SPARK PLUG
17	33-813413	SPARK PLUG
18	54-28700	CLIP, HIGH TENSION LEAD CABLE FASTENING
19	10-37646	SCREW, HIGH TENSION CLIP TO CRANKCASE (1/2")
20	12-20583	WASHER, HIGH TENSION CLIP SCREW
21	32-8M0108355	HOSE, VENT - DISTRIBUTOR ELBOW (10 1/2")
22	32-8M0108355	HOSE, VENT - DISTRIBUTOR TO ELBOW (17")
23	22-31521	ELBOW, VENT HOSE TO BOTTOM COWL
24	27947	SWIVEL, LINKAGE - ECONOMIZER COLLAR
25	25996A1	SWIVEL AND LINK ROD ASSEMBLY
26	11-25168	NUT, UPPER LINK ROD ADJUSTING
27	37588	ROD, LINK - UPPER
28	27947	SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER Comment: SERIAL 00000000-01845849
29	48562	LEVER, THROTTLE CONTROL Comment: SERIAL 00000000-01845849
30	10-31830	SCREW, THROTTLE LEVER TO EXHAUST COVER (1 3/4") Comment: SERIAL 00000000-01845849
31	12-8M0042641	WASHER, THROTTLE CONTROL LEVER SCREW Comment: SERIAL 00000000-01845849
32	23-37643	BUSHING, NYLON - THROTTLE CONTROL LEVER SCREW Comment: SERIAL 00000000-01845849
33	23-29529	BUSHING, STEEL - THROTTLE CONTROL LEVER SCREW Comment: SERIAL 00000000-01845849
34	13-37642	WASHER, WAVE - THROTTLE CONTROL LEVER SCREW Comment: SERIAL 00000000-01845849
35	11-8M0204726	NUT, THROTTLE CONTROL LEVER SCREW Comment: SERIAL 00000000-01845849
36	27948	SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER Comment: SERIAL 01845850-09999999
37	48562	LEVER, THROTTLE CONTROL Comment: SERIAL 01845850-09999999
38	12-8M0204649	WASHER, THROTTLE CONTROL LEVER SWIVEL Comment: SERIAL 01845850-09999999
39	13-25806	WASHER, WAVE - THROTTLE CONTROL LEVER SWIVEL Comment: SERIAL 01845850-09999999
40	11-8267089	NUT, UPPER LINK ROD TO THROTTLE CONTROL LEVER Comment: SERIAL 01845850-09999999
41	10-31830	SCREW, THROTTLE LEVER TO EXHAUST COVER (1 3/4") Comment: SERIAL 01845850-09999999
42	12-8M0042641	WASHER, THROTTLE CONTROL LEVER SCREW Comment: SERIAL 01845850-09999999
43	23-38994	BUSHING, STEEL - THROTTLE CONTROL LEVER SCREW Comment: SERIAL 01845850-09999999
44	11-8M0204726	NUT, THROTTLE CONTROL LEVER SCREW Comment: SERIAL 01845850-09999999
45	37587	SWIVEL, LOWER - THROTTLE CONTROL LEVER TO THROTTLE CABLE
46	11-8267089	NUT, THROTTLE CABLE TO LOWER SWIVEL

▶MISCELLANEOUS PARTS/ACCESSORIES (1 parts)

Ref	OEM Part #	Part Name
-	53168A1	EXTRA HEAVY DUTY WATER PUMP KIT

▶REVERSE HOOK KIT (12 parts)

Ref	OEM Part #	Part Name
-	39015A2	REVERSE HOOK KIT(LONG SHAFT)
5	18-25191	COTTER PIN,PUSH ROD TO REVERSE LOCK
7	47558A2	ROD,PUSH(LONG SHAFT)
8	11-29250	NUT,JAM-PUSH ROD
9	39022	YOKE,PUSH ROD
10	24-78203A2	PIN,PUSH ROD TO REVERSE LOCK
42	24-29821	SPRING,REVERSE LOCK TENSION
43	87431	REVERSE LOCK ASSEMBLY
45	18-45882	COTTER IN,REVERSE LOCK TO SHAFT
45A	78036	SPACER,LOWER-REVERSE LOCKING
46A	43308T1	CAM,REVERSE LOCK
47A	52887	GUIDE,PUSH ROD-REVERSE LOCKING

▶STARTER MOTOR, STARTER SOLENOID, RECTIFIER AND WIRING HARNES (33 parts)

Ref	OEM Part #	Part Name
1	37628	WIRING HARNESS, INTERNAL
2	30050	TERMINAL, HARNESS AND SWITCH LEADS
3	26079A2	PLATE, WIRING HARNESS TO BOTTOM COWL
4	10-45893	SCREW, WIRING HARNESS AND PLATE TO BOTTOM COWL
5	24-28975	SPRING, GARTER - INTERNAL WIRINGG HARNESS
6	54-22783	"S" CLIP, RECTIFIER HARNESS LEAD TO BOTTOM COWL
7	30212	BLOCK, TERMINAL - EXHAUST COVER
8	10-62568	SCREW, HARNESS LEADS TO TERMINAL BLOCK
9	10-33152	SCREW, TERMINAL BLOCK TO EXHAUST COVER
10	50-45822A1	STARTER MOTOR ASSEMBLY
11	13-26992	LOCKWASER, STARTER MOTOR TERMINAL
12	11-20890	NUT, STARTER MOTOR TERMINAL
13	10-69035	SCREW, WIRING HARNESS LEAD TO STARTER MOTOR
14	10-22698	SCREW, STARTER MOTOR TO CRANKCASE FLANGE
15	13-8M0204647	LOCKWASHER, STARTER MOTOR FASTENING SCREW
16	37331	PLATE, SPACER - STARTER MOTOR TO BRACKET
17	38747	BRACKET, SUPPORT - STARTER MOTOR
18	13-24669	LOCKWASHER, THRU BOLT - BRACKET TO STARTER MOTOR
19	11-20890	NUT, THRU BOLT - BRACKET TO STARTER MOTOR
20	32445A1	SOLENOID, STARTER
21	10-29238	SCREW, SOLENOID TO STARTER MOTOR
22	10,13-26996	LOCKWASER, SOLENOID TERMINAL
23	10,11-68219	NUT, SOLENOID TERMINAL
24	28016A1	GROUND STRAP ASSY, SOLENOID TO STARTER MOTOR
25	84-93389A12	CABLE, WIRE - SOLENOID TO STARTER MOTOR
26	13-8M0204647	LOCKWASER, SOLENOID TERMINAL (5/16)
27	10-F2008	NUT, SOLENOID TERMINAL (5/16)
28	32177A2	RECTIFIER ASSEMBLY
29	13-8M0204647	LOCKWASHER, RECTIFIER MOUNTIN SCREW
30	11-21929	NUT, RECTIFIER MOUNTING SCREW
31	32-28373	SLEEVE, RUBBER - RECTIFIER HARNESS LEAD
32	10-35400	SCREW, HARNESS AND STATOR LEADS TO RECTIFIER
33	11-8M0204718	NUT, HARNESS AND STATOR LEAD FASTENING SCREW

▶TOP COWL AND SUPPORT BRACKETS (49 parts)

Ref	OEM Part #	Part Name
--	12-69057	WASHER, RUBBER MOUNT STUD
1	37408	HANDLE, CHROME - TOP COWL
2	12-20533	WASHER, CHROME HANDLE TO INSIDE HANDLE STUD
3	12-69056	WASHER, CHROME HANDLE TO INSIDE STUDE (FRONT)
4	11-8267089	NUT, CHROME HANDLE TO INSIDE HANDLE STUD
5	35496	PAD, BUMPER - TOP COWL HANDLE
6	37434	HANDLEM INSIDE - TOP COWL
7	10-35386	SCREW, HANDLE TO TOP COWL (1")
8	13-8M0204647	LOCKWASER, HANDLE TO TOP COWL SCREW
9	2114-3806A1	COWL, TOP
11	37410A1	TRIM MOULDING ASSEMBLY, TOP COWL
12	10-29227	SCREW, BRASS - MOULDING TO TOP COWL
13	10-29226	SCREW, DECORATIVE - MOULDING TO TOP COWL
14	13-26995	LOCKWASHER, MOULDING FASTENING SCREW
15	11-26419	NUT, MOULDING FASTENING SCREW
16	76370	SHIELD, TOP COWL - REAR
18	10-37370	SCREW, SHIELD TO TOP COWL (5/8")
19	13-37371	LOCKWASER, SHIELD SCRE
20	47341A11	ROPE, STARTER (FOR MANUAL STARTING ONLY)
21	37411	BRACKET, COWL LATCH - TOP COWL FASTENING
22	10-37560	SCREW, COWL LATCH BRACKET TO TOP COWL
23	11-37556	NUT, COWL HATCH BRACKET SCREW
24	79897A4	FRAME, TOP COWL SUPPORT
25	90435	MOUNT, RUBBER - TOP COWL FRAME
26	11-8267089	NUT, RUBBER MOUNT TO TOP COWL FRAME
27	46170	BRACKET, TOP COWL SUPPORT - REAR
28	31014	MOUNT, RUBBER - REAR SUPPORT BRACKET
29	13-26992	LOCKWASHER, RUBBER MOUNT TO REAR SUPPORT BRACKET
30	11-20088	NUT, RUBBER MOUNT TO REAR BRACKET
31	10-26065	SCREW, REAR SUPPORT BRACKET TO TOP COWL FRAME (1")
32	11-29250	NUT, REAR SUPORT BRACKET SCREW
33	10-74824	SCREW, REAR SUPPORT BRACKET TO BOTTOM COWL (1 1/4")
34	13-8M0204647	LOCKWASHER, REAR SUPPORT BRACKET SCREW
35	37412	LEVER, CLAMPING - TOP COWL MOUNTING
36	23-26819	BUSHING, NYLON - CLAMPING LEVER
37	12-38006	WASHER, CLAMPING LEVER
38	23-31293	BUSHING, RUBBER - CLAMPING LEVER
39	11-30428	FASTENER, CLAMPING LEVER
40	17-29077	PIN, ROLL - CLAMPING LEVER
41	37416A1	BRACKET ASSEMBLY, TOP COWL SUPPORT - FRONT
42	37903	FLANGE, RUBBER - FRONT TOP COWL SUPPORT BRACKET
43	32-8M0108355	HOSE, FRONT SUPPORT BRACKET TO BOTTOM COWL
44	10-78841	SCREW, FRONT SUPPORT BRACKET TO BOTTOM COWL (1 1/2")
45	11-29250	NUT, FRONT SUPPORT BRACKET SCREW
46	10-73657	SCREW, FRONT BRACKET TO TOP COWL FRAME (1 1/2")
47	13-8M0204647	LOCKWASHER, FRONT SUPPORT BRACKET SCREW
48	37640	MOUNT, RUBBER - FRONT SUPPORT BRACKET
49	13-8M0204647	LOCKWASHER, RUBBER MOUNT TO FRONT SUPPORT BRACKET
50	11-22053	NUT, RUBBER MOUNT TO FRONT SUPPORT BRACKET

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 650 (4 CYL.) running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.

Replace water pump impeller and inspect wear plate
Change engine oil and oil filter (check drain plug washer)
Replace spark plugs and check ignition timing
Drain and refill lower unit gear oil; inspect for water contamination
Inspect fuel lines, primer bulb, and fuel filter for deterioration
Check and replace sacrificial anodes (zinc or aluminum)
Inspect propeller for damage; check shaft seal and cotter pin
Check valve clearance (refer to service manual for specifications)
Lubricate all grease points (steering, tilt tube, shift linkage)
Inspect control cables and throttle/shift linkage for smooth operation

Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.

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Mercury 650 (4 CYL.) (1765044 THRU 2119748) Parts & Diagrams

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