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3.3
ENGINE
3
SPECIFICATIONS
Torque Specifications
Special Tools
Engine Fastener Torque Patterns
Tighten cylinder head, cylinder base, and crankcase fasteners in
3 steps following the sequence outlined.
TORQUE SPECIFICATIONS
Fastener Size EH50PLE
Ft. Lbs. (Nm)
Blind Plug (Oil
Pressure)
1/8 PT
(28tpi)
6.5-11 (9-15 Nm)
Camshaft Sprocket 6mm 5-6.5 (7-9 Nm)
Camshaft Chain
Tensioner Lever
6mm 5-6.5 (7-9 Nm)
Camshaft Chain
Tensioner
6mm 5-6.5 (7-9 Nm)
Camshaft Chain
Tensioner Cap
11mm 14-19 (20-25 Nm)
Carburetor Adaptor 8mm 12-14 (16-20 Nm)
Crankcase 8mm 14-15 (19-21 Nm)
Crankshaft Slotted Nut
(Cam Chain Drive
Sprocket)
28mm 35-51 (47-69 Nm)
Cylinder Base Bolts 10mm
6mm
45-49 (61-67 Nm)
6-8 (9-11 Nm)
Cylinder Head Bolts 11mm
6mm
Refer to Engine
Assembly for torque
procedure
Drive Clutch Bolt 7/16 - 20 40 (55 Nm)
Flywheel 16mm 58-72 (78-98 Nm)
Oil Delivery Pipe 12mm 11-15 (15-21 Nm)
Oil Drain Bolt
(Crankcase)
14mm 14-17 (19-23 Nm)
Oil Filter Pipe Fitting 20mm 36-43 (49-59 Nm)
Oil Hose Fitting 1/8 Pipe
Thread
6.5-11 (9-15 Nm)
Hard Metal Oil Line
Banjo Fitting
N/A 11-16 ft.lbs. (15-21
Nm)
Oil Pump 6mm 5-6.5 (7-9 Nm)
Oil Pump Case Screw 5mm 1.5-2 (2-3 Nm)
One Way Valve 11mm 14-19 (20-25 Nm)
Recoil Housing 6mm 5-6.5 (7-9 Nm)
Rocker Cover 6mm 7-8 (9-11 Nm)
Rocker Support 8mm 8-10 (11-13 Nm)
Rocker Adjuster Screw 6mm 6-7 (8-10 Nm)
Water Pump Impeller
Nut
6mm 5-6.5 (7-9 Nm)
Water Pump Housing
Cover
6mm 5-6.5 (7-9 Nm)
Stator Plate 6mm 5-6.5 (7-9 Nm)
Starter Motor 6mm 5-6.5 (7-9 Nm)
Spark Plug 14mm 9-11 (12-15 Nm)
Thermistor -- 26 ± 2.1 (35 ± 3 Nm)
PART NUMBER TOOL DESCRIPTION
2200634
Valve Seat Reconditioning
Kit
2870390 Piston Support Block
2871043 Flywheel Puller
2871283
Crankshaft/Water Pump
Seal Install Kit
5131135 Water Pump Install Kit
2870569 Crankshaft Truing Stand
2870975
Mity Vac™ Pressure Test
Tool
PV-43527 OIl Filter Wrench
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
6mm
Cylinder Head
Cylinder Base
Pattern
Crankcase
Pattern