Yamaha E40J - Electrical; Lower Unit

Electrical
Item Unit
Model
E40GMH E40GWH E40JMH E40JWH E40JW
Ignition and ignition control
system
Ignition timing (full retired) Degree BTDC 4 at engine idle speed
Ignition timing (full advanced) Degree BTDC 23
Ignition spark gap mm (in) 0.6–0.7 (0.024–0.028)
Ignition coil resistance
Primary coil (O–B) Ω 0.26–0.35
at 20°C (68°F)
Secondary coil
(spark plug wire–spark plug wire) kΩ 6.8–10.2
at 20°C (68°F)
SPEC
2-5
6F65G11
Specifications
Item Unit
Model
E40GMH E40GWH E40JMH E40JWH E40JW
Carburetor
ID mark 6F605 6J404
Main jet (M.J.) # 150
Main air jet (M.A.J.) ø1.70
Main nozzle (M.N.) mm (in) 2.0 (0.08)
Pilot jet (P.J.) # 88
Pilot air jet (P.A.J.) ø1.10
Pilot screw (P.S.) turns out 1 – 1 1/2
Pilot screw (*2) (P.S.) turns out 1 – 1 1/2 1/2 – 1
Valve seat size mm (in) 2.0 (0.08)
Float height mm (in) 12.0–13.0 (0.47–0.51)
Lower unit
Item Unit
Model
E40GMH E40GWH E40JMH E40JWH E40JW
Gear backlash
Pinion-to-forward mm (in)
Pinion-to-reverse mm (in)
Pinion gear shims mm
Forward gear shims mm
Reverse gear shims mm
(*2) For CHINA
0.05–0.24
(0.0020-0.0094)
0.40–0.59
(0.0157–0.0232)
0.70, 0.75,
0.80, 0.85
0.70, 0.80, 0.90,
1.00, 1.10, 1.20
1.80, 1.90, 2.00,
2.10, 2.20, 2.30,
2.40, 2.50
0.19–0.47
(0.0075-0.0185)
0.76–1.04
(0.0299–0.0409)
0.05, 0.08, 0.12, 0.30, 0.50
0.05, 0.08, 0.12, 0.30, 0.50
0.05, 0.08, 0.12, 0.30, 0.50