Yamaha 40ER, Service Manual

Page: 29 / 224

2-8
SPEC
E
MAINTENANCE SPECIFICATIONS
THERMOSTAT:
Opening temperature ˚C (˚F) 48 ~ 52 (118 ~ 126)
Full-opening temperature ˚C (˚F) 60 (140)
Valve lift mm (in) 3 (0.12)
OIL INJECTION PUMP:
Identification mark 63D00
Specified discharge cm
3
(US
oz, Imp oz)
1.60
±
0.50 (0.054
±
0.017, 0.056
±
0.018)
REED VALVE:
Valve stopper height mm (in) 6.0
±
0.2 (0.24
±
0.01)
Valve bending limit mm (in) 0.2 (0.01)
CARBURETOR: (M model) (E, W model) (M model) (E, W model)
Identification mark 63B00 63D00 62W00 62X00
Float height mm (in) 15.0
±
1.0 (0.59
±
0.04)
Valve seat size mm (in) 1.2 (0.05)
Main jet (M.J.) # 115 118(M) 125 130
Main nozzle (M.N.) mm (in) 3.0 (0.12) 3.2 (0.13) 3.0 (0.12)
Main air jet (M.A.J.) # 160 130 140
Pilot jet (P.J.) # 60 62
Pilot air jet (P.A.J.) # 75 90 80
Pilot screw (P.S.) turns out 1-1/2
±
1/4 1-5/8
±
1/4 1-3/8
±
1/4
Starter jet (S.J.) mm (in) — 1.0 (0.04) — 1.0 (0.04)
Electrothermal valve resistance
(color — color)
Ω
(color) —
2.32 ~ 3.48
(L — B)
—
2.32 ~ 3.48
(L — B)
Idle speed rpm 800
±
50
RECOIL STARTER:
Starter rope length mm (in) 2,095 (82.5)
Item Unit
Model
40 hp 50 hp