Yamaha F80A - Lower

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SPEC
E
MAINTENANCE SPECIFICATIONS
LOWER
FUEL PUMP
Discharge
L (US gal, Imp gal)/
hr @ 3,000 r/min
65 (17.16, 14.3)
Maximum pressure kPa (kgf/cm
2
, psi) 49 (0.49, 6.97)
Plunger stroke mm (in) 5.85 ~ 9.05 (0.23 ~ 0.36)
OIL PUMP
Discharge
at 100 ˚C (212 ˚F), with
10W-30 engine oil
L (US gal, Imp gal)
/min @ 1,000 r/min
5.9 (1.56, 1.30)
Pressure kPa (kgf/cm
2
, psi) 118 (1.18, 16.78)
Relief valve opening pressure kPa (kgf/cm
2
, psi) 490 (4.90, 69.69)
CARBURETOR
ID mark
Worldwide, CANADA
67G00 67F00
USA 67G10 67F10
Main jet # 112 128
Main air jet # 115 75
Pilot jet # 45 42
Pilot air jet # 85 85
Mid-range jet # — 40
Pilot screw Turns out 2-1/2 ± 1/2 2 ± 1/2
Float height mm (in) 14 (0.55)
Engine idling speed r/min 850 ~ 950
PTT UNIT
Fluid type ATF, Dexron II
Relief pressure
Up operation MPa (kgf/cm
2
, psi) 18.0 (180, 2,560)
Down operation MPa (kgf/cm
2
, psi) 2.0 (20, 284)
Trim piston relief valve opening
pressure
MPa (kgf/cm
2
, psi) 9.5 (95, 1,351)
Tilt piston relief valve opening
pressure
MPa (kgf/cm
2
, psi) 31.0 (310, 4,409)
Ram stroke
Trim operation mm (in) 45 (1.77)
Tilt operation mm (in) 110 (4.33)
Item Unit
Model
F80 F100
GEAR BACKLASH
Forward gear mm (in) 0.13 ~ 0.46 (0.005 ~ 0.018)
Adjusting shim thickness mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Item Unit
Model
F80 F100