Service Manual

1P65FAEnginePartSpecications(continued)
Part
Item
StandardServiceLimit
SkirtOutsideDiameter2.558in.(64.985mm)2.553in.(64.845mm)
ClearancetoCylinder
0.00059-0.00196in.
(0.015-0.05mm)
0.0047in.(0.12mm)
PistonPinBoreInside
Diameter
0.512in.(13.002mm)0.514in.(13.048mm)
Piston
Piston-PinClearance
0.00007-0.0005in.
(0.002-0.014mm)
0.00314in.(0.08mm)
PistonPin
OutsideDiameter0.512in.(13.0mm)0.510in.(12.954mm)
EndGap(Top/Middle)
0.0078-0.0156in.(0.2-0.4
mm)
0.040in.(1.0mm)
Width(T op/Middle)0.0590in.(1.5mm)0.0539in.(1.37mm)
PistonRing
Width(OilRing)0.098in.(2.5mm)0.093in.(2.37mm)
SmallEndInsideDiameter0.513in.(13.02mm)0.515in.(13.07mm)
LargeEndInsideDiameter
1.024in.(26.02mm)1.026in.(26.07mm)
LargeEndtoCrankJournal
Clearance
0.0016-0.0025in.
(0.04-0.063mm)
0.0047in.(0.12mm)
ConnectingRod
LargeEndSideClearance
0.0039-0.0275in.(0.1-0.7
mm)
0.0433in.(1.1mm)
CrankshaftCrankPinOutsideDiameter1.023in.(25.98mm)1.020in.(25.92mm)
Clearance(Cold)Intake
0.004-0.006in.(0.10-0.15
mm)
N/A
Clearance(Cold)Exhaust
0.006-0.008in.(0.15-0.20
mm)
N/A
StemDiameter(Intake)0.216in.(5.48mm)0.209in.(5.318mm)
Valve
StemDiameter(Exhaust)0.214in.(5.44mm)0.208in.(5.275mm)
InsideDiameter(Intake,
Exhaust)
0.2165in.(5.50mm)0.2193in.(5.572mm)
StemtoGuideClearance
(Intake)
0.00039-0.00133in.
(0.01-0.034mm)
0.00393in.(0.10mm)
ValveGuide
StemtoGuideClearance
(Exhaust)
0.00196-0.00275in.
(0.05-0.070mm)
0.0047in.(0.12mm)
ValveSeatSeatWidth0.0315in.(0.8mm)0.0787in.(2.0mm)
ValveSpring
FreeLength
1.200in.(30.5mm)1.142in.(29.0mm)
Height(Intake)1.091in.(27.7mm)1.081in.(27.45mm)
Height(Exhaust)1.093in.(27.75mm)1.0826in.(27.50mm) CamShaft
OutsideDiameter(Bearing)0.550in.(13.984mm)0.548in.(13.916mm)
CamshaftHoleDiameter0.551in.(14.0mm)0.553in.(14.048mm)
CrankcaseCover
CrankshaftHoleDiameter1.000in.(25.4mm)1.005in.(25.52mm)
SparkPlug
Gap
NGKBPR6HS/Champion
RL87YC
Gap0.030in.(0.7-0.8mm)
Resistance(Primary)
1.1-1.6ohms
N/A
Resistance(Secondary)10.5Kohms±15%N/A IgniterCoils
GaptoFlywheel0.010in.(0.254mm)N/A
1P65FAEngineTorqueSpecications
1P65F-2ServiceManual
Page2–7
SpecicationsandMaintenance:Specications
3429-270RevA