Honda CRF80F 2009 Owner's Manual page 140

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Specifications
Engine Specifications
Valve clearance
(cold)
Spark plug
(standard)
Spark plug
(cold climate;
below 5°C, 41°F)
Spark plug
(extended high
speed riding)
Spark plug gap
Idle speed
132
Technical Information
Intake:
0.002 in
(0.05 mm)
Exhaust:
0.002 in
(0.05 mm)
CR7HSA (NGK)
or
U22FSR-U (DENSO)
CR6HSA (NGK)
or
U20FSR-U (DENSO)
CR8HSA (NGK)
or
U24FSR-U (DENSO)
0.024 0.028 in
(0.60 0.70 mm)
±
1,500
100 rpm
Power Transmission
Primary reduction
Gear ratio, 1st
2nd
3rd
4th
5th
Final reduction
Final drive
4.437
2.692
1.823
1.400
1.130
0.960
3.285
chain

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