Honda 2010 CRF250R Service Manual page 12

GENERAL INFORMATION
ITEM
SPECIFICATION
FUEL DELIVERY
I
Type
PGM-FI
SYSTEM
Throttle bore
'10. '11 50 mm (2.0 in)
I
After '11 46 mm (1.8 in)
DRIVE TRAIN Clutch system Multi-plate, wet
Clutch operation system
Cable operated
Transmission
Constant mesh, 5-speed
Primary reduction
3.166 (57/18)
Final reduction
'10 3.692 (48/13)
After '10
3.769 (49/13)
Gear ratio
'"
2.357 (33/14)
20d 1.888 (34/18)
3cd
1.555 (28/18)
4th 1.333 (24/18)
5th
1.136 (25/22)
Gearshift pattern left foot operated return system ,
1-N-2-3-4-5
j
ELECTRICAL
Ignition system
Compuler-controned digital transistorized
with electric advance
Charging system
Single phase output alternator
Regulator/rectifier
SCR shorted/single phase. full wave
rectification
1-6