Engine Idle Speed; Drive Chain - Honda CRF230F 2003 Service Manual

MAINTENANCE
ENGINE IDLE SPEED
NOTE:
• Inspect and adjust the idle speed after all other
engine maintenance items have been performed
and are within specifications .
• Engine must be warm for accu rate adjustment.
Ten minutes of stop-end-go riding is sufficient.
Warm the engine, shift the transmission into neutral
and support the motorcycle upright on a level sur-
face.
Connect a tachometer and check the idle speed.
IDLE SPEED: 1,400
±
100 rpm
If the adjustment is necessary, turn the throttle stop
screw as requi red.
DRIVE CHAIN
3-14
CHAIN SLACK INSPECTION
Turn the ignition switch to OFF, place the motorcy-
cle on its sidestand and shift the transmission into
neutral.
Check the slack in the lower drive chain run midway
between the sprockets.
CHAIN SLACK: 20 - 30 mm (3/ 4 - 1-1/4 in)
NOTICE
Excessive ch8in slack, 60
mm
(2-3/8 in) or more,
may damage the frame.
ADJUSTMENT
Loosen the rear axle nul.
Turn both chain adjusters equally until the slack is
correct, then temporarily tighten the axle nut.
A scale is included on the adjusters. Be sure the
same adjuster grooves align with the stopper pins
on both sides of the swingarm.
Chain slack should remain constant as the wheel
rotates.
If the chain is slack only in certain sections, inspect
it.
TIghten the rear axle nut.
TORQUE: 108 N'm (11 .0 kgf·m , 80 Ibf.ft)
Recheck the chain slack and free wheel rota tion .
•
•
STOPPER PINS
•