Honda C8R600F4 Service Manual page 360

TROUBLESHOOTING
POOR PERFORMANCE AT HIGH SPEED
Possible cause
1. Disconnect fuel tube at carburetor - - - Fuel flow restricted------1 ... • Restricted fuel tube
I
Fuel flows freely
i
•Restricted fuel tank breather tube
•Clogged fuel filter
• Faulty fuel valve
•Faulty fuel pump
2. Check carburetor for clogging
I
- - - - - Clogged----------1 ... •Carburetor not serviced frequently
enough
Not clogged
i
3. Check valve t i m i n g - - - - - - - - - Incorrect
- - - - - - - - - - 1 ....
Cam sprockets not installed properly
I
Correct
i
4. Check ignition timing
I
Correct
i
- - - - - - - - Incorrect
- - - - - - - - - - 1 ... •
Faulty ignition control module (ICM)
• Faulty ignition pulse generator
5. Check valve s p r i n g - - - - - - - - - Weak - - - - - - - - - - - • F a u l t y valve spring
i
Not weak
POOR HANDLING
Possible cause
1. If steering is h e a v y - - - - - - - - - - - - - - - - - - - - - - - • Steering stem adjustment nut too tight
• Damaged steering head bearings
2. If either wheel is w o b b l i n g - - - - - - - - - - - - - - - - - - - - - • Excessive wheel bearing play
•Bent rim
• Improperly installed wht:t:ll huu
•Excessively worn swingarm pivot
bearings
•Bent frame
3. If the motorcycle pulled to one s i d e - - - - - - - - - - - - - - - - - • Front and rear wheels not aligned
•Bent fork
22-4
• Bent swingarm
•Bent axle
•Bent frame