Honda Hawk GT NT650 1988 Service Manual page 252

POSSIBLE CAUSE
TROUBLESHOOTING
[Continued]
I
8. Test ride check valve train VALVE SURGING----------· Improper valve clearance (too small)
I
Weak valve spring
NO PROBLEM Worn camshaft
9. Ch!Ck for clutch slippage CLUTCH S L l P S - - - - - - - - - - . .. • Improper clutch lever free play
I •
Faulty clutch lifter system
NO PROBLEM Worn or warped clutch disc/plate
I
Weak clutch spring
10. Clean the carburetors: air passages
BETTER-------------l_~·
Clogged air passages
and jets • Clogged jets
I
DOES NOT IMPROVE
.... 1
----<.. ~.
Seized cylinder and piston
Seized connecting rod bearing
Damaged main bearing
20-7