Poor Performance At High Speed; Poor Handling - Honda CB400T Shop Manual

HONDA
C B 4 0 0 T
TROUBLESHOOTING
P O O R P E R F O R M A N C E
AT HIGH
S P E E D
Possible Cause:
1. Check ignition timing and
valve clearance.
CORRECT
2. Disconnect fuel tube
a t
FUEL FLOWS FREELY
3. Remove carburetor and
check for clogged jet.
NO CLOG
4. Check valve timing
CORRECT
INCORRECT
-
(1) Valve clearance incorrect
(2) C.D.I. unit out of order
(3)
A.D. generator
a t
fault
FUEL FLOW
t
(1) Fuel tank empty
RESTRICTED (2) Clogged fuel line
13) Clogged fuel tank cap breather hole
(4) Clogged fuel valve
JET CLOGGED
r
(1) Clean
INCORRECT
c
(1 Cam sprocket is not installed properly
5. check valve spring tension WEAK
-
(1) Faulty spring
POOR
HANDLING
+Check tire pressures.
Possible Cause:
1. If steering is heavy
-
(1) Steering cone races too tight
(2) Damaged steering steel balls
2. If either wheel is wobbling
-
(1) Excessive wheel bearing play.
121 Distorted rim
(3) Improperly installed wheel hub
(4) Swingarm pivot bushing excessively
worn
(5) Distorted frame
(6) Improper drive chain tension or
adjustment
3. If the motorcycle pulls to one side
-
(1) Unbalanced shock absorbers
12) Front and rear wheels not aligned
(3) Bent front fork
(4) Bent swingarm
Date of Issue: September. 1977
0 HONDA MOTOR CO.. LTD.