Poor Performance At High Speed; Poor Handling - Honda 2000 XR50R Service Manual

TROUBLESHOOTING
POOR PERFORMANCE AT HIGH SPEED
Possible cause
1. Disconnect fuel tube and check the - - - Fuel flow
restrictedj-----~
••. Clogged fualline
fuel flow . Clogged fuel tank breather tube
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Faulty fuel valve
Fuel flows freely . Clogged fuel strainer
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2. Remove the carburetor and check - - - Cloggedl----------·· . Clean
for clogging
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Not clogged
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3. Check valve timing - - - ----:- - - - -
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Correct
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4. Check ignition t i m i n g l - - - - - - - - -
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Correct
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Incorrect - - - - - - - - - . . . Cam sprocket not installed properly
Incorrect - - - - - - - - - - - . Faulty ignition control module
· Faulty ignition pulse generator
5. Check valve spring - - - - - - - - - - Weak ----------~.- . Faulty spring
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Not weak
POOR HANDLING
Possible cause
1. If steering is heavy - - - - - - - - - - - - - - - - - - - - - - - - . Steering stem adjusting nut too tight
• Damaged steering head bearings
2.lf either wheel is wobbling -------------------~.- , Excessive wheel bearing play
· Bent rim
, Improper installed wheel hub
· Swingarm pivot bushing excessively
worn
· Bent frame
3.lf the motorcycle pulled to one side - - - - - - - - - - - - - - - - - - . Faulty shock absorber
· Front and rear wheel not aligned
· Bent fork
· Bent swingarm
· Bent axle
16-4
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