Honda MBX50, Руководство по ремонту

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TROUBLESHOOTING
CHECK
9. Ch}ck oil level. Also check
oil for contamination
CRAl\!KCASE IS FILLED TO
PROPER LEVEL
10. ChJck if engine overheats
ENGINE IS NOT OVERHEATED
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11. Accelerate or run at high speed
ENGINE DOES NOT KNOCK
�HONDA
� MBX50· MBX80
PROBABLE CAUSE
LEVEL IS TOO LOW OR T00-----(1) Transmissio oil level too high,
HIGH resulting in lack of power
(2) Transmission oil level too low
(3) No engine oil in oil tank
(4) Oil deteriorated or contami­
nated
ENGINE OVERHEATS-------(1) Improperly adjusted oil pump
(2) Excessive carbon build-up in
combustion chamber
(3) Use of improper quality fuel
(4) Mixture too lean
(5) Clutch slipping
ENGINE KNOCKS---------(1) Worn piston rings and cylinder
(2) Fuel air mixture too lean
(3) Excessive carbon build-up in
combustion chamber
(4) Ignition timing too early
(advanced)
POOR PERFORMANCE AT LOW AND IDLE SPEEDS
CHECK
PROBABLE CAUSE
1.
Check ignition timing INCORRECT
( 1) Faulty COi unit
(2)
Faulty alternator
NORMAL
2.
Ch}ck carburetor air screw
INCORRECT
( 1) Fuel air mixture too lean
adjustment
(To correct, screw in)
(2)
Fuel air mixture too rich
NORMAL (To correct, screw out)
3.
Air is
leaking past carburetor
LEAKING
( 1) Deteriorated insulator
packing
0-ring
(2)
Loose carburetor
NOT LEAKING (3) Deteriorated carburetor
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packing
4.
( 1)
Remove spark plug and try
WEAK OR INTERMIITENT Defective, or carbon or wet
spark test
SPARK
fouled spark plug
(2)
Faulty alternator
GOOD SPARKS
(3)
Faulty ignition coil
(4) Faulty COi unit
18-4