Piaggio-Typhoon-50-EN _Service Manual
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Troubleshooting <strong>Typhoon</strong> <strong>50</strong><br />
Possible Cause<br />
Defective spark plug or with incorrect electrode gap<br />
Intake joint cracked or with a bad seal<br />
Purifier-carburettor fitting damaged<br />
Operation<br />
Remove the encrustation, restore the plug gap or replace being<br />
sure to use the types of spark plug recommended at all times.<br />
Bear in mind that many problems engines have, derive from<br />
the use of the wrong spark plug<br />
Replace the intake joint and check its tightness on the crankcase<br />
and on the carburettor<br />
Replace<br />
Excessive oil consumption/Exhaust smoke<br />
EXCESSIVE OIL CONSUMPTION/SMOKEY EXHAUST<br />
Possible Cause<br />
Operation<br />
Excess of encrustations in the combustion chamber<br />
Remove the encrustations<br />
Engine tends to cut-off at full throttle<br />
<strong>EN</strong>GINE STOP FULL THROTTLE<br />
Possible Cause<br />
Operation<br />
Maximum nozzle dirty - lean mixture<br />
Wash the nozzle with solvent and dry with compressed air<br />
Dirty carburettor<br />
Wash the carburettor with solvent and dry with compressed air<br />
Water in the carburettor<br />
Empty the tank through the appropriate bleed nipple.<br />
Air filter dirty<br />
Clean or replace<br />
Defective floating valve<br />
Check the proper sliding of the float and the functioning of the<br />
valve<br />
Tank breather hole obstructed<br />
Restore the proper reservoir aeration<br />
Engine tends to cut-off at idle<br />
Possible Cause<br />
Minimum nozzle dirty<br />
Starter that stays open<br />
Reed valve does not close<br />
Wrong idling adjustment<br />
Spark plug defective or faulty<br />
Excessive exhaust noise<br />
<strong>EN</strong>GINE STOP IDLING<br />
Operation<br />
Wash the nozzle with solvent and dry with compressed air<br />
Check: electric wiring, circuit continuity, mechanical sliding and<br />
power supply<br />
Check / replace the reed pack<br />
Correctly adjust the engine idling and check the level of the<br />
C.O.<br />
Replace the spark plug with one with the specified degree and<br />
check the plug gap<br />
INCREASED NOISINESS<br />
Possible Cause<br />
Operation<br />
Secondary metal air pipe deteriorated<br />
Check the seal of the piping on the crankcase and on the housing,<br />
check the piping between the housing and the muffler.<br />
Good condition of the missing secondary air circuit components Check the individual components and the piping, check the<br />
precision of the fitting. Replace the damaged components<br />
TROUBL - 34
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