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Troubleshooting
Problem
Engine Will Not Start
Engine Will Not Idle
Engine Lacks Power or Stalls
WhenCutting
If further assistance is required, contact your local authorized Maruyama service dealer.
Maintenance Period
Check and replenish fuel
Check for fuel leakage
Check bolts, nuts and screws for tightness or missing
Check engine idle speed adjustment
■ Clean air filter element
Tighten bolts and nuts
Clean spark plug and adjust electrode gap
■ Remove dust and dirt from cylinder fins
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Remove carbon deposits in exhaust port
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Clean spark arrester
Replace fuel filter
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Remove carbon deposits on piston head and combustion chamber
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Remove carbon deposits in transfer ports
Replace fuel tube, fuel tank cap gasket
●: Service to be performed by an authorized Maruyama engine dealer.
■: Service more frequently under dusty conditions.
NOTE:
The service intervals indicated are to be used as a guide.
Service to be performed more frequently as necessary depending on operating condition.
Use Maruyama standard 50:1 two-cycle engine oil.
Cause
STOP switch set to off position
Empty fuel tank
Primer bulb wasn't pushed enough
Engine flooded
Idle speed set incorrectly
Throttle wire has come loose
Dirty air filter
Clogged spark arrester or exhaust port.
Maintenance
— US-27 —
Action
Move switch to on position
Fill fuel tank
Press primer bulb until fuel flows
through fuel return line
Use warm engine starting procedure
Set idle speed
Tighten throttle wire
Clean or replace air filter
Clean spark arrester or exhaust port.
Every
Every
Daily
20 hours
50 hours 100 hours
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It is recommended to replace every 3 years
Every
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