Troubleshooting; Maintenance Period - Maruyama M42BK-QC Manual Del Propietário

Troubleshooting

Problem
Engine Will Not Start
Engine Will Not Idle
Engine Lacks Power or Stall When
Cutting
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
Clean spark plug and adjust eleatrode gap
■ Remove dust and dirt from cylinder fins
● Clean spark arrester
Tighten bolts and nuts
● Remove carbon deposits in exhaust port
Replace fuel filter
● Remove carbon deposits on piston head and combustion chamber
● Remove carbon deposits in transfer port
Replece 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-stroke engine oil.
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-25 —
Cause
Daily
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It is recommended to replace every 3 years
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
25 hours 50 hours
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Every
100 hours
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