−
US-25
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Troubleshooting
Problem
Cause
Action
Engine Will Not Start
STOP switch set to off position
Empty fuel tank
Primer bulb wasnʼt pushed enough
Engine flooded
Move switch to on position
Fill fuel tank
Press primer bulb until fuel flows
through fuel return line
Use warm engine starting procedure
Engine Will Not Idle
Idle speed set incorrectly
Set idle speed
Engine Lacks Power or Stalls When
Cutting
Throttle wire has come loose
Dirty air filter
Clogged spark arrester or exhaust port.
Tighten throttle wire
Clean or replace air filter
Clean spark arrester or exhaust port.
If further assistance is required, contact your local authorized Maruyama service dealer.
Maintenance Period
Maintenance
Daily
Every
25 hours
Every
50 hours
Every
100 hours
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 electrode 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 ports
●
Replace fuel tube, fuel tank cap gasket
It is recommended to replace every 3 years
●
: 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.
Summary of Contents for EH27D
Page 81: ...FR 26...
