Troubleshooting; Maintenance Period - Maruyama B23L Manuel Du Propriétaire/De L'utilisateur

232025-04 12.11.30 11:50 AM ページ 32

Troubleshooting

Troubleshooting
Problem
Problem
Engine Will Not Start
Engine Will Not Start
Engine Will Not Idle
Engine Will Not Idle
Engine Lacks Power or Stalls When
Engine Lacks Power or Stalls When
Cutting
Cutting
If further assistance is required, contact your local authorized Maruyama service dealer.
If further assistance is required, contact your local authorized Maruyama service dealer.

Maintenance Period

Maintenance Period
Check and replenish fuel
Check and replenish fuel
Check for fuel leakage
Check for fuel leakage
Check bolts, nuts and screws for tightness or missing
Check bolts, nuts and screws for tightness or missing
Check engine idle speed adjustment
Clean air filter element
■ Check engine idle speed adjustment
Tighten bolts and nuts
Clean air filter element
■
Clean spark plug and adjust electrode gap
Clean spark plug and adjust electrode gap
Remove dust and dirt from cylinder fins
■
Remove dust and dirt from cylinder fins
■ Remove carbon deposits in exhaust port
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Clean spark arrester
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Clean spark arrester
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Replace fuel filter
Tighten bolts and nuts
Remove carbon deposits on piston head and combustion chamber
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Remove carbon deposits in exhaust port
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Remove carbon deposits in transfer ports
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Replace fuel filter Replace fuel tube, fuel tank cap gasket
Remove carbon deposits on piston head and combustion chamber
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● : Service to be performed by an authorized Maruyama engine dealer.
■ : Service more frequently under dusty conditions.
Remove carbon deposits in transfer ports
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Replace fuel tube, fuel tank cap gasket
NOTE:
● : Service to be performed by an authorized Maruyama engine dealer.
The service intervals indicated are to be used as a guide.
■ : Service more frequently under dusty conditions.
Service to be performed more frequently as necessary depending on operating condition.
Use Maruyama standard 50:1 two-cycle engine oil.
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.
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Cause
Cause
STOP switch set to off position
STOP switch set to off position
Empty fuel tank
Empty fuel tank
Primer bulb wasnʼt pushed enough
Primer bulb wasn't pushed enough
Engine flooded
Engine flooded
Idle speed set incorrectly
Idle speed set incorrectly
Throttle wire has come loose
Throttle wire has come loose
Dirty air filter
Dirty air filter
Clogged spark arrester or exhaust port.
Clogged spark arrester or exhaust port.
Maintenance
Maintenance
— US-31 —
− US-25 −
Action
Action
Move switch to on position
Move switch to on position
Fill fuel tank
Fill fuel tank
Press primer bulb until fuel flows
Press primer bulb until fuel flows
through fuel return line
through fuel return line
Use warm engine starting procedure
Use warm engine starting procedure
Set idle speed
Set idle speed
Tighten throttle wire
Tighten throttle wire
Clean or replace air filter
Clean or replace air filter
Clean spark arrester or exhaust port.
Clean spark arrester or exhaust port.
Every Every
Every Every
Daily 25 hours 50 hours
Daily 20 hours 50 hours 100 hours
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It is recommended to replace every 3 years
It is recommended to replace every 3 years
Every
Every
100 hours
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13/12/25 14:51