Troubleshooting
Problem
Engine Will Not Start
Engine Will Not Idle
Engine Lacks Power or Stalls When
Cutting
If further assistance is required, contact your local authorized Maruyama service dealer.
Specifications
※1
Weight
(1bs)
Engine Displacement (cm
Anti Vibration
Carburetor
Ignition
Fuel Tank Capacity (qts.)
Gas to Oil Ratio
Spark Plug
Spark Plug Gap (in.)
EPA and CARB Approved
※
1. Dry weight without Blade and Harness.
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 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
●: 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.
"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
B42L
17.2 (7.8kg)
3
)
Maintenance
Cause
B42
18.3 (8.3kg)
3
41.5 cm
Dual Isolation - grip and engine mount
Walbro Diaphragm Type
Solid State
1.06 (1.0ℓ)
50:1
NGK BPM8Y
024 -.028 (0.6 - 0.7 mm)
Phase3, Tier3
Daily
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It is recommended to replace every 3 years
— US-30 —
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
B42A
18.0 (8.2kg)
Every
Every
25 hours
50 hours 100 hours
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Every
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