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CUSTOMER RESPONSiBILITiES
CLEAN COOUNG SYSTEM
• Clean dirtor chaff from finger 0uard or rotating screen
even] 8 hours to prevent engine damage caused by
ovedleating (Fig. 25),
= Keep dirt and combustible debris off of muffler area.
REPLACE SPARK PLUG
Change the spark plug every 100 hou rsofoperation or'
once each year, whichever comes first, This will help
engine to start easier and run better. See pressure
washer specifications for the type of spark plug you
need. Spark plug gap is 0.030 inch (0.76mm).
CLEAN OUT
CHAFFAND
DIRT
FIG.
SERVICE AND ADJUSTMENTS
ENGINE ADJUSTMENTS
Carburetor:
Differences in fuel, temperature, altitude or load may re-
quire minor carburetor adjustment. Air cleaner and air
cleaner cover must be assembled to carburetor before
starting engine.
INITIAL ADJUSTMENT
• Gently turn NEEDLE VALVE (Fig 26) clockwise until it
just closes_ Valve may be damaged by turning it inward
too far,
° Next open NEEDLE VALVE 1.1/2 turns counterclock-
wise.
= This initial adjustment will permit the engine to be
started and warmed up.
FINAL ADJUSTMENT
o
°
Start engine and let itwarm up for at least fiveminutes.
With engine running, turn NEEDLE VALVE inward
(clockwise - lean mixture) until engine just starts to
slow=
IDLE SPEED THROTTLE
ADJUSTING SCREW STOP
\
\
THROTTLE
NEEDLE VALVE
Engine Speed:
WARNING: NEVER TAMPER WITH ENGINE GOV-
ERNOR WHICH IS FACTORY SET FOR PROPER
ENGINE SPEED. OVERSPEEDING ENGINE
ABOVE FACTORY HIGH SPEED SETTING CAN BE
DANGEROUS.
FIG. 26
]6