Craftsman 919.670031 Service Adjustments, Clean and Replace Spark Plug, Carburetor, Governor

Clean Cooling System

Debris may clog engine's air cooling system, espe- cially after prolonged operation. Internal cooling fins and surfaces may require cleaning to prevent over- heating and engine damage. Remove blower housing and clean.

Clean

Clean and Replace Spark Plug

Check spark plug yearly or every 100 operating hours or every season.

•Clean area around spark plug.

•Remove and inspect spark plug.

•Replace spark plug if electrodes are pitted, burned or porcelain is cracked.

•Check electrode gap with wire feeler gauge and set gap .030/.76mm if necessary.

•Install spark, tighten securely.

.030" (0.76mm) Wire Gauge

Spark Plug

SERVICE ADJUSTMENTS

CARBURETOR

The carburetor of your generator is pre-set at the fac- tory. The carburetor should not be tampered with. If your generator is used at an altitude in excess of 4000 feet performance may be affected. If so consult with your nearest Craftsman Service Center regarding high altitude set changes.

GOVERNOR

Your engine governor maintains the constant operating speed of your generator. DO NOT tamper with the en- gine governor which is factory set for proper engine speed.

Over-speeding your engine above factory high speed set- ting can be dangerous and could possibly cause per- sonal injury or property damage. If you believe the en- gine is running too fast or slow, take your generator to a Authorized Craftsman Service Center for repair and ad- justment.

Low engine speeds impose a heavy load on the engine and when sufficient power is not available the engine

life could be shortened.

D20346 Rev. 0 2/28/00

16 — ENG