Zenoah GZ50N owner manual Troubleshooting guide, Check Probable Causes Action

GZ50N

9. Troubleshooting guide

Case 1. Starting failure
	CHECK	PROBABLE CAUSES	ACTION
	fuel tank	→ incorrect fuel	→ drain it and use correct fuel
	fuel filter	→ fuel filter is clogged	→ clean
	carburetor adjustment screw	→ out of normal range	→ adjust to normal range
	sparking (no spark)	→ spark plug is fouled/wet	→ clean/dry
		→ plug gap is incorrect	→ correct (GAP: 0.6 ~ 0.7 mm)
	spark plug	→ disconnected	→ retighten
Case 2. Engine starts but does not keep running/hard re-starting
	CHECK	PROBABLE CAUSES	ACTION
	fuel tank	→ incorrect fuel or staled fuel	→ drain it and use correct fuel
	carburetor adjustment screw	→ out of normal range	→ adjust to normal range
	muffler, cylinder (exhaust port)	→ carbon is built-up	→ wipe away
	air cleaner	→ clogged with dust	→ wash
	cylinder fin, fan cover	→ clogged with dust	→ clean

When your unit seems to need further service, please consult with our ZENOAH service shop in your area.

GB-8