Yamaha G21A manual Maintenance, 1 2 3 4 5, Every

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MAINTENANCE

C - CHECK	CA - CHECK AND ADJUST	R - REPLACE		S - SERVICE CL - CLEAN AND LUBRICATE				L - LUBRICATE
				20 Rounds	125 rds	250 rds	500 rds	1000 rds
			Pre-	20 hours	125 hrs	250 hrs	500 hrs	1000 hrs
	Remarks		Opera-	100 miles	600 mls	1200 mls	2500 mls	5000mls
			tion	160 kms	1000 kms	2000 kms	4000 kms	8000 kms
				(Every	(Every 6	(Every	(Every	(Every
				month)	months)	year)	2 years)	4 years)	Page
EVERY	Replace engine oil					R	R	R	8-5
YEAR	Adjust throttle cables,**					CA	CA	CA	*
	choke cable, check carburetor
	throttle shaft for wear**
	Check starter V-belt for					C	C	C	*
	damage and tension
	Check drive belt for slippage,					C	C	C	8-8
	wear or scratches
	Check sliding sheave and					CL	CL	CL	*
	ramp shoes; Grease secondary
	sheave bearing.
	Grease primary sheave					L	L	L	*
	Check operation of speed limiter					C	C	C	*
	Apply battery terminal protectant					S	S	S	–
	Check wiring connections					C	C	C	–
	and insulation
	Check shoe lining thickness					C	C	C	*
	and rear axle bearing play
	Check kingpin play, seal, and					CA	CA	CA	*
	cap / Adjust wheel alignment
	Check wheel nut tightness,					C	C	C	*
	front wheel bearing play
	Check gear box oil level					C	C	C	8-10
	and leakage
	Check operation and adjust					CA	CA	CA	*
	pedal stop if necessary
EVERY	Check brushes for wear and						C	S	*
2 YEARS	commutator for dirt
EVERY	Replace fuel filter and							R	*
4 YEARS	fuel hoses
	Check tightness of cylinder							CA	*
	head / Adjust valves
	Replace gear box oil							R	8-10
	Check for grease leakage;							CA	*
	adjust gearbox if necessary

*Items with out a page number reference should be serviced by a Yamaha dealer or other qualified mechanic. This manual does not contain these procedures. They are contained in the Service Manual.

**Related to emission control system.

8-2 UTILITY