Periodic Checks And - Yamaha 2012 Grizzly 300 Service Manual

INTRODUCTION/PERIODIC MAINTENANCE
CHART FOR THE EMISSION CONTROL SYSTEM
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended checks and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable machine operation
and a longer service life. The need for costly overhaul work will be greatly reduced. This information
applies to machines already in service as well as to new machines that are being prepared for sale.
All service technicians should be familiar with this entire chapter.
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM
TIP
• For ATVs not equipped with an odometer or an hour meter, follow the month maintenance inter-
vals.
• For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance
intervals. However, keep in mind that if the ATV isn't used for a long period of time, the month main-
tenance intervals should be followed.
• Items marked with an asterisk should be performed by a Yamaha dealer as they require special
tools, data and technical skills.
NO. ITEM
1 Fuel line
*
2 Spark plug
3 Valves
*
4 Carburetor
*
Crankcase breather
5
*
system
6 Exhaust system
*
7 Spark arrester
Whichever
CHECK OR MAINTENANCE
JOB
• Check fuel hoses for cracks or other damage, and
replace if necessary.
• Check condition and clean, regap, or replace if
necessary.
• Check valve clearance and adjust if necessary.
• Check starter (choke) operation and correct if nec-
essary.
• Check engine idling speed and adjust if neces-
sary.
• Check breather hose for cracks or other damage,
and replace if necessary.
• Check for leakage and replace gasket(s) if neces-
sary.
• Check for looseness and tighten all screw clamps
and joints if necessary.
• Clean.
3-1
INITIAL
month 1
comes
km 320 1300 1300 1300
first
(mi) (200) (800)
hours 20
√
√
CHK
ADJ
EVERY
3 6 6 12
2500 2500 5000
(1600) (1600) (3200)
80 160 160 320
√ √ √
√ √ √ √
√ √ √
√ √ √ √
√ √ √
√ √ √
√ √ √