Yamaha Wolverine YX70EPNG, Service Manual

Page: 106 / 503

PERIODIC MAINTENANCE
3-1
EBS20023
PERIODIC MAINTENANCE
EBS30024
INTRODUCTION
This chapter includes all information necessary to perform recommended checks and adjustments. If
followed, these preventive maintenance procedures will ensure more reliable vehicle operation, a lon-
ger service life and reduce the need for costly overhaul work. This information applies to vehicles al-
ready in service as well as to new vehicles that are being prepared for sale. All service technicians
should be familiar with this entire chapter.
EBS30025
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM
• For vehicles not equipped with an odometer or hour meter, follow the month maintenance intervals.
• For vehicles equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance
intervals. However, keep in mind that if the vehicle 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.
EBS30026
GENERAL MAINTENANCE AND LUBRICATION CHART
NO. ITEM
CHECK OR MAINTENANCE
JOB
INITIAL EVERY
Whichever
comes first
month 1 3 6 6 12
km (mi)
320
(200)
1200
(750)
2400
(1500)
2400
(1500)
4800
(3000)
hours 20 75 150 150 300
1 * Fuel line
• Check fuel hose for cracks or damage.
• Replace if necessary.
√ √ √
2 * Valves
• Check valve clearance.
• Adjust if necessary.
√ √ √ √
3 Spark plug
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
√ √ √ √ √
4 *
Crankcase breather
system • Check breather hose for cracks or damage.
• Replace if necessary.
√ √ √
5 * Exhaust system
• Check for leakage.
• Tighten if necessary.
• Replace gasket(s) if necessary.
√ √ √
6 Spark arrester • Clean.
√ √ √
7 * Air induction system
• Check the air cut-off valve, reed valve, and hose for
damage.
• Replace any damaged parts if necessary.
√ √ √ √ √
NO. ITEM
CHECK OR MAINTENANCE
JOB
INITIAL EVERY
Whichever
comes first
month 1 3 6 6 12
km (mi)
320
(200)
1200
(750)
2400
(1500)
2400
(1500)
4800
(3000)
hours 20 75 150 150 300
1 * Cooling system
• Check coolant leakage.
• Repair if necessary.
√ √ √ √ √
• Replace coolant. Every 2 years
2 Air filter element
• Clean.
• Replace if necessary. Every 20–40 hours
(more often in wet or dusty areas.)
3 Engine oil • Replace (warm engine before draining).
√ √ √ √
4
Engine oil filter car-
tridge
• Replace.
√ √ √