Yamaha VK540EF, Service Manual, Page: 40 / 439

2-1
INTRODUCTION/PERIODIC MAINTENANCE TABLE
INSP
ADJ
ESS00029
PERIODIC INSPECTIONS AND ADJUSTMENTS
ESS00030
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections and adjust-
ments.
These preventive maintenance procedures, if followed, will ensure more reliable machine operation
and a longer service life. In addition, the need for costly overhaul work will be greatly reduced. This
information applies to machines already in service as well as new machines that are being prepared for
sale.
All service technicians should be familiar with this entire chapter.
ESS00031
PERIODIC MAINTENANCE TABLE
Initial
Every
Item Remarks
Pre-
operation
check
(Daily)
1 month
or
800 km
(500 mi)
(40 hr)
Seasonally
or
3,200 km
(2,000 mi)
(160 hr)
Spark plug
Check condition adjust the gap and clean.
Replace if necessary.
Engine oil
Check oil level.
Engine oil
Air bleed the oil pump if necessary.
Oil filter
Check condition.
Replace if necessary.
Fuel Check fuel level.
Fuel filter
Check condition.
Replace if necessary.
Fuel line
Check fuel hose for cracks or damage.
Replace if necessary.
Oil line
Check oil hose for cracks or damage.
Replace if necessary.
Carburetor
Check throttle lever
operation.
Carburetor
Adjust the jets.
Whenever operating condition
(elevation / temperature) is changed.
Fan belt
Check wear and damage.
Replace if necessary.
Adjust fan belt if necessary.
Manual starter
Check operation and rope damage.
Replace if necessary.
Engine stop switch
Check operation.
Repair if necessary.
Throttle override
system Check operation.
Repair if necessary.
Throttle lever
Check operation.
Repair if necessary.
Exhaust system
Check for leakage.
Retighten or replace gasket if necessary.
Decarbonization More frequently if necessary.
Drive V-belt guard
Check cracks, bends or damage.
Replace if necessary.
Drive V-belt
Check wear and damage.
Replace if necessary.