Yamaha RST90K, Owner'S Manual

Page: 55 / 99

8-1
ESU00139
8-
PERIODIC MAINTENANCE
ESU00140
Periodic maintenance chart
Regular maintenance is most important for best performance and safe operation.
CD-01E
Item Remarks
Pre-
operation
check
(Daily)
Initial
1 month
or
800 km
(500 mi)
(40 hr)
Every
Page
Seasonally
or
3,200 km
(2,000 mi)
(160 hr)
Spark plugs
Check condition.
Adjust gap and clean.
Replace if necessary.
●
8-4–8-5
∗
Valve clearance
Check clearance.
Adjust clearance when engine
is cold.
Every 40,000 km (25,000 mi) 8-9
Engine oil
Check oil level.
●
6-3–6-4
∗
Replace.
● ●
Engine oil filter
cartridge
Replace.
●
Every
20,000 km
(12,000 mi)
8-10–8-12
Fuel Check fuel level.
●
6-1–6-2
∗
Fuel filter
Check condition.
Replace if necessary.
●
∗
Fuel line
Check fuel hose for cracks or
damage.
Replace if necessary.
●
Engine coolant
Check coolant level.
●
6-4,
8-13–8-14
∗
Air bleed the cooling system
if necessary.
●
8-13
Carburetor
Check throttle lever operation.
●
5-2, 6-5
∗
Adjust the jets.
Whenever operating condition
(elevation/temperature) is changed.
Engine stop switch
Check operation.
∗
Repair if necessary.
●
5-8
Throttle override
system (T.O.R.S.) Check operation.
∗
Repair if necessary.
●
5-3, 6-5
Throttle lever
Check operation.
∗
Repair if necessary.
●
5-2, 6-5
∗
Exhaust system
Check for leakage.
Tighten or replace gasket if
necessary.
●
∗
It is recommended that these items be serviced by a Yamaha dealer.
U8ET10.book Page 1 Monday, June 14, 2004 5:42 PM