Periodic Maintenance; Maintenance Chart - Yamaha YP20T Owner's Manual

Maintenance chart

Regular maintenance is most important for best performance and safe operation.
WARNING
Stop the engine before starting maintenance work.
No. Item
** Spark plug
1.
2. Engine oil
** Air filter
3.
4. Fuel tank filter
** Valve clearance
5.*
6. Fuel line
** Crankcase
7.*
breather system
** Idle speed
8.*
** Exhaust system
9.
** Choke lever
10.
11.* Cooling system
12. Starting system
13.* ** Decarbonization
14. Water pump
15.* Fittings/Fasteners
* : It is recommended that these items be serviced by a Yamaha dealer.
** : Related to emission control system.
NOTICE
Use only Yamaha specified genuine parts for replacement. Ask an authorized
Yamaha dealer for further attention.

PERIODIC MAINTENANCE

Remarks
Check condition,
adjust gap and clean.
Replace if necessary.
Check oil level.
Replace.
Clean.
Replace if necessary.
Clean fuel cock and
fuel tank filter.
Replace if necessary.
Check and adjust
when engine is cold.
Check fuel hose for
cracks or damage.
Replace if necessary.
Check breather hose
for cracks or damage.
Replace if necessary.
Check and adjust
engine idle speed.
Check for leakage.
Retighten or
replace gasket if necessary.
Check muffler screen and
spark arrester. Clean or
replace if necessary.
Check choke operation.
Check fan damage.
Check recoil starter
operation.
More frequently if
necessary.
Check for leakage.
Retighten or replace
O-ring and/or gasket.
Check all fittings and
fasteners.
Correct if necessary.
Initial
Pre-opera-
tion check
1 month or
(daily)
20 Hr
7
7
7
7
7
7
7
– 16 –
Every
3 month or 6 month or
50 Hr 100 Hr
7
7
7
7
7
After every 500 Hrs.
7
12 month or
300 Hr
7
7
7
7