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No. Item Remarks
Pre-Ope-
ration
check
(daily)
Initial Every
1
month
or 20 Hr
3
months
or 50 Hr
6
months
or 100 Hr
12
months
or 300 Hr
**
Check condition.
1. Spark Plug
Adjust gap and
0
clean. Replace if
necessary.
**
Check and adjust
2.* Valve Clearance when engine is 0
cold.
Check breather
**
hose for cracks or
0
3.*
Crankcase
damage. Replace
breather system
if necessary.
4.* Idle speed
Check and adjust
0
engine idle speed.
Check for leakage.
Retighten or
0
**
*replace gasket
5. Exhaust System
if necessary.
Check muffler
screen and spark
arrester. Clean/ 0
replace if
necessary.
Check oil level 0
6. Engine Oil
Replace 00
**
Clean.
7. Air Filter Replace if 0
necessary.
Clean fuel cock
8. Fuel Filter
and fuel tank 0
filter. Replace if
necessary.
* : It is recommended that these items be serviced by a Yamaha dealer.
** : Related to emission control system.
**
AE00401
PERIODIC MAINTENANCE
AE00403
MAINTENANCE CHART
Regular maintenance is most important for best performance and safe operation.
w
Stop the engine before starting maintenance work.
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