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Maintenance Items
Every 8
hours
(Daily)
Every
20
hours
Every
200
hours
Every
500
hours
Every
1000
hours
Clean generator and check bolts and nuts
(Daily)
Check and refill engine oil
(Refill daily to
upper level)
Change engine oil (*Note 1)
(Initial)
Check battery electrolyte fluid level
Clean spark plug
Clean air cleaner
Clean fuel strainer
Replace air cleaner element
Clean and adjust spark plug and electrodes
Replace engine oil filter (*Note 1)
(Initial)
Clean and adjust carburetor (*Note 2)
Remove carbon from cylinder head (*Note 2)
Every
50
hours
Clean engine base (oil pan) (*Note 2)
Check and adjust valve clearance (*Note 2)
Replace spark plug
Replace fuel lines
(Yearly)
Overhaul engine (*Note 2)
Check and replace carbon brushes
Periodic Maintenance Schedule table
*Note 1 : Initial oil change should be performed after first twenty (20) hours of operation.
Thereafter change oil every hundred (100) hours.
Before changing oil, check for a suitable way to dispose of old oil.
Do not pour it down into sewage drains, onto garden soil or into open streams.
Your local zoning or environmental regulations will give you more detailed instruc-
tions on proper disposal.
*Note 2 : As to the procedures for these items, please refer to the SERVICE MANUAL or
consult your nearest Yamaha dealer.
*Note 3 : More frequent oil changing, oil filter replacement and air cleaner service on
replacement may be necessary depending on operating conditions.
This would include dusty environment, high ambient temperature, heavy engine
loading.
(Every 100 hours)
Spark arrester
(Every 100 hours)
EF12000DE排対_GU1763 03.2.4 1:54 PM ページ26