Operation
20
While many additives available may reduce
deposits, Yamaha recommends the use of
Ring Free Fuel Additive, available from your
Yamaha dealer. Ring Free Fuel Additive
has repeatedly proven its ability to clean com-
bustion deposits from inside the engine, nota-
bly the critical piston-ring-land area, and fuel
system components. Follow product labeling
for use instructions.
EMU27403
Gasoline and oil mixing (100:1)
If equipped with a portable fuel tank
1. Pour oil into the portable fuel tank, and
then add gasoline.
2. Replace the fuel tank cap and close tight-
ly.
3. Shake the fuel tank to mix the fuel thor-
oughly.
4. Make sure that the oil and gasoline are
mixed.
If equipped with a built-in fuel tank
1. Pour oil into a clean fuel can, and then
add gasoline.
2. Replace the fuel can cap and close tight-
ly.
3. Shake the fuel can to mix the fuel thor-
oughly.
4. Make sure that the oil and gasoline are
mixed.
5. Pour the gasoline and oil mixture into the
built-in fuel tank.
CAUTION:
ECM00810
● Avoid using any oil other than the spec-
ified type.
● Use a thoroughly blended fuel-oil mix-
ture.
● If the mixture is not thoroughly mixed, or
if the mixing ratio is incorrect, the fol-
lowing problems could occur. Low oil
ratio: Lack of oil could cause major en-
gine trouble, such as piston seizure.
● High oil ratio: Too much oil could cause
fouled spark plugs, smoky exhaust, and
heavy carbon deposits.
NOTE:
If using a permanently installed tank, pour the
oil gradually as the gasoline is being added to
the tank.
Gasoline to engine oil
ratio
Break-in period See page 18
After break-in 100:1
1. Engine oil
2. Gasoline
U63V17E0.book Page 20 Thursday, February 26, 2004 11:52 AM
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