Yamaha 40A Outboard Motor User Manual


 
EMU00018
GASOLINE (PETROL)
If knocking or pinging occurs, use a differ-
ent brand of gasoline or premium unlead-
ed fuel. If unleaded gasoline is not avail-
able, then leaded regular gasoline can be
used.
EMU00027
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing
methanol. Gasohol containing ethanol
can be used if ethanol content does not
exceed 10% and the fuel meets minimum
octane ratings. Gasohol containing
methanol is not recommended by Yama-
ha because it can cause fuel system dam-
age or engine performance problems.
E
1-11
Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of 86 (Pump
Octane Number) = (R+M)/2
EMU00858
ENGINE OIL
If the recommended engine oil is not
available, another 2-stroke engine oil with
a NMMA-certified TC-W3 rating may be
used.
Recommended engine oil:
YAMALUBE 2 STROKE OUTBOARD OIL
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