Yamaha 70A Outboard Motor User Manual


 
E
1-11
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
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
Yamaha because it can cause fuel system
damage or engine performance prob-
lems.
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
Recommended gasoline:
Regular unleaded gasoline with
a minimum octane rating of 86
(Pump Octane Number) = (R+M)/2
6H3-9-1L 1 4/26/01 5:23 PM Page 16