1982 Yamaha 9.9 fuel mixture?
Posted: May 3rd, 2005, 3:47 pm
I need to know what ratio to mix the gas? Thanks, SF.
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1982 Yamaha 9.9 fuel mixture?
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Posted: May 3rd, 2005, 4:28 pm
Here is what a mechanic at a Yamaha dealer stated. Prior to 1985 use 50:1 after use 100:1 unless you are working your motor extremely hard all the time than 50:1 for any year.
Posted: May 3rd, 2005, 4:31 pm
Big Bend Marine in Perry is telling everybody 50:1 no matter the year or HP 
Posted: May 4th, 2005, 8:29 am
Yamaha's web site has owners manuals to 98' they say 25:1 during break in then 100:1. Personally I have an older Evenrude 6 horse that says 100:1 and I use 50:1 just to keeps things lubed good.