pre mix for 115 hp yamaha 87

Blue Streaker · Jul 2, 2006

oil injection has been disconected.

what should I be mixing the oil gas ratio

100:1 ?

I ve been mixing 50:1 to be safe but fouls plugs

WillyBWright · Jul 3, 2006

Re: pre mix for 115 hp yamaha 87

Stay safe. 50:1 is fine. 100:1 is too lean. You might try 60:1 for fouling. Or burn hotter plugs.

Blue Streaker · Jul 3, 2006

Re: pre mix for 115 hp yamaha 87

WillyBWright said:
Stay safe. 50:1 is fine. 100:1 is too lean. You might try 60:1 for fouling. Or burn hotter plugs.

I ll try it at 60 : 1 to be safe Dont need to be rebuilding
that motor just yet. Plugs are already a # 8 so there pretty hot thanks for the help

deejaycee_2000 · Jul 4, 2006

Re: pre mix for 115 hp yamaha 87

50:1 should be fine, make sure that your spark plug's gaps are set 100% ... makes a hell of a difference ...