07-11-2007, 10:06 PM
The best mixture at sea level, air/fuel is 14.7 to 1. leaner it goes in to a lean misfire, any richer and you dump raw fuel out the exhaust.
think of o2 molecules as basket balls the ideal ratio is still the same at altitude but the air density is less so you need less fuel because you have fewer of those o2 balls.
The object of the two cycle oil is to provide cylinder lube after combustion which means liquid that does not fully burn.
keep your oil/fuel ratios the same and turn your air/fuel mixture screw in to achieve a smooth idle.
20+ year mechanic
RF
[signature]
think of o2 molecules as basket balls the ideal ratio is still the same at altitude but the air density is less so you need less fuel because you have fewer of those o2 balls.
The object of the two cycle oil is to provide cylinder lube after combustion which means liquid that does not fully burn.
keep your oil/fuel ratios the same and turn your air/fuel mixture screw in to achieve a smooth idle.
20+ year mechanic
RF
[signature]