coxy Posted June 21, 2009 Report Share Posted June 21, 2009 hi could some one tell me what the fuel/air mixture screw and the needle height position should be set at on a gas gas 250 2006 model with the standard dellorto carb as my bike seems to be smoking a hell of alot and the plug is black as hell when its took out. im running oil at 60ml for every 5 litres of fuel aswell. thanks alot coxy Quote Link to comment Share on other sites More sharing options...
pandelboy Posted June 22, 2009 Report Share Posted June 22, 2009 clip 2nd notch from bottom , mixture screw 3 to 3.5 turns out .... oil 70 cc of good synthetic in 5 litres of good fuel. if its that smoky could be a new set of rings required and repack exhaust and clean out front and middle pipe. Quote Link to comment Share on other sites More sharing options...
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