doctorbeta Posted February 24, 2010 Report Share Posted February 24, 2010 Now then! Just an enquiry to see if anyone can recommend carb settings for my 250 Evo 2009. Just get the feeling its a bit 'fluffy' off the throttle stop, just as the slide is lifting. It feels like I have to give it a few more revs to ensure a clean getaway and to stop it stalling at slow speed/low revs/tickover. On the recommendation of Lampkins its now running a BP5ES plug and is a bit better but I've had to screw in the idle screw to keep it popping cleanly. I've tinkered with the airscrew +/- 1/4 turn from the recommended 11/2 turns out and can sometimes clean up the tickover with that. She's on super unleaded with 1.5% 2t. Lampkins suggested trying a 45 pilot instead of 48? Help!! Quote Link to comment Share on other sites More sharing options...
hillary Posted February 24, 2010 Report Share Posted February 24, 2010 Drop the needle one notch, it improved mine significantly. Quote Link to comment Share on other sites More sharing options...
nzralphy Posted February 25, 2010 Report Share Posted February 25, 2010 Fluffy tends to be lean. Blubbery or 'four stroking' tends to be rich. I'd say that your mixture could be a bit lean because of the high fuel:oil. Try running the bike at 70:1 and if the problem persists try raising the needle a notch (lower the clip). Tell us how you get on. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.