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View Full Version : Put in my 450r carb, now it idles crazy



flauge
01-07-2007, 06:19 PM
Just like the title says, it idles real rough, sometimes it'll shut off. I feather the gas just above idle and it'll cough and chuff out the intake, then when i let off it'll come back to idle real slow and popand backfire like crazy. It cant be too rich i dont think. ive got a 172k main and a 45k pilot in it now, shoot i went to a 42, and even down to a 38. It still did the same thing.
Could it be an air leak?? The hot start hole is blocked with a threaded cap so im good there. What else could it be??
thanks..