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BACKFIRES!!!

jmeier19812010-08-15 07:18:51 +0000 #1
Ok guys I need some advice I am small engines illiterate and am having some serious backfire problems with my 05 BF 750. Its has a slight miss at idle or when its slighty idled up a bit and when your runnging down the trail and just let off the throttle all at once it backfires EVERYTIME. Sometimes through the carbs but mostly through the exhaust. And sometimes when first starting to excelerate from a stop it hesitates, and or misses. Ive only had the machine for about 3 weeks and put about 250miles on it and the backfires seem to have gotten slightly worse the only time it doesnt do it while slowing down is if I gradually let the throttle out till it slows to a stop. Its got ab out 1900miles on it.
hondarecoveryman2010-08-15 07:21:53 +0000 #2
sounds like its lean to me , fatten up the air/fuel ratio and it should quit..... Do you have any mods?
08GreenBrute2010-08-15 07:48:03 +0000 #3
also check the rubber boots to the carbs and air box, they dryrot and let air in which will cause some backfires also. but it also sounds a little lean
phreebsd2010-08-15 08:02:01 +0000 #4
Good call on carb boots being a 2005 model.

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