Re: slight backfire

[wforest]

Mine does the same. It did it when standard and it  does it now with the Dynojet Stage 7 Kit. I have tried richening the idle with the idle air screws but get the same result. as you have pointed out the cough seems to come from the front left side, but I'm not sure. After some thought, I imagined that the lost spark system could be playing tricks on us making false explosions, but I don't really know. Sometimes I wish Yamaha would come up  in this tech website and give us some explanation to what goes on. One thing I'm sure is that they are reading each and every message.   Regards, Charles ( [EMAIL PROTECTED] ) ----- Original Message ----- From: marius To: V-MAX TECH LIST Sent: Saturday, March 11, 2000 7:17 PM Subject: slight backfire I wondered if any of you guys ran in to this one ? I have a 92' v-boost version Max and it does the weirdest thing but only when it is cold for the first 5 min. or so it backfires slightly it seams like through the front left hand side carb. when idling if I take of it would stall for a sec. but as I said it is doing that once or twice until it worms up . thanks for any suggestions Marius