just dont get it, started backfiring
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
i think you may be on to something
i opened up the check holes and no fuel dribbled out of them so i adjusted them higher about a week prior to the backfiring starting.
i adjusted them so that when you unscrew them fuel dribbles out of the holes.
but you are right though, before that there was no backfiring.
they are where i have always read that they should be though.
i opened up the check holes and no fuel dribbled out of them so i adjusted them higher about a week prior to the backfiring starting.
i adjusted them so that when you unscrew them fuel dribbles out of the holes.
but you are right though, before that there was no backfiring.
they are where i have always read that they should be though.
Intermediate
Joined: Mar 2009
Posts: 40
Likes: 0
i think you may be on to something
i opened up the check holes and no fuel dribbled out of them so i adjusted them higher about a week prior to the backfiring starting.
i adjusted them so that when you unscrew them fuel dribbles out of the holes.
but you are right though, before that there was no backfiring.
they are where i have always read that they should be though.
i opened up the check holes and no fuel dribbled out of them so i adjusted them higher about a week prior to the backfiring starting.
i adjusted them so that when you unscrew them fuel dribbles out of the holes.
but you are right though, before that there was no backfiring.
they are where i have always read that they should be though.
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
i think i have it
buddy of mine had one of those summit brand carbs.
wierd looking critter. anyway this carb a 750 double pumper went right on, fired up, idled and when ran didnt backfire once.
i think it was the carb afterall.
too bad my lt1 air cleaner wont fit over this thing correctly or id get one for myself. i guess a complete carb rebuild is in order
buddy of mine had one of those summit brand carbs.
wierd looking critter. anyway this carb a 750 double pumper went right on, fired up, idled and when ran didnt backfire once.
i think it was the carb afterall.
too bad my lt1 air cleaner wont fit over this thing correctly or id get one for myself. i guess a complete carb rebuild is in order
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
glad you sorted it out baxsom. i came on here to tell you my story after posting in here earlier. i have been following your thread because my car doesnt exactly backfire but when its cold all the way till it reaches 175 there is a small popping in the exhaust. kind of like a series of small backfires. if i stomp on it then it does cough but once its 175 and had bit of a run it is smooth and drives as it should. my carb is a 750 demon. much like you i got my other 750 demon and bolted it on. problem totally gone so at least we can both put the blame on our carbs. im going to read everyones advice on here once again who punted that it was a carb problem and then look into the carb a bit deeper.
Thread Starter
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
yeah i dont get it,
the summit brand carb was a mechanical secondary so maybe it just needed the extra fuel. who knows. it tells me that i can get it sorted out with the other carb but i think i am going to try a new one since the carb that is on it has been rebuilt more than a few times already.
the summit brand carb was a mechanical secondary so maybe it just needed the extra fuel. who knows. it tells me that i can get it sorted out with the other carb but i think i am going to try a new one since the carb that is on it has been rebuilt more than a few times already.
