I tried the search feat. - Back firing

[ohgoodtimes]

Ok I could b worried over nothing but i just wanted to try to find some answers. So my 83 750e has a 4-1 yoshi exhaust and stock filter, and i am not sure about the jetting at this point, (this is my guess to the solution to the problem). Anyways the bike idles fine and drive with a good power curve no stumble no real sudden jerks, but when i am deaccelerating over 4k the bike likes to let up some popping noise, not too loud but obviously enough to cause me some concern. So question lies here is it

a) the pipe i have on just has that effect
b) I am running to rich/lean
c) Another problem possibly paired with one of the above.

Like I said I tried the Search feature but most the searchs came up with back rather than back firing.

Thank you in advance for your help

[80GS750]

well, the pipe your using with stock airbox and stock carb settings is going to lean out the bike just a bit....

the popping on decel is from a lean condition...

the best thing to do is move the needles one half or one full position richer and see if it stops..

lean makes more power, but is bad for your engine, it will run hotter and can lead to holing pistons if it gets too hot... this is the extreme of that effect though..

your stock jets may be ok with this pipe, it just depends on if you can richen it up a little bit with the stock needles...

[BassCliff]

Hi Mr. ohgoodtimes,

I found this thread using the advanced search feature, searching only the Tech section for "popping" + "decelaration".

http://www.thegsresources.com/_forum/showthread.php?t=125441

There are 42 other results when searching for those terms together in the Tech section.

Basically, you may be a little lean. Perhaps a slight adjustment in your mixture screws or taking care of any air leaks in the intake system, such as sealing up your airbox, may be all that's necessary. Keep us informed.

Thank you for your indulgence,

BassCliff

[ohgoodtimes]

aw, i see how the search works, i was using the "" to try to be more specific, but i will enter words seperately. And i will go through and try to rihen things up thing you very much you guys

[80GS750]

i would seal up the airbox first, thats probably gonna help a lot if it has leaks at all....

[chef1366]

Come out on the idle mixture screws. (richen) If four turns our and still popping go up one on the pilot jet.
And seal airbox.