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popping while accelerating

  • Thread starter Thread starter tbirdhd
  • Start date Start date
T

tbirdhd

Guest
82 1100G 34 cv just rebuilt . now it popping or backfires while accelerating ,but after RPMs get up some runs fine so far , any thoughts ??
 
might be lean on the pilot as well as the needle depending on the throttle position
 
throttle positions as soon as you start to raise the RPMs, after that it runs hard,

stock motor ,with pods, 4 in to 1 exhaust,
 
Put a bigger pilot jet in there. What size is in there now? Raise the needle if it hesitates on a roll on like when your going 55 mph and try to pass someone.
 
Last edited:
Ha, I misread the title to this post, thought it said, pooping while accelerating. Was saying to myself, dang that is one hell'va hard accelerating bike to make one poop! LMAO.
 
it poops as soon as you try to come off idle , jets are 127.5, are jet is 170, pilot jet are stock ill have to check and see what there are .
 
richen up the pilot mixture screws about a 1/4 turn and see if that is better chances are you can get it to go away with a little tuning and if really needed you may need to increase the pilot jets 1 size and then tune
 
ok now worse then ever , I put a DJ kit in as it saids to and now will hard start ,if starts will only run with chock pulled out ,
 
Starting and a DJ kit have nothing to do with each other. Something else is wrong.
 
ok still dont run, after i installed the DJ kit, before the kit it started right up ,idled fine , but popped when you went to raise the rpms ,after that run good , now bike will not start,even with chock pulled out , since the install i have takeing the carb apart 2 more times looking and checking ,

bike is a 82-1100g , 34cv carbs, main jets ,DJ138s , pilots are 40s, air jets .DJ160, air/fuel screw is 2 turns out ,
can any one tell me what i did wrong or right lol .,?? and what i should do to get bike running , ask me if you need to know something i have not told!!

Bill B
 
tbirdhd said:
ok still dont run, after i installed the DJ kit, before the kit it started right up ,idled fine , but popped when you went to raise the rpms ,after that run good , now bike will not start,even with chock pulled out , since the install i have takeing the carb apart 2 more times looking and checking ,

bike is a 82-1100g , 34cv carbs, main jets ,DJ138s , pilots are 40s, air jets .DJ160, air/fuel screw is 2 turns out ,
can any one tell me what i did wrong or right lol .,?? and what i should do to get bike running , ask me if you need to know something i have not told!!

Bill B
Click to expand...

Have you checked your rubber carb boots and orings for air leaks?
 
With the 138 DJ main you installed a sixteen valve kit in to an eight valve motor.
Get the correct DJ kit and it probably will run right.
Sixteen valve DJ kit 3133
Eight valve kit 3103
Bill
 
You probably do NOT need a jet kit if the rest is all stock. Usually, just the next size larger pilot, adjust fuel screw from 2-4 turns out. And maybe, raise the stock needle half a millimeter. Sometimes raising the float level a little helps. And are the pilot jet plugs still in or lost?
G
 
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