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1980 GS750 Bogging Down

  • Thread starter Thread starter stuart839
  • Start date Start date
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stuart839

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I have just aquired a 1980 GS 750 G it runs fine to about 5500 revs then justs bogs down and wont pull. I tried cleaning and balancing the carbs and replaced the main jets with what I believe to be the corrrect ones 105's, it was fitted with 115's when I got it.
If I remove the airbox it will run great and smooth right through to the red line. The bike is a Japanese import shaft drive with only 21,600 kilometers on the clock
 
have you tried to change your air filter? if it runs just fine when you take off your airbox this may be your problem.
 
sorry yes I tried fiting a new air filter and it made no difference, it still bogs down even with an empty airbox and the end panels removed, it only runs fine with no airbox fitted
 
sounds like your getting too much fuel.... try to lean it out a little bit more or just buy some pods for those carbs, they will let a lot more air in, maybe that will work.....
 
thanks when I cleaned the carbs I checked the needle settings and they were on three as per spec, I'll try resetting them to two and or one to see if that as any effect, when I get some more time.
 
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