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Running on 2 of the 4

  • Thread starter Thread starter Lonerider1956
  • Start date Start date
L

Lonerider1956

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My 1981 GS550T has been sitting 3 years. Changed the fuel, Replaced the spark plugs, coils, and CDI....The pickup coil tests right to spec. The bike starts, but is only running on the 2 inboard cylinders. I know I am getting spark to all 4 cause I already tetsed that. Any body here have an idea for me to chase??

Thanks

Perry
 
After sitting 3 years, be surprised that the two inners are running somewhat. The slow speed circuits in these carbs get gummed up real easily (thanks ethanol) and don't respond to sprays or quickee approaches. Carb cleaning is in your future- do it properly or plan to do again. Have a look here...
http://www.mtsac.edu/~cliff/storage/gs/Mikuni_BS-CV_Carburetor_Rebuild_Tutorial.pdf

yes, it's very involved and time consuming

probably lots of maintenance issues calling- is this bike a recent acquisition? Or were you just occupied with other stuff?
 
Oh I been there once or twice. I guess I need to dig out the carb cleaner, and rubber gloves....Thanks...
 
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