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1980 gs850g bogging at 4K

  • Thread starter Thread starter jlyon40
  • Start date Start date
J

jlyon40

Guest
Hi my dad has an 80? 850g and it has started to bog down when it hit around 4-5k RPM. At first it only bogged down when he was driving but now it?s doing it when in neutral as well. We went through all 4 carburetors and cleaned them out and all the pilots were clear and everything. It?s like the bike isn?t getting enough gas. Could it be something else in the carbs is sticking or not sliding? Thanks
 
How's the airbox and air filter?
 
"It?s like the bike isn?t getting enough gas"

suspect the petcock...hopefully your model does not have the deluxe leverless version
 
I think we?ve narrowed it down to being a carb issue. The air box and filter are both good and we checked to make sure it wasn?t the peacock by putting the tank from my bike on and it was still bogging. Going to have to go through the carbs very thoroughly and find out what?s going on there. Thanks for all the input.
 
jlyon40 said:
I think we?ve narrowed it down to being a carb issue. The air box and filter are both good and we checked to make sure it wasn?t the peacock by putting the tank from my bike on and it was still bogging. Going to have to go through the carbs very thoroughly and find out what?s going on there. Thanks for all the input.
Click to expand...

Have you verified that the advance mechanism isn't stuck on retard? It advances at about 4,000......
 
jlyon40 said:
Hi my dad has an 80’ 850g and it has started to bog down when it hit around 4-5k RPM. At first it only bogged down when he was driving but now it’s doing it when in neutral as well. We went through all 4 carburetors and cleaned them out and all the pilots were clear and everything. It’s like the bike isn’t getting enough gas. Could it be something else in the carbs is sticking or not sliding? Thanks
Click to expand...

Stock intake and exhaust? Stock jetting? What throttle setting(s) is it happening at? The RPM usually isn't as important as the throttle setting as that determines which carb circuit you are running on. Will it pull through the bog if you give it full throttle? What happens if you hit the choke while it is bogging?


Mark
 
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