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GS1000G carb questions

marco

marco

Forum Newbie
I finally got my engine sorted from a previous owners complete balls up,
So now I know my GS was bored to 3,5mm oversize Giving a 1085cc capacity,
My question is to anyone who runs a big bore kit on their bike is what jet sizes are you running?
As far as I can tell mine has standard jets in the carbs, (112.5main jet) and it seem to run lean over 5000 revs,
I have a 4 into 1 pipe and standard airbox
Any info would be greatly appreciated
 
Seeing its bored over i would start a size over on the main. If its still lean go another size up. Are we to assume it starts and idles fine??
 
The stated year on the documents is 1984 but as far as I know they weren't in production by then
 
it does start and idles ok but is a bit rich on idle, i can play with the air screws and sort that out.
my biggest problem is getting jets. im over a hundred miles from the nearest bike shop so wanted to pick peoples brains on what they found works for them
 
so according to the GS1000G parts catalogue the main jet should be a115. I'll have to see if I can find anyone who sells online
 
Try z1 enterprises. Any of the online parts fiche places you can order from too.
 
Last edited:
send some emails to them explaining your location and ask about international shipping. Wont be cheap but when you need it you bite the bullet
 
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