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GS650GL - Getting carbs back to baseline from mismatched jets

V

vonmule

Forum Newbie
I've got a new-to-me '81 GS650GL. Runs...sorta. Hard to start, high idle, bogs down, but it also didn't have an air filter installed. I've got an Uni air filter now and it's got the original airbox and pipes, so I've got the luxury of returning to stock carb specs. Looks like the previous owner used an Amazon rebuild kit for some of the parts and the original Mikuni jets aren't quite right either. At this point I've completely disassembled the carbs and cleaned them.

My questions: Should I put it all back together and see if I can get it running? Is it a waste of time, given that the amazon needle jet has half as many bleed holes as its supposed to and the genuine Mikuni jets are odd? Is it even capable of running well, or should I open my wallet and start buying Mikuni jets per the stock spec? I'm leaning toward getting the correct needle jets ($75 for 4 from the netherlands) and pilot jets. Thoughts?

Stock
Main: 110
Pilot: 42.5
Pilot Air: 160
Needle Jet: Y-7
Jet Needle: 5C45

Current
Main: 112.5 (Mikuni)
Pilot: Unknown (Amazon)
Pilot Air: 155 (Mikuni)
Needle Jet: Unknown (Amazon)
Jet Needle: 5C45 (Mikuni)


Thanks
 
I would return to stock and use genuine Mikuni parts and if forced to use aftermarket then Keyster if they cover your model.
All other Ebay and Amazon "kits" should be avoided like the covid..
Money spent on the correct parts now is going to save you a bunch further down the line.
 
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