I agree with Doc, but if jets are not too much of a nuisance to find, it's worth playing with. Always better to err on the rich side, and you might even pick up some performance; who knows.
It's hard to tell, but it looks like a PZ27 carb. I'd be interested to see the jets. I just took mine down to the local bike shop and matched 'em up. FWIW, my local Yamaha dealer has Mikuni jets, while the Honda dealer has Keihin jets.
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Weldangrind
"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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