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36 mm UPP crossovers & jetting

1073 Views 5 Replies 4 Participants Last post by  bubbasoffroad2
Nothing else has changed on the bike except the addition of the crossover intakes.

What has been your experience with your jetting? How did it change your main and pilot jets, if any?
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I had to go to #42 pilots and went from 182F/185R jets to jets drilled with a #43 drill bit. I was told by VFJ to go with that since I am still running the stock air filter and it seems to run very well. I think he normally suggests 3/32" drilled for most people with the 12-hole mod, TwinAir PowerFlow, and Muzzy exhaust that install the UPP intakes.
I think the bigger carbs use smaller mains, Enigma, get a hold of Badhear. He has 36's with UPP's.
Sorry, I missed the 36mm carb part.
I think the bigger carbs use smaller mains, Enigma, get a hold of Badhear. He has 36's with UPP's.

Thats what confused me. I had to go down on the mains. It wouldn't idle then I figured out it was just flooding out. Still have a stumble with a stab of the throttle. Fine if you roll it on. I had 42 pilots in. Went to 45s and it didnt seem to change much at all.

I gotta go to the cycle shop and get some 40s
You want to bowwow my LC-1 to get it dialed in i won't need it for a while and i will see if i have some 40's here
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