883 to 1200 conversion

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Apr 13, 2006 | 10:46 PM

Crazyace

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883 to 1200 conversion

Do any of you guys know if I will have to change the stock CV carb on my '90 883 Sporty when I convert the top end to 1200? I would like to continue running my carb as I have it tuned perfectly for the bike as it is but with a bigger top end I'm thinking I may at least have to change out the jets. Anyway, any help on the subject would be greatly appreciated and thanks in advance.

Apr 14, 2006 | 12:39 AM

AZFlyingDiver

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RE: 883 to 1200 conversion

My guess is you'll have plenty of carb unless you plan to do some really heavy duty head porting (i.e., take things to Stage 2 or 3 in addition to doing 883-1200). It won't hurt to go to a bigger carb (say, Mikuni HSR42?) but not absolutely necessary... Good luck!

Apr 14, 2006 | 11:42 PM

Crazyace

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RE: 883 to 1200 conversion

That's good news! Thanks for the input Diver.

Apr 15, 2006 | 04:02 AM

skullcrusher

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RE: 883 to 1200 conversion

Just got back from the dealor about it. and AZflyingdiver is right. You dont need a new carb, but you do need to re-jet. and having a bigger carb does help.

Apr 15, 2006 | 11:11 AM

Crazyace

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RE: 883 to 1200 conversion

I kind of figured I would at least have to re-jet what I have, any advice on what size to go with when your at about 6500 ft.?
Thanks again guys!

Apr 15, 2006 | 10:49 PM

Big Cholla

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RE: 883 to 1200 conversion

Crazy: I run #48 low and # 180 high. Works for me. All engines are "one of a kind" so you will have to feel your way thru the carb tuning. ........... BC