New Carb-Should I or not?
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Road Captain
Joined: Oct 2007
Posts: 516
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From: Ontario, Canada home of the TAX YOU TO DEATH LIBERALS
New Carb-Should I or not?
Just did a overhaul on my stock carb on my 84 FXST. After a thorough de-gunking and blow job + a carb kit, it now runs good. One of my buds suggested going to a CV instead, said I will get much better performance. Anybody been through this? If I change, what should I consider? The motor is stock with the exception of shaved heads and drag pipes.
Seasoned HDF Member
Joined: Dec 2004
Posts: 11,068
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From: Texas! Ya mean there's someplace else?
RE: New Carb-Should I or not?
Sounds like it's "leave well enough alone" time to me. With pretty much a stock motor the CV isn't going to do much in the way of performance. Might start a little easier, but not easier enough to cover the cost and hassle.
Road Master
Joined: Sep 2006
Posts: 1,121
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From: Huntersville, NC
RE: New Carb-Should I or not?
The Keihin butterfly on my '84 wasn't worth squat. No matter what I did to it the bike ran bad. Changed it to a Super E and all is well.
If you can get a good cheap CV I'd run with it. I'm sure it has to be an improvement over the stock Keihin.
If you can get a good cheap CV I'd run with it. I'm sure it has to be an improvement over the stock Keihin.
Road Master
Joined: Jun 2007
Posts: 842
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From: New Hartford CT
RE: New Carb-Should I or not?
I replaced my ('89) Keihin butterfly and stock air cleaner with a CV and SE air cleaner, and it was the best thingI could have done. The difference was like night and day. Don't think twice -- just start looking for a good used CV.
Road Master
Joined: Aug 2007
Posts: 942
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From: Grew up in Texas, moved to AZ
RE: New Carb-Should I or not?
No doubt, a CV is better than the butterfly. You would need new intakemanifold, filter, and cover, because the ones of your 84 won't work. I bought a set from one of the guys here and it's working out real good.
Second to that and a little/lot more cost is an S&S Super E or Mikuni HSR42.
Second to that and a little/lot more cost is an S&S Super E or Mikuni HSR42.
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Road Captain
Joined: Oct 2007
Posts: 516
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From: Ontario, Canada home of the TAX YOU TO DEATH LIBERALS
RE: New Carb-Should I or not?
Thanks for the imput guys. The insight is most appreciated. Due to the lousy weather we are about to embark on for the next 5-6 months up here in Ontario it gives me time to find a good replacement and be ready for next season. Afraid the "BLACK QUEEN" will have to be mothballed @ the end of this month. Ride Safe
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Ultimate HDF Member
Joined: Mar 2007
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RE: New Carb-Should I or not?
I got to agree with everyone about the cv,I did it and am very pleased with it.starts easier,responce is a lot better,and milage improved buy about 5 miles per.also u got time look for stock intake off 91 up evo for cv intake ,i got lucky an bought one for 5 bucks off indie back shelf. Nightrider.com has good info on modifing an tuning.the cv has got to be one of the easiest ones to tinker with an get right.
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