02 carbed night train carb issues
Road Captain
Joined: Mar 2008
Posts: 712
Likes: 55
From: Punta Gorda, Florida
I have an 02 twin cam night train with stock cv carb. I'm running Vance and Hines big radius pipes with no baffle but I have torque cones in and a screamin eagle heavy breather intake kit. Bike ran awesome before I put the intake on, then I took it to my local harley dealer for a dynojet tune and when I picked it up it runs worse then when I dropped it off... They put a 200 main jet in it and a 45 slow jet. It has like a hesitation above 3k rpm and when I crack the throttle its real bad. They tell me that's the best it will get with my setup, I know better.
Since then I've totally rebuilt the carb, put a 88 sportster needle in it and tried all different kind of jets and it gets no better. Please someone help me out here. You can call or text me also at 443-206-4870 thanks
Since then I've totally rebuilt the carb, put a 88 sportster needle in it and tried all different kind of jets and it gets no better. Please someone help me out here. You can call or text me also at 443-206-4870 thanks
Road Captain
Joined: May 2011
Posts: 537
Likes: 120
From: DELMARVA
OK I'll play---did you check the float level? Set wrong would fit the description of ruining the main jet performance circuit which happens only above 3,000 rpm.
It is not your pipes or the air cleaner causing something as drastic as you describe. Pipes and cleaner should work great with a 190/45 and the stock needle with perhaps a shim or two.
I would rebuild the carb if it was me. Very possible the dealer screwed it up. Go look online and you will find a ton of information on how to deal with the CV. Great carb in my book. Have them on both my Harley and Triumph.
It is not your pipes or the air cleaner causing something as drastic as you describe. Pipes and cleaner should work great with a 190/45 and the stock needle with perhaps a shim or two.
I would rebuild the carb if it was me. Very possible the dealer screwed it up. Go look online and you will find a ton of information on how to deal with the CV. Great carb in my book. Have them on both my Harley and Triumph.
Thread Starter
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Intermediate
Joined: Apr 2013
Posts: 33
Likes: 0
From: Maryland
Yeah I just did rebuild my carb, the whole thing but didnt really make any differance. I don't know if the float levers has ever been messed with but I'm not sure how to check it or where it should be
Thread Starter
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Intermediate
Joined: Apr 2013
Posts: 33
Likes: 0
From: Maryland
Yeah I'm not sure about that idk what's going on with it. Low end is fine cruises just fine but when I crack on it and want to go go go it feels like there's not enough power to get up and run like it should
Road Warrior
Joined: Sep 2006
Posts: 1,570
Likes: 45
It sounds like its not transitioning right, from mid
Range to main jet. Id try going back to the stock needle and
See what happens. If not id lookin into fuel flow quality.
Then ignition sys.
Range to main jet. Id try going back to the stock needle and
See what happens. If not id lookin into fuel flow quality.
Then ignition sys.
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Road Warrior
Joined: Jun 2010
Posts: 1,784
Likes: 6
From: Boston
Did they install the new air cleaner?
Take it back and don't leave until they fix it. Its there fault if they installed it.
If they didn't install it, then we are where we are right now.