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-   -   How to tell if my CV carb is "jetted"? (https://www.hdforums.com/forum/evo/823303-how-to-tell-if-my-cv-carb-is-jetted.html)

zimm 11-13-2012 01:57 PM

How to tell if my CV carb is "jetted"?
 
Anyone know the stock jets for a '96 dyna?
How about what jetting "should it" be for stage 1?
Should I blow $150 for a dynojet kit?

My bike came with supertrapp slipons and screamn' eagle intake, I have no idea what the carb is set to. It does FOREVER before I can take the choke off before it runs right- makes me think it's a little lean.

1984_FXRT 11-13-2012 02:21 PM

The best thing to do w/a Dyno Jet kit is to leave it on the shelf.

Pull the float bowl, take out the jets and look at the numbers that are stamped on the jets. As a starting point (assuming everything else is stock in your engine) the idle jet should be a 45, your main jet should be a 180.

As to taking forever to warm up - that can indeed be indicative of a lean condition, and that condition could be caused by jetting, or it could be caused by a bit of a leak at the intake manifold seals.

zimm 11-13-2012 02:26 PM

Great thanks for the starting point. Since the bike is half apart, it's a great time to pull the jets and see what it has in it. No telling on a 16 year old bike with 45k miles and zero history known to me!

1984_FXRT 11-13-2012 03:31 PM


Originally Posted by zimm (Post 10550378)
Great thanks for the starting point. Since the bike is half apart, it's a great time to pull the jets and see what it has in it. No telling on a 16 year old bike with 45k miles and zero history known to me!

I'm fairly local - if ya run into something that gives ya a question, PM me.

HarleyReece 11-13-2012 09:02 PM

As stated, start by looking at the stamped numbers on the jets.

A real easy way to make an educated guess is to also see if the soft metal plug that covers the air mixture screw has been removed. Its located on the bottom of the carb, closer to the intake side. This is usually a good indication of someone playing around with the carb

Jim Kraft 11-13-2012 10:17 PM

45 and 180 are really good in my 99 EVO. It started out with a 42 and 175, but I have drag pipes and a K&N air cleaner. I use the enrichner to start and push it in after about 10 seconds when cold. I do have to use the throttle lock to keep it idling to warm it up.


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