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Discussion Starter #1
The rev limiter hits way to early. I was told I needed a new cdi box so before I went and bought a new one I put a stock one on and see what happened. Rev limiter is still the same. Then I was told I needed a stage 3 cdi. I have an Hmf pipe and from what I know the jetting was tweaked. Would the stock cdi still not work with those modifications? Would the stage 3 cdi fix my problem?
 

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Truck Yea
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its not the cdi, its likely a jetting issue.

if you have an 04-05 an exhaust and open air box 180-185 main jet, 06+ 160-162 main jet. Also if the motor has work done to it, it will rev up much faster and you can generally fix that with gearing.
 

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Making HP ain’t free. . .
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Exactly, it is not the CDI, or more correctly, the ICM.

if you are hitting a false rev limit you are likely too rich on your main jetting.
 

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Discussion Starter #5
Thanks for the info. Also I was looking at some cdi’s and aren’t you able to program it to match the jetting?
 

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Truck Yea
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Thanks for the info. Also I was looking at some cdi’s and aren’t you able to program it to match the jetting?
No, you can buy a programmable CDI with several different curves, but since this is a carburetorated bike you can tune it really liek say a power commander does on a fuel injected bike. Your issue lies with jetting, take the bottom of the carb off and see what jets it has. Take pics as well and report back
 

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Discussion Starter #7
I agree. When I bought the bike the guy told me it is very easy to flood so the carb is probably the issue
 
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