CAN-AM (BRP) Discussions about CAN-AM ATVs.

Got my hmf pipe today

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Old May 20, 2003 | 04:08 PM
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Default Got my hmf pipe today

Anyone havve any takes on jetting. I live at 400 feet above sea level. Right now I have a modded end cap with 190 mains jet from a dyno jet kit and THe needle in the fourth clip , K and N filter in the box with the lid off. Ron woods rev limiter. Any suggestion any one. I feel like I should be close to the same jetting.
 
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Old May 20, 2003 | 04:22 PM
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Default Got my hmf pipe today

I have almost the same set up. You should be just about dead on. One way to check is take the bike for a good hard run and pull the plugs. If they are a nice tan color your right on. Black means your rich and white means your lean. Hope this helps.
 
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Old May 20, 2003 | 07:20 PM
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Default Got my hmf pipe today

Have you cut your carb spring?
 
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Old May 21, 2003 | 11:59 AM
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Default Got my hmf pipe today

Racer I have not cut my carb spring yet. How much to take off.
 
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Old May 21, 2003 | 12:14 PM
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Default Got my hmf pipe today

Originally posted by: racerx5x5
Have you cut your carb spring?
What does that do? I havent done this yet either? And which spring?
 
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Old May 21, 2003 | 12:29 PM
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Default Got my hmf pipe today

the spring that racer is refering to is the vacum slide spring on top of the carb that goes above your needle.
 
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Old May 21, 2003 | 12:52 PM
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Default Got my hmf pipe today

Originally posted by: fastone21
the spring that racer is refering to is the vacum slide spring on top of the carb that goes above your needle.

OK, so when you cut it what does it do? how much do you cut it off?
 
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Old May 21, 2003 | 01:28 PM
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Default Got my hmf pipe today

I know with the jet kit for the Rappy it comes with new springs that help performance, maybe you can find an aftermarket one instead of risking ruining the stock one? just a suggestion.
 
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Old May 21, 2003 | 04:37 PM
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Default Got my hmf pipe today

cut of about 2 coils. is normal. I just cut mines today and it works fine. I have heared more but I only cut 2 coils. A little at a time is what I suggest.
 
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