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Old 05-07-2011, 05:53 PM   #1
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Unhappy Carb Mixture Screw Adjustment

To start off with this is what I have got so far....

08 500 Cat
27" Mud Wolf's
Roller weights lightened
Fixed plate mod
Belt snorkeled to 2"
Intake snorkeled to 2" keeping the factory airbox


I have read a lot about rejetting after snorkeling but wanted to try adjusting the mixture screw first to see if that would make a difference as it was a little sluggish on the bottom end. I played with the mixture and got it to feel better with the screw set to 2 1/2 turns out. The problem I ran into is that fuel started leaking out the overflow drain. Is this an indication that I should increase the size of the primary jet?

Any help would be appreciated.
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Old 05-08-2011, 02:21 PM   #2
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 Quote: Originally Posted by plumloco11 View Post
To start off with this is what I have got so far....

08 500 Cat
27" Mud Wolf's
Roller weights lightened
Fixed plate mod
Belt snorkeled to 2"
Intake snorkeled to 2" keeping the factory airbox


I have read a lot about rejetting after snorkeling but wanted to try adjusting the mixture screw first to see if that would make a difference as it was a little sluggish on the bottom end. I played with the mixture and got it to feel better with the screw set to 2 1/2 turns out. The problem I ran into is that fuel started leaking out the overflow drain. Is this an indication that I should increase the size of the primary jet?

Any help would be appreciated.
NO that is an indication of a float problem.Either dirty seat or not adjusted correctly.
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Old 05-08-2011, 08:50 PM   #3
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I'll check that.


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Old 05-08-2011, 10:59 PM   #4
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For future referance. the carb settings are located on a lable on the front body support under the left front fender.
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