Vintage Dirt Bike Q & A

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PostPosted: Wed Jul 16, 2014 4:39 pm 
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Joined: Wed Jul 16, 2014 1:37 pm
Posts: 1
Hi Guys
New to the forum here, thought I would give it a try. I have a 73CR250 Elsinore I am racing in vintage motocross. I am currently running the 34mm Keihin carburetor on my bike and would like to switch out to the Mikuni carb. I understand that these are a little more tuner friendly and parts are easier to find.
I see a lot of guys are using the 36mm. Why use the 36 over the 34? Don’t I need new boots to run the 36 set up? Can anybody supply some jetting recommendations for both the 34 and 36 sizes? I am at 4000 ft. Maybe a good sources to find these carbs?
Thanks for any info!


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