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Need jetting advice Kehin carb swap PJ38mm to PWK 39.5

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I have a FMF pipe and silencer, VF3 reeds, Sthealy 13 ox flywheel weight.

I weigh 250 lbs

I ride the bike mostly in the sand at 4000 ft and 70+ degrees

thanks in advance!

spomey

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Just start rich and go from there. Maybe something like 48 or 50 pilot, clip #3 position, 185 main. If you were riding in the woods that would be rich but in sand and 250lbs if you are riding hard you may need it.

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hard to offer advice on jetting w/out knowing what size engine we're talking about here?

Is the OP riding a CR-500?

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Anyone know which slide would be used for a cr 500 application?

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Found it on cr 500 site. #6, which is stock for the pwk 38-40.

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Well what i have in my 87 cr500 is 60 pilot, 178 main , dgn needle 4th, 24/1 mix...works great for me in my 39.5

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not exactly related but I'll ask this here.

I have a Keihin PE 28mm on my 86' cr80 When I look up this carb most of the pictures show tubes all over the carb like this

Day-83952.jpg

mine doesn't have any tubes except for the fuel line. Should it?

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