Airbox de-restriction.

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Ihateyoubutler
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I've cut out the pipe thing from inside the airbox and also the restriction in the air scoop. I've got a 20mm carb with a bog standard casa 185 kit and standard exhaust. Is there a general rule of thumb of how much to increase jet sizes with this alteration done? The motor hasn't run yet, just got the carb to refurb so need to order a few bits.
Thanks.
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Doom Patrol
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I should think if you jetted it for a 200 initially you wouldn't be far off. Make sure you've got the right slide as well.
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