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Old December 28th, 2018, 12:10 PM   #3
jkv45
Rev Limiter
 
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Name: Jay
Location: WI
Join Date: Jul 2013

Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes

Posts: A lot.
MOTM - Jun '18, Oct '16
You don't need the bigger Pilot Jets with a stock airbox and pipe. We ran ours with pods and a leaky exhaust with the stock 38s.

We ran 108 Mains. 105s may be too much for you.

I would say you need to adjust the idle mixture with the Idle Mixture screws. With 42 Pilots you won't be very far out - https://faq.ninja250.org/wiki/How_do...dle_mixture%3F

You will always get a hesitation when cracking the throttle hard with CV carbs.

Shimming the needles will richen the midrange slightly - https://faq.ninja250.org/wiki/Washers_for_carb_needles

I'd also sync the carbs if you haven't.

This section may have some helpful info - https://faq.ninja250.org/wiki/Intake
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