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Jetting- wr450

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I ride at about 2500 to 3000 ft and my bike seemed lean. It does have the carb expansion kit because the carburetors on these

bikes are a joke and super choked up, but other than that the bike is stock. Im getting full fmf exhaust so i changed the jetting up

a little from 162 main To 168 and 45 pilot to a 47. I ran the bike around the neighborhood and it seemed like a brand new bike

before i even put exhaust On. Im wondering if this jetting setup will work fine with new exhaust or if it will be to lean again. I think

It should be okay but if anyone has any ideas let me know,

Thanks in advanced

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What is a carb expansion kit never heard of it.

 

No point in chaning jetting with the stock pipe, as it will run rich by the end of the day.

 

You must treat the intake/exhaust/fuel ratio together as a system.

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