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KLX400R jetting question, burned!!!

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This week-end, I will be installing a full RS-3 YOSHI pipe on my 03 KLX400R

I also have a K&N air filter and removed snorkle

I will be using the stock OBDXP needle

I have 165,168,170 main jet available

Altitude here in Montréal is around 100 pi.

I was thinking of starting with 168 main, 5th groove and 2½ turn out.

Burned, what do you suggest as starting point.

Thanks

Yves

Yves

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Thanks, what is the stock main size?

I'm confused, my service manual said 165, my dealer say 162.5 and I've seen 142 somewhere else.

I assume it's 165

Thanks

Yves

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By the way, I've been told that the K&N is one of the worst air filter for our bikes. Wich filter do you consider the best, stock, uni?????

I will start with the 168 and 5th groove and then see the results, might be a bit rich in the middle but I'll see.

Thanks

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