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Drz 400s Jetting Specs

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HI guys,

I need to jet a drz400s with yoshi full system, open airbox and k&n filter. Stock carb, right now we were at 155, but still lean. I would like to know what main jet and pilot I should get for him. thanks a lot.

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Not to hijack, but it sounds like you've got a similar setup to me.

I just picked up an '07 SM with the full yoshi system and K&N air filter. The airbox has not been modified yet.

The previous owner says it was jetted properly, but it pops on deceleration, which I thought was a sign of being lean. Yes? No?

I need to mod the airbox and pop off the carb to see what's in there.

Doctor-Z

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Thanks Eddie,

He said the pipe was installed by the dealer and jetting done there, so I had hoped it was okay.

It runs like a scalded dog, but I wondered about the pilot circuit based on the popping. I'll still follow the thread to see if the pilot circuit is done right.

Denver

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