My '91 warrior runs fine, and idles fine,but when i punch the throttle all the way it bogs and dies. My friends '98 does the same thing. Can anyone help me?

 

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I think it a characteristic of Warriors, if not 4 strokes in general. I've just finished re-jetting my Warrior for riding here at my elev. & I opened up the pilot screw to 2 1/2 turns out to try to eliminate the stumble off idle. The nominal setting is 2 turns out. Also, the stock pilot jet is a 42.5 so if opening the pilot screw won't take care of it you might try one size fatter on your pilot jet. That's what I'm going to do after testing if it's necessary.