Difference in '00 400 and '03 2 stroke engines
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My '03 Trailblazer 400 won't accept the Aaen or HPD exhaust, the head pipe on '03 to large. The main jet was a 240 and needle raised all the way stock. Lower clutch rpm engagement than my '00 had and friends '02 400 Scramble. The exhaust pipe inside is about 1/2 inch larger than the other years. This quad ran a lot better than the '00-'02 models. Anyone know all the changes for '03 400 2-stroke engines.
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KimSJoh
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
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07-18-2015 07:20 PM
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