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Discussion Starter #1
if i jet the pred to a 170, should i change the needle? why or why not? a buddy of mine just bought a dyno jet kit and put it in his pred and it came with a needle. i have jetted a two z400's and numerous 400ex's for friends and not changed the needle (just bought a couple jets). my buddy that just jetted his pred, said the needle that came with the kit was longer. is there a good reason or is dyno jet just putting more in the package to make you feel better?
if you can keep the stock needle, what setting would i use?
 
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