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ok guys I was just given a 98 polaris xpress 300 2 weeks ago..it was locked up so i removed the head and found the top end needed to be rebuilt..I put in a new head because the old one was trashed..new jug and piston with new wrist pin and needle bearings..The atv started up on the first pull and idled out great...now heres the question..This thing has a roar in the bottom end Im not sure if this is normal for a 2stroke or not but i figured id ask..it runs great and we have been riding the hell out of it..Thanks for all your time and help!!!
 

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Welcome to the board!:med:
 

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get a video with good audio of the sound you're talking about.
 
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