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jr 50

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we have a jr 50.....we have no clue what year it is....def in the 80s though. Well this bike starts up in 2 kicks and runs fine. WHen u put it into gear and give it gas it putts along really slow. Then you put someone on it and it just stays there. My dad and I cleaned out the carb and found nothing. It has a new plug and everything. What could it be? lack of compression? We really want to get this thing going to we will rebuild the top end if we have to..Thanks guys

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you might also pull both the pipe and intake manifold to look and see if the restrictor washers are still installed.. they usually get removed first thing,cuz the bike will barely move with them installed.... but maybe?!

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I just picked up an 03 and have the same problem. The thing starts up and runs great. It will get going with my son on it on cement. In the grass it wont get moving. I am going to remove the restrictor washers this weekend to see if it helps. This info doesnt help at all but your not alone.

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