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Yard Sport 400 problem


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Hi been cruising the boards trying to figure out whats wrong. I have a yard sport 400. (Hisun) the motor runs strong and starts right up. I can go in reverse just fine ans back up. But as soon as i go in Drive and put any load on the transmission it kicks out of gear. I have taken off the linkage and checked the cvt belt it looks fine. Any possible idea why or could any of you point me in the right direction? Cheers!!

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