'10 Sportsman 550 clunk
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Can't be 100% certain,but sounds like you are describing the old drive train "lash", that is the clunking noise because of the slack from the driven clutch to the transmission to the drive shafts. Its more prominent in high torque machines such as the 700 800 twins and even more so in the new 550 and 850 atvs. OPT
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2008, 2010, 550, acceleration, atv, clunk, clunking, likes, noise, polaris, reverse, sound, sportsman, sportsmans, transmission
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