Dcreigh Posted June 6, 2011 Share Posted June 6, 2011 Hi guys I need help, I have just changed my chain and sprockets on my dragstar 125 ,but now when it gets past 30 mph it starts to make a whirring noise , I also switched to a 520 kit Link to comment Share on other sites More sharing options...
barkwindjammer Posted June 6, 2011 Share Posted June 6, 2011 There's a handy little video Here Link to comment Share on other sites More sharing options...
Paulwhite Posted June 6, 2011 Share Posted June 6, 2011 Hi guys I need help, I have just changed my chain and sprockets on my dragstar 125 ,but now when it gets past 30 mph it starts to make a whirring noise , I also switched to a 520 kit loosen the chain you need about 2 inch of play in it. any more and its too loose any less and its going to whine. Link to comment Share on other sites More sharing options...
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