tytony Posted June 16, 2011 Report Share Posted June 16, 2011 Hi, just had my TY rebuilt, it would'nt run properly when I bought it so thought I would have the engine rebuilt. Had new bearings, rod, piston (not genuine, from ebay ?) points, condenser, Wes pipe, and stainless front pipe. Will run, just, starts first kick but wont rev. Pulling choke makes no difference. When I bought it the guy had put a new carb on it but its not the 525 Mikuni. Am I waisting my time until I get the right carb ? Cheers Quote Link to comment Share on other sites More sharing options...
g14gav Posted June 16, 2011 Report Share Posted June 16, 2011 Sounds like timing needs advancing... Move it slightly too far and it will pop and bang! Dead easy to try and costs nothing... Moving the points slightly to the right on the plate should do it - a hundredth of a mm .... Could be carb of course! Quote Link to comment Share on other sites More sharing options...
ducman Posted June 17, 2011 Report Share Posted June 17, 2011 Have a look in the airbox,if there a 2 rubber pipes on the bottom,throw them away.The engines do not rev if they are in the airbox. Chrs:Mike Quote Link to comment Share on other sites More sharing options...
jockster Posted June 17, 2011 Report Share Posted June 17, 2011 hi,did you replace the crank seals? my ty250 did the same thing starts first kick but wouldn't rev changed the seals now perfect Quote Link to comment Share on other sites More sharing options...
goudrons Posted June 26, 2011 Report Share Posted June 26, 2011 Does seem to point to carb, what with it being the same before as after the rebuild and the none stock carb being fitted. First check the timing though. Contact me if you'd like to try a stock carb, I have one and I'm in London. Quote Link to comment Share on other sites More sharing options...
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