April 29, 201511 yr Hi there Just finishing rebuild on the bike, and it fires up but holding the throttle on full only just gets it to tick over and wont rev out. Checked needle is moving with the slide - it is ! I did get it to clear and rev but then had a fluff and backfire. starting up again and it just ticks over holding the throttle pegged. Timing ???? As always ...........was OK when I took it apart !! Any help appreciated cheers John Edited April 29, 201511 yr by john b
April 30, 201511 yr Piston in backwards. Air box Clear, Remove silencer, Pipe? Carb clean? Vent on tank.
July 31, 201511 yr The very early TX250's had smaller diameter crank shaft seals on the flywheel side. 21mm rather than 22mm (or something like that)
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