lucky Posted October 3, 2010 Report Share Posted October 3, 2010 (edited) We have had a 250tyz trials for 9 months now,it had loads of power when we first got it ,,,,,,,,its suddenly gone flat over the last 2 trials ,& seems to get very hot,,,,sounds like a old ossa with asthma,,& sometimes sounds as though its pinking ,,tryed all the normal things .carb /air filter /exhaust ect ,,,,,found nothing ,,,,,,,,do yams suffer with ign probs ,,,, The bike has loads of compression ,starts in 3 or 4 kicks & ticks over ok,,,,,,, Any ideas would be greatly apprtiated ,thanks rich. Edited October 3, 2010 by lucky Quote Link to comment Share on other sites More sharing options...
feetupfun Posted October 3, 2010 Report Share Posted October 3, 2010 maybe cooling system problem - fan not running? radiator air path blocked? insufficient coolant quantity? Quote Link to comment Share on other sites More sharing options...
ormplus Posted October 3, 2010 Report Share Posted October 3, 2010 check woodruf key in flywheel ,possable timming fault. Quote Link to comment Share on other sites More sharing options...
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