Bent48 Posted September 4 Report Share Posted September 4 Recently bought a used 2022 txt250. Was running fine. Came with a flywheel weight and wanted to try it without it. After removing it but putting it back on, because I didn't have the right bolt for the flywheel without the weight, it started but only ran for a minute and couldn't get it restarted. Later in the day, tried again and started once but only briefly ran before backfiring or making some popping sound and now won't start. Now occasionally when trying to start it it will make a loud exhaust popping sound but will not start. Could it be related to having removed the flywheel and messing something up in the process or something else unrelated? Any advice on where to start is much appreciated. Quote Link to comment Share on other sites More sharing options...
kurtas Posted September 4 Report Share Posted September 4 Remove the flywheel and check the status of the woodruff key and also the mating surfaces of the taper. Sounds like the flywheel has spun on the shaft and consequently now your timing is incorrect. Quote Link to comment Share on other sites More sharing options...
F5Dave Posted September 5 Report Share Posted September 5 (edited) 100% agree with above. Have a look with flywheel off (you may need a puller). If there is any scoring you should lap the surfaces with fine valve grinding paste, tyen clean, then fit Correct size woodruff key. (Only stick out a little). Edited September 5 by F5Dave Quote Link to comment Share on other sites More sharing options...
Bent48 Posted September 5 Author Report Share Posted September 5 OK, thanks I will check that and hopefully that's it. Quote Link to comment Share on other sites More sharing options...
Bent48 Posted September 21 Author Report Share Posted September 21 That fixed it. The woodruff key broke, I must not have tighten the flywheel bolt tight enough. Thanks again. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.