TTR Motor mods, which first?

The piston is replaced only if the cylinder is bored out to a larger size.

Mike
If you want to go low-buck, do the air box, air filter cage mod. Then open up the exhaust. I just took off the spark arrester (I am going to make my own end piece). Just these simple mods woke up the little motor, come to think of it, they didnt cost anything except a little time and effort!!

The bike wheelies in 2nd gear now.

The flywheel mod is next.

Take Care, John

Another cheap mod is to have the flywheel machined down. That is one heavy flywheel for such a small bike. That made a BIG difference in mine. If you need more details on how to do that, I'll be glad to have my husband e-mail you.

Also, just to let you know, powroll sends you the 150 kit and then you have to go somewhere else to have the sleeve machined out. Sounds like you would be caught between two vendors if you had problems. Engines Only did an excellent job on my 150 kit, and everything is done by them. They are wonderful to deal with. I would recommend them highly.

With the 150 kit, I would recommend an aftermarket pipe. It makes a bigger difference with the 150. I sold my BBR pipe (too loud) and ordered Engines Only new pipe. I should receive it any day, and I will definitely let everyone know how that works out. But right now, I have the stock pipe back on, and boy, it doesn't have the snap it had with the BBR pipe.

Good luck, and when you get done, that little blue baby should rip!! :p

OOOPS! :confused: Just saw in the thread where you have already done flywheel. Sorry to be redundant.