Originally Posted by Valleyrider
Not going to get in a pissing match here. That being said, there are "If's" and "May's" in your advice given here. We all know that diagnostics online fall short of hands on first hand experience.
The suggestions that Scootern29, Buls4evr and I have made are based on our experience with 2 stroke motors. You bring up some good points and testing procedures, but a 40 year old TC/TS100 could use a little freshening up with new seals. If they aren't leaking when tested today, they surely will be leaking in the near future given the properties of todays gas....
Careful twinshocker is the pissing match king
I agree with ya Willie . My ty175 sat for 20+ years after a little service it ran great. About 40miles into its first real trail ride in decades the flywheel side seal started sucking air and melted here down. About a $125 mistake. Next old bike is getting seals ASAP . It was so easy to replace I was pissed I didn't do it right off the bat.