2-stroker

Update: Currently the bike is having high RPM issues, it's not poor performance, the performance just isn't there. The power is available from idle and it grows quickly till about 4500 RPMs where the bike hits a wall, I can squeeze out another 500 or so RPMs but there is no power to be had. I'm new to bikes, and to working on motors in general, my dad and I adjusted the timing (we used only hand tools, we don't have a timing gun or a dwell meter), cleaned the points and set them, gapped the plugs, and a few other things but nothing has helped the top end. My current guesses are: 1) the timing is still way off, or 2) I really need to adjust the carburetor. I would REALLY like to get the bike back up and running good again, in the whole RPM range, not just the first half of it. Thanks for any help whatsoever!

Thanks a lot JimR! I'll lube the Advance/Retard unit and see if that gets rid of the poor low end power. Here I was just assuming the bike was like that because it was a two stroke. I hope you don't mind, but I'll probably end up messaging you sometime later about other random things, if I can't fix them myself. Thanks again!

Thank you very much! I wouldn't mind knowing what some of the basic problems there tend to be with this bike. As of right now, the bike starts and runs excellent, except that the right cylinder smokes a bit more than the left. Thanks again!

Thanks oldgitonabike, but I have tried that and there are slim pickings on finding parts. Ebay has a pretty wide selection, and as far as I can tell, most mechanical parts are universal with many other bikes of the time. I saw that bike before, and he did an AMAZING job, as for the pics, I hope this works.

Hello I just bought a 1972 Yamaha CS5, it is a fun little bike, but I know next to nothing about it. I would like to know if anybody knows anything about the bike, or if you don't, where would be a good place to start? Google, so far, has failed because Yamaha also made a CS5 synthesizer, and that makes searching a little slow. When I figure out how to post images I will. Thanks!