So I got a new Puch the other day. It looks to be in great condition. After some small work I got it running - but it's not running so great.
It's quick as hell off the line, but he put a smaller front sprocket on there, so that would explain that. But it tops out at like 15mph. The carb it came with was absolutely disgusting, so I put my newports 12mm on it and it did the same thing. It has a 52 jet in there, but it feels like it's getting too much air. When you pull on the throttle it bogs, but if you just give it a little gas it shoots up to 15.
The cylinder and piston looked great. When I turn the flywheel, and lean up to the piston, I hear a very slight "psssssss" like some air is barely squeezing out. Is that normal?
Also, it's pretty loud. I dunno if it's bearings or what, but the engine is just plain loud. A dull "rraaahhhhh" noise.
Any help is appreciated!