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Originally Posted by Egor  Good job. I take all mine apart and have a look, but not that much attention. I finely found someone that knows about sharp edged rings on a two stroke. I found some seals that fit the engine perfectly, and the bearings are a must, mine were lumpy when turned. I do a lot of porting and I have a mod for the carb that works well. Oh I found a way to shut up the speaker affect of the right side cover, smear the inside with Silicone rubber, it will dampen the noise. I hope you enjoy this forum as much as I do. Have fun, Dave
PS: Let me know if you would like to do some porting. I would like to have someone enjoy the affects. |
Hey Dave,
I myself have re-timed the ports on one of my engines, along with a new intake manifold, walbro "pumper" carb , changed ignition timing and tuned pipe/silencer setup. The end result?-The power of a 1970's vintage 50cc dirtbike engine, with the lifespan of a yugo. In all seriousness the crankshaft is the weak link in the engine for power development, with the driveline short behind. The crankpin to crank-web fit isnt the greatest, and the materials very 1940's vintage (cheap 1940's). Also the piston being a long trunk design is too heavy for high RPM use. After that ordeal I stuck to just making them decently reliable with good runability, and have been having a ball with that!