Mystery Bogging  By  mgsiciliano (Read 426 times)

So I bought this 2008 Lancesport Charming for $150 and looked get it running...

I when I went to adjust the valves, I saw that the exhaust valve was not off, and upon pulling the valve case, found that the exhaust cap had broken off, and shredded the piston. I replaced the jug, piston, and the rocker arms ( with a 60cc kit ;D) ( now I'm in this scoot for total of $250)

I put it all back together and hit the starter, and it turned over twice and stuck... I tried a few more time before realizing that the crank shaft was bent!!!!!

After removing all of my prior work,and splitting the engine case, I successfully replaced the crankshaft.

I got the entire motor back together, and replaced the carb fuel filter, and petcock for good measure.

I started it, and it fires right up...idles like a champ.. But When I give it gas, it dies at 1/3 throttle...

WHAT I HAVE TRIED

NEW:CRANKSHAFT,PISTON,JUG,VALVEHEAD,ROCKER ARMS, CARB, FUEL FILTER, PETCOCK

I have adjusted the valves everywhere from .002 to .004,
adjusted the air screw on the carb..


I am out of ideas....

The only thing I can think is the main jet is too small for 60CC, but that seems unlikely...


PLEASE HELP!!