Hello I am new to this page and this bike. I bought this bike with cylinder head and piston removed. I just installed a new piston, rings, rod bearing. also cleaned carb. The bike runs and starts right up. My problem is when I engage the clutch the bike bogs down. U can give it all the gas and it might start to move some but realy dont move. I donĀ“t know why the bike wont drive and stay running. seams like it has alot of power till u engage the clutch to get it to move. Hope someone can help me out thanks, Eddie