HOW TO: PUCH e50 Engine top end rebuild/ overbore 70cc kit. Maxi sport project PT.3 *update* 

Swap tops in a couple hours and as simply as possible. That's what's going on here. Waiting for the Polini kit + 4 reeds + rito crank + new simonini style pipe for the hardcore rebuild, case matching, porting etc.. For now, the goal is to get the looks right, and ridability better, so a 70cc kit is in order. Simple.