LD100
50mm piston, 40mm stroke, 78.8 actual CCs. The dual plug head is too thin and actually warped from heat. Supposedly developers are to improve on this soon. As of now I have raised exhaust 2mm and widened both the exhaust and intake to match my header and carb manifold. I am using a scooter jog pipe expansion chamber exhaust system, a PZ20 carburator and run 11/36 gearing. I am unable to find a larger idle jet for the PZ20 so I'm forced to use stock. I upjetted the main jet to a 88. This setup is outputting 10,800 rpms and 51mph. The piston is blocking 25% of the intake port at BDC. Not sure how manufacturer decided to do this. It could be reduced by decking the jug or as I would prefer create a case reed with the G2 reed. I replaced the dual plug head with a CNC Smolik head which is superior for cooling and just looks bad ass. Besides the CDI was creating two weak sparks (ngkbh6s) instead of one strong spark when using single plug. Perhaps th...