Matt@TYGA wrote:I've never seen an HRC CDI for the 150SP. And unless someone proves me wrong I don't think that they were available, and if they were it wasn't to the general public. AP Honda in Thailand would've had something for sure, but think hen's teeth.

HRC did make a special cylinder. I've only ever seen one but ever had one on a bike. They had one at Harc and it was fitted to one of the dude's bikes and he then got disqualified for cheating.

Setting up an ignition curve is not as straight forward as it sounds. It's quite quick and easy to get something that will fire and run, but to get the best without damaging the engine takes time and experience. A couple of degrees doesn't sound much but it can be the difference between a nail and a missile......and if the wrong way it'll turn the engine into an expensive door stop.

Hi, Guys im new in forum and i was a silent reader in here and find this interesting topic. You are right there is no HRC CDI for factory SP version,but both have a little different between CDI AP Thiland (RRW and SP) and Shindengen for SP production around the globe. Stock CDI that comes from Thailand can run up over 13k++ RPM and Shindengen can go less or more than 11k RPM that is in my experience. About HRC stuff there is a Piston and engine block that had been configure for HRC spec, even a gearbox they have. If you in Thailand you may find NSR hero Derek Anchowong because hes the reason my friend NSR can reach up to 240kmh on drag timer 2 years ago..

About the exhaust system if you guys cant find DBH or Tyga go find PDK it give you a sound of 2Stroke MotoGP ..

Correct me if Im wrong