2 of the best internet threads for 2 stroke information.

Posted below are 2 threads on the internet for arguably the best information on 2 stroke engine design and modification. Numerous people contribute and ask questions with most of them directed at Frits Overmars, Jan Thiel and "Wobbly". All three of which are probably the most experienced 2 stroke tuners around. They have had their hands on championship winning engines for 30+ years and you cant get better information anywhere.

Pit-lane.biz has over 4 threads about the Aprilia RSA 125 GP bike that Frits and Jan were involved with. The most successful 125 GP bike and CC for CC the most powerful 2 stroke around. Tons of specs, drawings and info are shared in these threads, along with numerous common misconceptions about making more power with 2 stroke engines.

This is just the 1st thread, 4 more are on the board in the 125GP section. The thread starts in French but quickly changes to posts in English so dont be discouraged when you start reading.

http://www.pit-lane.biz/t117-gp125-all-that-you-wanted-to-know-on-aprilia-rsa-125-and-more-by-mr-jan-thiel-and-mr-frits-overmars-part-1-locked

The other thread is on a New Zealand motorcycle racing forum. It began as a thread about "Bucket racing" and 2 stroke engine building. Overtime the 3 people mentioned about started to regularly contribute and there are 20,000+ pages of info to read through. Just like the thread above, you cant get better info from more experienced people on how to make your 2 stroke bike go faster!

https://www.kiwibiker.co.nz/forums/showthread.php/86554-ESE-s-works-engine-tuner