thank you friends
the thread is very useful but is also too technical

for my purpose. I don't want to change too much of the characteristics of the engine.
I only want to copy
I will do some mods and then i will show some pictures on this thread.
Don't expect nothing before 2-3 weeks
P.S. IN THE MEANWHILE: IF SOMEONE

HAS SOME PICTURES OF CRANKSHAFT OR SLEEVE OR OTHER PIECES OF NSR12S3 OR SIMILAR ENGINES MODIFIED.....PLEASE SEND ME THE PHOTOS OR PUT THEM ON THIS THREAD....
UNTIL.....
IT WILL BE.....
TOO LATE