So after watching your videos I have now done the 24/24 carb everything u suggested, carb case too and moving onto stock cylinder porting and piston. Thanks a lot for all the videos.
u are welcome, glad to hear its usefull 🍻😃 document it, send me data when u are done and, lets put it online, so that we have more third Party reviews as in the beginning of this video
Following your guide I've got 74mph out of my bike. I switched to a Polini Box from Simonini and it's much better, more torque, power, and far quieter. I'm running the original piston (2.5mm rings), an si24 (drilled main jet bore to 2.5mm), and a sip fast flow tap. Cheers
Have you ever opened up the 'fake transfer ports' on a stock p200 cylinder? I was looking at your explanation in another video and got to thinking about it...made me curious. Also, how much do you think a mild tune like this would benefit (or not) from some degree of variable ignition timing? Basically everything you did in this video is *free* so just trying to see if you can justify the $$$ it would cost. Thanks!!
Also, I'm a little confused on your exhaust calculations. Standard bore on a p200 is 66.5mm. Your measurements of 40 (56.6%) and 42.8 (60%) are giving me bores of 70.67 and 71.3 respectively...where am I going wrong?
Everything brings power, step by step, i would do: 1) cyl timings 2) intake timings 3) exhaust porting 4) good cyl head 5) opening transfer ports but only up to a certain limit of course as the port area/size is small and the cyl in general an old tractor cyl 😉
Same applies for pinasco as its a alu copy of the original cyl and also has only 1 real port ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-J_60pI2_u7I.html
the 1port original and pinasco cyl compared to a real tuning cyl with 3 real ports, clearlly smaller port areas = only limited power achievable ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qMpMdMkkxYQ.html
@@FreakMoPed8 thanks anyway! And is it mandatory to increase the intake from carburator and also cut about 2mm of the crankshaft? I have the engine already close and don't know if I run the risk of blowing up the engine without giving the "right" flow of fuel to the cylinde and piston....thanks in advance man, so much appreciated! Regards from Spain
