PX tuning

[dazza]

I wonder if any of you experts could help, ive bought a px125 basically for more everyday use as my et3 is more for nice days. I must say that the ride isnt as much fun as my smallframe and although it isnt slow it isnt particularly quick either. I want a stainless sports exhaust and eventually renew the piston and barrel. what kit would you recomend for reliability and what is the maximum cc i can go up to without having to replace all the bottom end. Ideally I would like to leave the crank, gearing and clutch as it is and just replace the piston and barrel. Any help you can give would be much appreciated, cheers Daz

[ets]

The best compromise is a Polini cylinder, 177cc, if you set it well will perform nearly like a 200 even p'n'p and keeping standard carb and exhaust, just a change of jet and timing could do the trick and it's a pretty reliable configuration.
The DR, also 177cc is somewhat useless as it gives only a bit more torque but no real gain at top end. Very reliable though.

[dazza]

Cheers for that...... The polini as you say seems to be a good choice. Thanks again...Daz

[225worb]

the 177 and 180 kits are realiable and cheap and do give a little more performance ,,,The malossi 166 is a good bolt on ..it more expensive but even better performance , which ever way you go try and source a p200 carb 24mm and a different pipe and thatll do the job .....at a reasonble price ..

[silverfiesta]

Yep get the mollossi and tune further, match cases to cylinder, get a better carb 28mm and match inlet, better exhaust something like PM or JL and again match exhaust on cylinder to exhaust and jobs a goodun.