LC125 Main Jet size

[wonkywheel]

Standard unresticted exhaust- 12A carb 195 main jet- that set up was for the restricted exhaust.
What size jet would you you go up to? 200/210?
I dont fancy holing a new piston.
Cheers

[looey]

You could go up a couple of sizes to play safe and see how it goes with plug colour etc.

It should be fine on standard 12A jetting with a standard unrestricted exhaust.

Back in the day when they were new, we used to stick an Allspeed or Micron on and just raise the needle one clip (clip one notch nearer the pointy end).