px kit or tune

[ducksta]

hi guys just got a px 125 engine just looking for a cheap up grade not wanting full on racing spec so kit or tune original i have a 24mm carb and a simmonii exhaust to use any ideas welcome

[Jack221]

If you don't want to spend anything at all, just make a 2mm base packer from a piece of aluminium, sand the 2mm lip off the standard 125 head and raise the exhaust port 1mm across its width with a dremel. With the 24mm carb and the Simonini it will go great!
And if you do mess it up it's no big deal as you can just put the 125 barrel on the shelf and get a 166 kit!

[ducksta]

does anybody do the base gaskets? like the idea

[shocky]

Got a newly rebored dr kit new piston etc £100 inc postage

[goldeneye]

Got a newly rebored dr kit new piston etc £100 inc postage

this, and up gear it a bit. when ran in they are pretty bullet proof.get it honed out first, they are tight from new.

[Jack221]

does anybody do the base gaskets? like the idea

You can buy a 1.5 packer for a 60mm crank and top it up with about few base gaskets. I just drill/saw/file my own out of sheet aluminium.