Jonsered cs2152 will a husky pot go on?

[frontier guy]

Hi all, I have just got hold of a Jonsered cs2152 and it has really low compression (60psi) and I have had the jug off and there is a huge gap between the piston and pot, its about 2mm. So i was thinking the first thing to change was the jug and piston but I cannot get hold of a jonsered part so I did some digging and it looks like some husky parts might fit and I can get a kit for not too much money so does anyone know if the kit fould fit? The part number from husky crossmatches to the gasket only so I have had no joy there!

the husky kit is for a 346xp.

 

Any ideas? and is there ment to be that much of a gap there? and if not how does a saw run to that point of wear?? I could push the piston back in with just nipping the rings in with my fingers!