I have a suzuki eiger LT-A400/F,can the stock jug be bored 10 or 20 over?Or would it be better to just replace it?

 

I had mine bored 20 over (after the cylinder walls got scratched by sinking in a mud hole). Didn't notice any real power improvements. Went back later (as it was still burning oil) and put in a sleeve - back to a stock piston size now with no problems.

 

Thanks for the info.The dealership told me the jug was scored bad,i went and picked it up,came home and honed it out and she looks like new.

 

If the cyl was scored that bad then honing will make the cyl too big. better check the clearances.
I don't see why boring and a new piston wouldn't work. I did it a cpl times on my old Suz 4x4.