hi i have to replace my piston and want to know the standard size of this cylinder as i had it rebored. the piston the company supplied has this written on top "0.50" does this mean that its 0.50 above standard?. ive looked through yambits and theres so many i dont want to mess it up il post a link of which one i think it is.
Standard size bore on a 3mb barrel as stated is 56.00mm.
If you have had the barrel rebored then you will be usng the piston that was provided by the company who did the work. The bore is bored specific to the piston as every single piston will be slighlty different sizes and the clearances have to be worked out to the nth degree.
Use the piston they have supplied. It will probably be a mitaka with RIK rings. Do not use cheap pistons and make sure you follow the haynes manual when re fitting, remembering to oil the bore and rings before assembly.
Just out o curiousity, why do you need to know the size?
