hi ive had my 21 for harf a year now was inported and had the engine rebuilt and a few other bits done really like it

i de-restricted it and put some tyga cans on it run it in, giving it some for a bit all seemed good, took her out in the sun yesterday thought i would take it and do a plug chop so flat in 6gear up to 115 ish coming of the gas and i could feel it was going to nip up clutch in engine cut out got my dad to pick me up the top pot seized barrel looks ok piston second hand now looks like it got to hot oil feed ok

so here it is what pistons are better honda or wiseco ect, its a road bike with a owner that likes to ride fast and what main jets would you say it needs i think i would like to go bigger and lose a bit of power

and i dont no what pistons are in it no honda marking or any thing i could see

thanks guys and girls