Even the well known quality brand like Tobika's cylinder block also has the same noisier problem ??

By the way I willing to spend around RM1K if necessary to reborn my MR1 with everything DIY myself. If everything goes smooth and the bike work excellently for at least another 5 yrs then I say it is well worth.

Modenas apa nak hairan, kualiti ke laut, for reliable, only Honda & Yamaha still acceptable. Others good luck.

I wonder if brand like Tobaki or Wstandard make better quality racing block consider they usually come with much higher price.

What do you mean by keep it stock ?? Don't change the block but only replace the piston ?? Unfortunately I pretty sure my block is seriously damage due to the vibrate and sound it make if I apply like 50% throttle.

u mean piston to wall slap?

if thats what u mean, then.... get ready for THIS

not sure about kapchai applications... or even the type of piston (ie what material used) especially for all these local brands.

but in  modified cars, the higher piston to wall clearance is due to some forged pistons will expand more when heated...but they are also quite strong. downside is when cold, before it expands, u get piston to wall slap. might be the reason why the bikes setup is noisier than stock.