1997 Yamaha 200 SWS2 block damage-repair

[myredchevys]

Lost the piston pin bearing (top port piston) on powerhead- Planning on boring or resleeving the cylinder-got gouged in a few areas from the needle bearing rollers - I noticed a small hole in the bottom of the block -See Pic- just wondering if not repaired or filled will it effect compression-what would be best coarse to repair-thanks

 

[racerone]

Is the block all apart ?------Is that hole in other cylinders ?-----More pictures ?

 

[myredchevys]

Just lost the one cylinder -the other cylinders are undamaged 120psi compression- it looks like a needle from the piston pin bearing got smashed into the block by bottom of piston

 

[racerone]

So you have not taken the block apart and doing the repairs with the other pistons left in place ?

 

[myredchevys]

I may not to do any repairs if the block is not repairable