1990 VRO 90 hp blown piston

[bjf1280]

I have a 90 90hp VRO with 35psi on one cylinder, the rest are 115. Pulled head and found 1 cylinder needs to be bored out. Can just 1 be done?

 

[Faztbullet]

Yes and check the other 3 to see if in wear specs.

 

[emdsapmgr]

Make sure you match the piston with the others. If they are factory, then get a replacement factory oversize piston.