Boring and honing cylinders.

I had the cylinders bored and honed at a local machine shop .25mm over, which is the first oversize, to receive NOS pistons I picked up on Ebay.


Top End

• Sandblast and powder coat cylinders and heads, matte black.
• Overbore the cylinder .25mm
• NOS 54.25mm pistons
• NOS Piston rings
• Refurbished and Zinc coated head bolts
• Yamaha head bolt washers
• Yamaha Exhaust gaskets
• Copper head gaskets
• Yamaha cylinder base gaskets
• NGK B8HS spark plugs