2001 F115 Cylinder Honing

[swain1972]

What type of rings do Yamaha use. Moly or Chrome?
Is the cylinder sleeve just a normal iron.
I need to know so I can Hone the cylinders with the correct grit.

Thanks
Steve

[boats.net]

Not sure what ring are made of, they are not moly or chrome. Cylinder is normal iron.

[swain1972]

OK I plan on using a silicon carbide flex hone.
What grit would you use?