OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Question On Scott Bonnar Cylinder Mowers Scott Bonnar 45 twin rail clutch

Hi BB,

I got the clutch through SB fabrications. It was almost too good to use on the mower.

I wanted to use a new Briggs 3.5hp motor but wasn’t able to find any stock so this old 3hp replacement engine will have to do for the time being.

I can see what I think may be a small hairline crack starting to develop on the rear rail. I might put a modern Briggs engine on it when they are back in stock. If I can’t get one with a 5/8 output shaft I’ll most likely get a chonda and upgrade the clutch again to 3/4 inch.