OutdoorKing Repair Forum Forums Restoring, Customising and Modifying Reel-Type Mowers Scott Bonnar 45 Restoration and Decals

Hi Darryl, you'll have to school me on how to determine the HP rating of the Kirby, as I can't see it written anywhere. The ID plate shows KIRBY H4-4B.

The earliest Briggs engined twin rail SB45's I own have engine manufacture dates in mid 75, so that at least supports the 76 change to twin rails.

Here are a couple of other photos I've found to keep us guessing. Two different 17" twin rail, kirby powered machines