OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Question On Scott Bonnar Cylinder Mowers Another Scott Bonnar Lawn Mower 45 series rebuild

Hi SBM45, and a warm welcome to the forum. It's always great to welcome another Scott Bonnar model 45 owner on board.

Your machine is the Series 2 (twin rail engine deck) Model 45 made in the SB Thebarton factory in South Australia.
If you could post the model, type and code numbers stamped into the metal air cowling of the B and S engine, we can give you an approximate age of your machine. The numbers are in the location usually near the intake manifold...please post the whole string of numbers.


As far as the chains and sprockets are concerned, I would need to see a close-up of the sprockets, where they are not covered by the chain, so as I could assess their condition for you.

Once again SBM45, to OutdoorKing.