OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Question On Scott Bonnar Cylinder Mowers New to SB45's

Hello all,
great forum and oh so helpful. I have just got myself two 45's hopefully to replace my little rover thoroughbred that need some attention and a new catcher. The idea being that I either turn the two into one good mower or have one to restore and use the other for weekly mowing duties.

The first is an earlier model 07154 single rail with a kirby tecumseh hk25 spec k1055 serial 9204 9102. The motor runs but not very well. There are a few 'dings' on the blades and it has lost drive to the blades (my fault - need to work out how to adjust it) and the main clutch has a lot of slippage and needs new cork. It seems complete other than an air filter.

The second unit is a later twin rail mower. 66594 - 450423. This has been re-motored with a 3.5 hp b+s mode; 93312 type 01155 E1 code 060601YA. This runs better but not perfectly. The blades appear in better condition although it doesn't cut well. Drive and clutch are good. However the motor looks out of alignment (see clutch photo) and it shakes like crazy.

Attached are the usual photos.

I really like the simplicity of design and the quality of the components (really nice not to have a bolt head round off, or a nut strip etc) Love the fact that the forum is here to help. Love the fact that so many parts are still available!

So.... Which one would is worth putting more effort into?
Is there any way to align the motor ( It seems like the lower nuts for mounting the motor are captive)
Can someone please guide me to the section on the adjustment for the drive clutch (looked but I can't seem to find it)

I like the fact that the newer motor is more powerful and may be mor5e reliable. I also like the fact that I can get my teeth into restoring the older one. At this stage I am weighing up my options and resisting spending too much in the short term till I become more SB45 savvy

Thanks in advance. This really is a great forum!
















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