Another mystery engine

[winchman]

Now I think you all know about Winchboys 34 Enfield, I took him to the Vintage Motorcycle club founders day on Sunday it was excellent and he found some forks, well the previous owner found them in Kent and got the stall holders details, unfortunately he wouldn't post but was attending Founders day, until he fell off his bike! He kindly passed them on to another stall holder which was good, another gear box ( apparently you can never have too many) and a carb.
I bought a 1922 villiers MK6c.
So what bike was it from?

 

[8ob]

An atco mower, the "C" may have been commercial Looking at the mounts I would say its a mower engine.

https://www.oldlawnmowerclub.co.uk/technical/motormowers

Bob

 

[BarrieJ]

I think they were fitted to all sorts of bikes, Excelsior? and the ubiquitous lawn mowers of course.
Lots on old Villiers' stuff on the Internet
1923 Excelsior Junior.

 

[pedrobedro]

That sprocket is well worn

 

[merryman]

That sprocket is well worn

Seen worse, I sold someone a chain and they sent this photo, saying the new chain didn't fit properly.

 

[Munkul]

That sprocket is well worn

what do you mean? it's got half its life left

 

[CompoSimmonite]

I had a 1964 Honda S90 in 1974 on which the piston used to keep seizing. The engine was stripepd down but no fault discovered - then friend suggested that the oil pump drive should have teeth. It was completley smooth like a pulley !