Questions On Rover Engines https://outdoorking-forum.com.au/forum/ubbthreads.php?ubb=cfrm Recent Topics en-us Sun, 26 Jul 2026 15:25:47 UTC 5 support@outdoorking-forum.com.au (OutdoorKing Repair Forum) UBB.threads https://outdoorking-forum.com.au/forum/images/general/default/rss_icon.gif Questions On Rover Engines https://outdoorking-forum.com.au/forum/ubbthreads.php?ubb=cfrm Suzuki Rover 2-stroke (M122X) https://outdoorking-forum.com.au/forum/ubbthreads.php/topics/122102.html#Post122102
M122X possibly 1989 to 1994


M120X → nominal class ≈ 120 cc

M122X → nominal class ≈ 122 cc
121–122 cc (often quoted as 121.5 cc)

As far as I know

Parts are functionally M120X

Every confirmed M122X owner who has rebuilt one has found that:

carburettor

crank seals

ignition

piston & bore

gaskets

…match M120X specifications.

In practice, suppliers, rebuilders, and forums treat M122X = M120X for parts purposes.

From what I've read the carbies are different or jetting and governor linkage.

A local mower shop should be able to clean the carby or do it yourself,

Old mowers are cheaper than parts ,usually you can find one for $10. or thrown out ones in scrap metal.

Cheers
Max.

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Not sure if this will help.

This is for a Honda but does mention and deal with OEM as well.


mich

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Regards, Ted

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