I have been working on my father in law's evergreen colored Sears Craftsman branded rear engine rider (10 hp). It is their model 536.27011, which I assume it was made by Murray as my father has the same machine, just marketed as a Murray machine. I have thoroughly cleaned the engine compartment, fuel tank, new fuel line, plug, cleaned and gapped the magnets, and even put a carb kit in the unit itself. Even with that, I still cannot get the engine to even out it continues to pulsate at one speed (high or low) but then will even out at the other end. It is frustrating me to death as I am not fan of Tecumseh engines. Maybe it is mechanic...lol.
With that being said, my brother-in-law saved a very good single cyl vert. shaft B&S out of a basic MTD lawn tractor (11 hp). I know it runs as good as I have done the beginning and end of season maintenance on that machine since it was new. The transaxle simply split and they didn't have the money to fix it. With that being said, are their any pros or cons to swapping the engines in the Craftsman RER?
Please let me know as I am willing to do it but want to make sure I don't ruin the mower itself by doing so.
Thank you for all your opinions.