I have been retired for 5+ years and got into small engine repair because I am a cheap S.O.B. !!
I have a tiny garden (10x20) but always wanted a tiller. Found an old one that didn't and bought it for $20. 5hp B&S horizontal. Replace the rewind one-way clutch mechanism. Disassembled the carb. That is when I discover ChemDip ! I figured the points were shot and then I discovered there was a cheap electronic ignition "upgrade" kit. When I pulled the flywheel I found the "root cause". Sheared crank key ! After fixing all of these issues it ran like a champ !
A month or so later, I bought another tiller. This one was a Wards/Gilson. Much better than the other one and probably only 40 years old instead of 50 ! :laughing: Cleaned the carb, install the Magnetron electronic ignition and even spray painted the engine. Runs great.
I do basic maintenance on 3 mowers in the family (son-in-law barely knows the right end of a screw driver).
I inherited a Toro S200. I can't get the needle to seat so I'm just going to get a rebuilt carb off of eBay. Currently fighting with a Kohler Courage XT7. I have read here that the needle/seat is bad design and I need to buy a replacement carb.