I bought my Komatsu cheap because it ran real rough. Seller had forklift mech check it out said it needed head rebuilt. Took a little screwing around, but figured out one cylinder wasn't getting spark. Turned out a PO had installed a Pertronix kit long ago and at some point one of the little magnets fell out of the rotor. Pertronix admitted that happens all the time and sent me a new rotor for free. Runs much better on 4 cyl.
LOL! Had an Uncle, vintage of 1908, made really good money as a glass worker. Took up dirt-track racing, Frontenac head on Model T. Wasn't as good a driver as he was a mechanic. Flipped the whole car upside down into a muddy pond, one race.
Crowd swarmed the pond, lifted the car off him, drug him out, pumped the mud and critters out of his mouth and nose. He had the good sense to "retire" from racing.
Still a hellion, he got some sort of big six into a beefed up Model-T chassis around the time the Model B and Model A had taken over, but Model T were still all over the roads.
Dad said he'd pull a lever, run the car on half the cylinders, BANG (miss) BANG (miss) BANG (miss).. pump the klaxon horn, smart-alec challenge a newer and "better" car to "clear the road!" ... so he could pass!
Other fellow would just laugh, take off with a commanding lead. He'd then move that lever, come roaring up and pass, lever pulled again:
BANG (miss) BANG (miss) BANG (miss)..
Dad said he was cutting out half the plugs.
Asked Harold about it in his old age.
He said HELL NO!
The lever only controlled whether he had the six exhaust bypass valves all shut and on to the muffler, open on all six, or only open on alternate three!
They didn't have much AM radio coverage in West Virginia those days, let alone Tee Vee, insane-class politics or even printed porn.
Folks had to improvise.
Used forklifts can be just as "entertaining" yet-today. But only if you can keep yer sense of humour.