A thing of beauty right there. I've been mowing with a Yazoo with a tjd on it for 25 years. I've never had the engine apart and aside from just minor things that thing just won't die LOL
Nice i got a Yazoo YR60 but mine has a big briggs on it. I noticed some came with a wisconsin twin though. I also have 7 of these motors sitting on a pallet so maybe i can do a swap lol
Sweet running motor. I sure hope I get back to mine this Winter and get at least one of them running. Thanks for subscribing to my channel. Blessings, George, aka, The Shade Tree Fix-it Man
Does yours have a lever that says "LS H" I'm assuming it's low, start and high? I'm at the end of my rope as all these engine startup videos never show the procedure to start the engine lol. I started it a year ago but honestly forgot how
I always enjoy old engines, and well done keeping that ol' gal running! I am not an engineer, but on 2-cylinders of any make, I never quite "got" the rationale behind the 540+180 firing sequence - it's not that much different from a 1-lunger? Both this sequence and the even-firing one do seem to work well, though, and that's the test which matters.
The reason they did that is because one company sued them because the THD engine had such bad vibration (both pistons going up and down at same time) they claimed that vibration was damaging their tractors. So they made this engine with Pistons going up and down 180 degrees apart and it cut vibration way down. But it is true it is not quite as efficient and they changed it back to the other way (THD II) but with different counter weights to lower vibration and still keep up with lower emission requirements.
Ok I have the exact same and am unable to get it started I've got spark Im getting gas she seems to want to start but unable to hit it right any suggestions
THDs have the 360+360 firing sequence for a power stroke every turn of the crank; TJDs have the 540+180 'uneven' firing sequence. This is why TJDs sound a little bit like a Harley V-twin.
I just swapped one of these onto an old Jeep. 18 horsepower of pure freedom to roam the trails! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ur-NZlPFM8I.html
