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Smoke like a two cycle? Yep, sounds like a pony! The others covered it pretty well. Make sure it's got good oil, good gas (a clean tank helps). I've had good luck with the Champion J8C plugs. And make sure you have spark on all four cylinders...they will run on two...I did this when I broke one of the coil wires, and didn't really notice except for "rough" running! Make sure your fuel shutoff works and doesn't let gas drip by while sitting. Parts for ponies can be expensive, but a ring job isn't too bad. When you start messing with the crank and new pistons, then you spend money. I rebuilt my 70 pony for around a grand, rings, welded crank, main bearings, and head work...which isn't bad considering a 50 year old engine that will now outlast me. If the compression is good, you probably have worn out valve guides, making it smoke. If you can live with the smoke, I'd leave it alone and just run it. Just make sure you've got good oil pressure too. And since it's been sitting, get the waterpump off, and get new seals (and probably a shaft) in it NOW. Before you get problems with coolant in oil. That is what killed mine, and has happened to many more than me. If you've got a decent pony, it is well worth it to keep it vs spending money to convert to electric start. A big starter, wiring, batterys, etc easily adds up to a rebuilt pony, and you won't have a rig job. Brandon
My Industrial John Deere website
John Deere Diesels
The LaGrange Engine Club
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