Hi, Im absolutely new about tractors with the exception of having run a Ford 8n or 9n (Not sure) probably 10 or more years ago, It was my father inlaws tractor which is long gone now. The seller is asking $4k OBO it comes with a brush hog, finish mower, back blade and Ford hydraulic manure bucket (Has one hydraulic arm) I asked him if the PTO is live or not live and he said he believes its considered a "live" pto because he says the pto will run even if the tractor is not being driven. He started the tractor up and after a few minutes I noticed a little smoke coming from the engine, he said its just blow back smoke and I could not tell, is this normal should I be too concened? he lifted the bucket up and also the hydraulic lift in the back and the tractor sounded nice no sputtering or suspicious noises heard, it just seemed to purr. He has a 12V battery connected to it, and I asked him if it was supposed to run off a 6 v and he told me that for the 5 years he has owned it, it has run of a 12v battery, but the generator couldn't charge it and that he sometimes charges the battery, he didn't seem to know too much about tractors either and said that he's just used it for cutting his lawn and plowing snow, and he also used the bucket to move large rocks when he first landscaped the property 5 years ago. He wasn't sure of the procedure on how to remove the manure bucket life but said he believed you just remove the pins and try and hoist it up to release it. Although he told me its a 601, im not sure which model number it really is, I emailed him to get me the serial number so perhaps that will determine it. My main concern is the smoke and the generator, Im wondering if the Generator just isnt able to charge a 12v but perhaps it will charge a 6 V, is it possible to hook up a 12V to a 6V system without first converting it over? Whats the opinion on a work master? Thankyou!