1973 Yamaha TX 750. 2900 indicated miles on odometer. . New piston rings, new ignition points,  plugs, and wires. Rings were changed out during a detailed visual inspection of engine for condition. All engine internal parts reflective of odometer reading, with no wear noted. This bike has the upgraded oil sump engine for added oil cooling.  Fresh engine oil added. Have had this engine apart twice due to excessive smoking (I mean ALOT!) New ring gaps doublechecked, cylinders honed, valve guides checked, valve stem seals replaces as well as all gaskets and seals. Oil drips from exhaust ports, not sure why.  Not going any further with this bike. All wiring in good original shape, all lights work, replaced front brake caliper, (still spongy), rear brakes good, original tires.  This bike will run, but billows smoke and leaks oil from exhaust ports...Probably has a cracked or warped cylinder head...No title, bill of sale only. Need it out of my garage. Highest bidder