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My 2017 massimo msu700 is over heating. Rasiator is empty and fill resivior is full.

I'm hoping someone can help me out on this one before I pull out what's left of my hair. I bought a 2012 EFI MSU700 about a month ago and was told that "it floods out sometimes, and needs a fuel pump". Here is where I am with it... The machine will start MOST of the time. I have had it not want to start a couple times. It would just crank and crank but not fire. The machine idles fine, and in low gear drives fine but every now and then it will hesitate and almost feel like it is surging and sometimes it will sometimes backfire. In high gear it will drive fine but at around 25mph it starts to hesitate and bog down and backfire. I do have my seatbelt on as I have heard that can trigger a limp mode. After running for just a few minutes, the exhaust headers will be glowing red. This is what baffles me as if it is a lean condition and starving for fuel, but the spark plug when I have checked it has been black. It will smoke on startup and during acceleration and seems to get better after the engine warms up. I'm not sure if it actually gets better after it warms up, or the oil is burning off enough to make it not smoke as bad. The machine does not seem to smoke during idle or very slow acceleration. The dipstick verifies that I am burning oil also. I am thinking this may be a ring issue? I did not see any signs of oil in the airbox. When I replaced the fuel injector and had the fuel line disconnected, I turned the key on and off several times and it seemed as though I had a good amount of fuel coming out of the fuel line. It would "prime" for 4-5 seconds and then stop. The fuel also looked/smelled to be OK. I have replaced the fuel injector, the spark plug, and changed the oil and filter and it has made no difference. I have not replaced the air filter as it seems to be fairly clean. I didn't notice any visible cracks on the intake boots, but I also have not removed them to examine them all the way. Is it possible that the fuel pump actually is an issue and starving the engine for fuel, leaning it out, but the fact that its burning oil is making the plugs black? Is it running rich and dumping excess fuel into the exhaust? Is this an exhaust valve stuck open? Any help would be GREATLY appreciated as I would prefer to approach this with a plan instead of just throwing parts at it Thank you!

Does anyone have the compression specs for the MSU 700 engine? Mine is smoking something terrible at times and I would like to do a compression test prior to tearing it down. Also will too much oil cause it to smoke? To improve the wet shoe clutch wear, a dealer/parts supplier suggested that I raise the oil level to the bottom on the dip stick threads, which is approximately 3/4 of a quart. A little background this is a 2016 (I purchased it new in April of 2016) MSU 700 (Tractor Supply version) it now has approximately 500 hrs and 2900 miles on it. I use it almost daily on the farm and also take it to the VA and VW mountains to trail ride. I thought the belt was slipping, well I know it was slipping, so I replaced the belt and changed the oil, but new tires on it, greased, etc... When I finished it smoked like a freight train and I realized that the clutch was slipping also. Oh, I've used Mobile 1 V-Twin Motorcycle (supposed to be for wet clutches but not MA or MA-2 approved) oil in it since the first oil change. I replaced the wet clutch and switched to a synthetic motorcycle oil that is MA-2 approved. No more belt or clutch slipping but it still smoked heavily. Yesterday I ran it at the Rev limit in low and it stopped smoking. I checked the oil, added a little to bring the level back up to the dip stick threads. It started smoking again until I ran it at the Rev Limit for a few minutes then it stopped smoking.