My new holland skid steer began smoking fuel smoke today any ideas?
Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help. With engine running, loosen injector lines at the injector nozzles, one at a time, to see if the smoke clears up when injector is loosened. This is like pulling off a spark plug wire to see if the engine is firing on that cylinder. If it is one cylinder, then remove the injector and check the tip. If it looks good, swap it with one of the other injectors. Then test again to see if the injector is problem or the cylinder.