MaverickM23
Member
Just got done mowing with my 4320 on some big hills. At first everything ran great towards the end it started losing power and acted starved for fuel when I was going out along up the hill. When I turned back and was headed down along the hill it seemed to run better. I was going to change the fuel filter but the parts store is closed I will get one tomorrow, but does this seem like my injection pump is going out. Occasionally it would do this before like sort of speed up at times. The previous owner said that the fuel was turned up to it but looking at the pump it is still wired with the little round thing to let you know if anyone was in it. The tractor has 6100 hours and the tach works. The fuel was getting low but wasn't that close to being empty. It blows some black smoke when running hard but then at idle it smokes a little bluish white. Any ideas, sorry for all the questions but this site is the best for answers.