Hi luvmybota, Your unit being 11 years old, I wonder if you have checked the fuel lines? I have mentioned this before in other threads, but will just in case it might help.. Those lines will harden tiny cracks may form, and the clamps will loosen up . The vacuum will be lost as air seeps in- allowing the unit to loose prime. Then you have to crank and crank (and crank) (No electronic fuel pump) to get the fuel pushed to where it belongs. I have had this happen with 3 of 4 machines. The Case skid steer was a good example. Crank and crank and crank till you thought the battery was going. Then it would finally catch. When cold, the same thing.After trying to crank ,jump off and listen to the fuel line s and see if you can hear air seeping.Sounds like a faint way off mosquito .You could also see if a little tightening up on the clamps will help on the second time around. Anyway , I replaced my fuel lines and got new clamps too. No more problems. I see now why the manufacturers recommend changing the fuel lines after just a few years. By the way, I had no diesel leaking but could hear the air seeping . And I also tightened up the clamps on the old JD 332 because I forgot the new fuel lines and it kept its prime this past week. Good luck , Bordercollie