I have a case 450 uniloader that won't start all the time have power at key switch but know crank the preheat system works battery checks fine then all of a sudden it will start could be ten minute to two days hard to plow snow with this problem any ideas are most appreciated
Try bumping the starter solenoid with a jumper wire while the key switch is in on position. You should check if you have power out while your holding the key in the start position. Not quite sure which post it would be but a test light will do the trick. If you have power in but nothing out, would be safe to say you need a keyswitch.