I'm stumped and hoping you guys have the answer. Last snow season the Case would every once in a while bag fire and shut down. It typically occurred only after I'd been running her for a while and was working her pretty hard. Once she shut down I was able to restart things and continue blowing snow.
Fast forward to this year. During the initial snow storm I had the same behavior occur but this time it happened several times. At one point I noticed that the muffle pipe coming from the engine was glowing red. I backed the throttle off a bit and that seemed to decrease the frequency of the back fire/shut down routine.
I changed the ignition coil last year thinking that might be what was causing the problem. The only other thing that's different this year is that I busted my throttle cable clip and had to replace that. I'm wondering if when I reinstalled the clip I adjusted the throttle cable so that when the tractor is on full throttle it's running at higher RPMs than is wanted.
Thoughts and comments would be appreciated. Thanks.