Sounds like the coil is heating up and breaking down the spark. New coil time more than likely. I'll list a link to our library that will help you try and trouble shoot the coil with a multi meter.
http://www.onlycubcadets.net/forum/showthread.php?t=11
Also possible you may have a valve starting to stick open as it heats up. Usually is the exhaust.
__________________
DWayne
1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck
10" moldboard plow
2016 XT1 42" deck 18HP
|