Suburban with kohler k90

[rockfallhorse 0]

Have a suburban with k90 kohler.Tractor sat all winter pulled it out of storage first pull it starts.Ride for about 20 to 30 minutes it dies hard to start again sometimes won"t start at all. It"s got good gas flow,rebuilt carb,good spark. Any ideas. THANKS

[TT-(Moderator) 1,162]

Have you checked the valve clearance lately?

Does it have spark immediately after it dies?