Just finist rebuild new rings, pistons. con rod, bearings. All torqued to book. Idled fine 20 min @1500 the after another 15 min @3500 she shut down with no warning. Ideas Please.
Just rebuild a 96 50/35 Jet power head. New pistons, rings, bearings and con rod. Bored 30 over. All torqued to manual spec. After 25 min @ 1500 RPM all was fine another 10-15 @ 3500 RPM and in shut down to idle. Where do I start looking to test?