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Thumper · 12-08-2023, 08:32 AM

Tom is dead on. Adjust those valves before you bother doing anything else. It is a wild card that you can't avoid. Until you know your valves are opening and closing completely and at the right time, you can't really troubleshoot.

Also, 120psi compression is easily enough for the engine to end pretty normal if it's the rings. But if it's the valves, it can stop running when it gets hotter

12-08-2023, 08:32 AM	#54
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,323	Tom is dead on. Adjust those valves before you bother doing anything else. It is a wild card that you can't avoid. Until you know your valves are opening and closing completely and at the right time, you can't really troubleshoot. Also, 120psi compression is easily enough for the engine to end pretty normal if it's the rings. But if it's the valves, it can stop running when it gets hotter __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it Last edited by Thumper; 12-08-2023 at 09:10 AM.
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