Originally posted by Ed Smith
If leakage through the front bearing is the cause (Which I do not accept) then every RC two stroke engine, ball bearing or plain bearing, would have the same problem.
Ed S
I have to agree. Dub Jett builds his engines with out any seals/dustcovers on the bearings. He wants it to leak some to provide better lubrication. It may sling a little fuel while running but shutting the carb does stop the engine.