I have a 2003 GSXR 750 engine in a racecar. The engine is “stock” and has not been opened up. I have installed the engine and it seems to run excellent, but there appears to be an oil leak coming from the head gasket on the exhaust side of the block (#3 cylinder area). I did a leak down test and all 4 cylinders appear to be @ around 99%. My plan was to install a new head gasket, but I guess I don’t know enough about the internals of these type of motorcycle oiling systems—does this seem to be normal for a “bad” head gasket to leak oil? It just seems strange to me that the engine runs really good and all of the cylinders leak down excellent. I obviously do not see any cracks or something obviously wrong in the castings.
Let me know if you guys have any ideas or any suggestions.
Arik
Let me know if you guys have any ideas or any suggestions.
Arik
