So we've got an engine without a thermostat and low cylinder compression. Plus reported fluid under the bike at times.
BTW The cylinder compression should be 176 PSI when spun at 350 RPM.
Valves adjusted within spec?
Have you checked your fuel pressure regulator diaphragm for possible leaks?
It's easy to do and may at least tick off a possible cause for liquid reported under the bike.
Pull off the small hose to the FPR diapragm, and prime the fuel pump (no need to start the engine).
You should not see any fluid leak from the diaphragm side if the FPR.