05 rmz250 leaking compression into flywheel cover. What would cause that?

Question edited for clarity.

Looks like it will

https://www.google.com/search?q=2004+Suzuki+RMZ250+2007+forks+on+2004

..

Bad ignition timing.

Dirty Carburettor. (incorrect mixture)

Dirty spark plug (possibly)

Well you certainly have tried a great deal of things, your compression is fairly low, however I would expect it to fire all be it not run too well, initially I would suspect a couple of things, a massive air leak i.e. crankshaft seal leaking or has fallen out, or the flywheel key in the flywheel has sheared knocking the ignition timing way out.

Some trucks may develop an oil leak at the high pressure oil pump outlet fitting. This will cause a no-start condition as the computer needs to see at least 500 PSI before it will activate the injectors. In some cases the no-start will be intermittent and/or an intermittent stall with no codes will occur. If high pressure oil leak diagnosis indicates a leak at the pump, the pump outlet fitting (W301727) and the discharge tube block should be replaced with fitting and bracket kit 4C3Z-9B246-A. Do not torque the outlet fitting beyond 38 ft/lbs. If the leak is traced to the branch tube running through the engine block, replace with P/N 5C3Z9J332-B (requires removal of the transmission, flywheel and rear engine cover; new flywheel bolts required). I had this exact problem with my 05 6.0 diesel and it is an issue that the dealer knows all about.

OIL IS LEAKING BY VALVE GUIDES.BURNING WITH FUEL OR REAR MAIN SEAL LEAKING. CHECK AROUND FLYWHEEL AREA TO THE OIL PAN .ALSO IF FRONT CRANK TIMING COVER SEAL LEAKS IT WILL LEAK WILL CAR IN MOTION.OIL WILL LEAK ALONG THE HIGH WAY YOU WILL LOSE OIL THAT WAY.

Did you forget the crankshaft seal or install the wrong part behind the flywheel? It should be replaceable when the flywheel is pulled. I'm not sure what that has to do with blue smoke coming out of the exhaust. Did you over-oil the rings when you put it together? The smoke may clear itself after running a while. Other than fouling the plug and alerting the EPA, it won't hurt it to smoke a little while. Did you check to see that the oil level in the crankcase was correct?

Sounds like the timing may be advance too far or the carb could be needing adj.

But since its running hot first check with the timing....there may be other issues such as wear or lack of oiling causeing your problem as well

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

Several things here. Do an oil change, 10w40 motor oil. Run premium gas and install a new NGK spark plug one heat range colder than stock. It sounds like you have an air leak causing a lean fuel mix. Check the carb mount bolts and the intake manifold bolts for tightness. Also set the valve clearances with a cold engine > .002 intake and .003 exhaust. Check for any cylinder head leaks. This would show up as oil on the cooling fins at the base of the cylinder head. Tighten the head bolts if needed.

pull off the tranny inspectiont cover and see if its wet in there, if it is its prob the front tranny pump seal if not and it is anti freeze youve go a hose leaking or intake manifold gasket leaking or a head gasket leak!!! either way the 4 wheel drive would have nothing too do with any of the leaks !!!!

willie05: sounds to me like you have a leaking rear main oil seal.
If the oil is dripping out at the bottom of the motor and appears to be sourced from where the back of the engine and the front of the transmission mate together, that is your problem. Sometimes if the leak has been going on for a while, the under side of the engine and transmission may be covered with oil because of the wind turbulence caused by the car in motion had been blowing it all over the under side. It may take you washing the under side if the motor off or getting it done, to spot the leak more easily.
A valve cover gasket leak will also cause oil to run dow the back of the motor. However, it usually won't get on the flywheel.
Good Luck. Let me know how things turn out.