Oil light coming on under heavy braking and cornering CFMOTO C force 800 X8 Euro 4 spec This is a common problem on the V twin cylinder, liquid cooled, 4-stroke, SOHC, 8-valve, 800cc engine, more of a problem if you believe the engine dipstick indicated “Full Oil Level” position on the dipstick as produced and exited the CFMOTO factory.
If you follow the instruction in the CFMOTO manual the engine is filled with oil when at the top of the taper bit on the dip stick, well it might be but the oil light will come on under heavy braking and cornering. With extensive testing and different combinations in my experience fill the engine until the oil level is approx. 25% above the taper on the dipstick. I am not sure what this equates to in additional oil quantity or if indeed it matches the extra quantity of oil your dealers have recommended. This definitively worked for me, with zero issues of oil light coming on under heavy braking and cornering once filled as recommended above.