Reading the manual for this motor it says too ...Start engine run at 1500 rpm...fix oil pump level in full-throttle position...and measure the oil discharge from each port.Do they mean to disconnect the oil lines from the carbs when motor is running -- for 3 minutes?? Sounds like this would damage the engine...Or am I just reading this wrong?
run the engine on 50:1 gas mix while the oil line/s is disconnected. hook up the mixed gas first, drain your carbs and motor filter, then reprime with the mixed gas, THEN do the test.
2001 90 HP yamaha oil injection pump test
Linear Mode
