Oil Pressure Sensing System Troubleshooting; If Abnormally Low Oil Pressure Is Detected When Snowmobile Is Running; If The Oil Pressure Switch Error (Fault Code No. 85) Is Detected - Yamaha Apex RX10PA 2011 Supplementary Service Manual

OIL PRESSURE SENSING SYSTEM TROUBLESHOOTING

If "OP – LO" display/limiter control is not canceled or the meter displays fault code No. 30.
1. Check the engine oil level in the oil tank.
Refer to "ENGINE OIL LEVEL INSPEC-
TION" in CHAPTER2.
OK
2. Air may have entered the oil hoses and/or oil pump.
The step below may resolve the issue.
a. With the engine shut off, tip the snowmobile 90° to the left with the oil tank facing upward and
wait 2 to 3 minutes.
b. Set the snowmobile back down on the skis on a level surface. Start the engine and rev several
times without engaging the clutch, then return to idle RPM. Do this repeatedly.
NG
3. Check the engine oil pressure.
Refer to "ENGINE OIL REPLACE-
MENT".
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4. Check the engine internal components
such as the oil pump, etc., and carry
out repairs if necessary.
Refer to CHAPTER5.
If abnormally low oil pressure is detected when the snowmobile is running (fault code No.
30), resulting in the engine stop.
1. Air may have entered the oil hoses due to the snowmobile falling over during running, etc. Carry
out steps (1) to (3) above.
2. If fault code No. 30 continues in the meter display, carry out the check and repair work.
Refer to "TROUBLESHOOTING DETAILS".
3. Carry out step (4) above.

If the oil pressure switch error (fault code No. 85) is detected.

According to fault code No. 85 in the meter display, carry out the check and repair work.
Refer to "TROUBLESHOOTING DETAILS" in CHAPTER 7.
FUEL INJECTION SYSTEM
Ensure that the engine oil level is correct,
start the engine, and then check the level
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again.
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