[Hrc630]

Hi, on my last ride (Sunday) after about 120 miles of very hard ride in snow, my oil pressure light have begin to flash... at idle more but even at part throttle... no flash at full throttle.  After about 15 min of randomly flashing light all have returned to normal.

I have checked the oil and all is full. The engine sound smooth and no smoke or rattling. I cross my fingers for just a faulty oil pressure sensor but I begin to stress !
Two ride before this one my engine have loss about 1,5 liter of oil when a breather or something have freeze... (-32 outside) the oil have escapade by the valves cover.  I have put 1.5 liter of new oil and no problem for 2 rides of about 100 miles each.

I don’t know if this 2 troubles are related...
it can be..
- bad oil pressure sensor
- bad oil pressure check valve
- bad oil pump
- your idea

Thank for your input

[NMKawierider]

I don’t know if this 2 troubles are related...
it can be..

- bad oil pressure sensor
- bad oil pressure check valve
- bad oil pump

- your idea

Well, IMO it could be any or a combination of the above. It can also be an engine problem so I think if it were mine I would get a reading on the actual oil pressure first and while I was doing that, because some have had bad sending units or switches, I would go a head and get a new one. I might also be tempted to change the oil and filter...and inspect the old oil filter for any signs of trouble..like metal flakes.

[Hrc630]

Thanks, do you have the parts number of the oil pressure switch and sensor?

[NMKawierider]

Thanks, do you have the parts number of the oil pressure switch and sensor?

No...but I can look it up...01A0-012200, Switch, Oil Pressure. $16.20 US. This is from Alpha-Sports.