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Discussion Starter · #1 · (Edited)
Hello,
On my Brutale 750S it happened this evening the following:
  • on a returning home ride, out of the blue I saw a slight irregular blink of the oil sensor
  • I've immediately stopped, visually inspected the engine (all good), looked at oil level with engine stopped (all good), looked at oil level when engine running (all good - the oil was pumped in the engine)
  • on starting the engine again, everything ok
  • somewhere a bit later the irregular blinking started again then stopped a few moments later
  • everything ok till almost reaching home when blinking started again (now in a more regular way - see attached video)

This is how it looks now: IMG 0045

What is your opinion on this? Could be the oil sensor failing or it might be something more concerning? On visual inspection it seems that the oil sensor is a bit oily on the outside.
Thank you!
 

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F4 1000 S, F4 1000 R, F4 1078, 750 Senna, Tamburini, Tamburini, Corsacorta
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What is happening if you idle up to 2000+ rpm?
 

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What is in it for oil?
When was the last oil change?
 

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Discussion Starter · #4 ·
What is happening if you idle up to 2000+ rpm?
I've entered garage, started... & I cannot reproduce it now. Will let you know, most probably tomorrow on trip might blink again... :(

What is in it for oil?
When was the last oil change?
Motul 7100 10W60, was running the last ~25000km on this type of oil. All good.
The last oil change was about ~2000-2500km ago, somewhere 1 month ago or so.
Oil level when stopped is on upper limit.

Thank you!
 

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Get yourself an oil pressure tester. It's very easy to test on these bikes.

It is most likely the sensor. They are easy to source and replace. Mine takes a well known sensor from a car.
 

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Get yourself an oil pressure tester. It's very easy to test on these bikes.

It is most likely the sensor. They are easy to source and replace. Mine takes a well known sensor from a car.
Would you please write some more details about an external oil pressure tester please?
 

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Discussion Starter · #8 ·
Wondering... will oil drain if I unscrew the oil pressure sensor? Does oil pressure sensor replacement means oil replacement too?
Thank you!
 

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no,
not necessary o drain the oil,
not too much oil coming out.
Hold a small container underneath
and quickly screw in the new sensor
 

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Old Wing Nut
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Sensors do go bad....and intermittent fault is a symptom.

@Manfred . here's a tester kit at a discount tool store in the USA.....screws into the oil pressure sensor location.:
 
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Sensors do go bad....and intermittent fault is a symptom.

@Manfred . here's a tester kit at a discount tool store in the USA.....screws into the oil pressure sensor location.:
That's the one I got, since I needed one quick.. it has the fittings you need.
 
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