I've been noticing an issue with my '07 S2R1000 (17k miles). The oil pressure warning light (OPWL) has been coming on briefly at around 7k - redline. As soon as I back off the revs, the light goes off within 1-2 seconds. The colder the bike is, the sooner the light comes on as I get closer to redline; there's no light when she's good and warm (190+).
Checked the oil level and it's good. Just had the 15k done 1k miles ago. Haven't washed the bike recently so no water in the pressure sensor.
Any ideas?
Does this happen only while riding or will it happen in neutral as well? Usually oil pressure goes up with engine speed. First step is to confirm you are loosing pressure at speed, which requires a mechanical oil pressure gauge. If you are loosing pressure, I would suspect oil is not returning to the crankcase fast enough. Check the oil return holes in the heads for starters.
Quote from: howie on November 03, 2009, 08:08:31 PM
Does this happen only while riding or will it happen in neutral as well? Usually oil pressure goes up with engine speed. First step is to confirm you are loosing pressure at speed, which requires a mechanical oil pressure gauge. If you are loosing pressure, I would suspect oil is not returning to the crankcase fast enough. Check the oil return holes in the heads for starters.
Thanks for the response.
It's been happening while riding but also in neutral. After warming up 5 minutes on the sidestand this morning the light came on briefly when I stood it straight up while in neutral? ??? Not sure about running it up the revs while in neutral as I haven't tried that yet. Also, my previous comment about it not coming on after being warm proved false this morning. It came on very briefly when I hit 8k and the engine temp read 195. The duration of the light and when it comes on does seem to be affected by temperature though.
First you must control engine oil level, with the bike in vertical position.
If the level is ok (between MAX and MIN) then the problem could be electrical, a failure of the pressure bulb.