Rather than faffing about running the engine for a specific length of time and then letting it stand for a specific length of time, I prefer to just check it when cold... mine likes it filled to the top of the window, any less than that and it gives the dreaded red light.
I have found the difference between it staying off and coming on is about the same amount as an egg cup.
At some points in my ownership, the level has fallen so you couldn't see it in the window, no light came on.This is midway between the two lines and the light comes on, strange.Didn't come on today, perhaps it was too cold for the light to make an appearance. Next oil change I'll take the sender out and check it over, until then, a bit of insulating tape should sort out the distracting lamp.
Midway between the two lines with a cold engine switched off means not enough oil.
Quote from: darrsi on 10 January 2019, 01:24:07 pmMidway between the two lines with a cold engine switched off means not enough oil.Go on then, I'll bite.Midway between the two lines that Yamaha cast into the casing is not correct?Has anyone told Yamaha this?Is there a recall to get replacement recalibrated casings?
The reason is so you don't need to wait an hour after running the engine to check the oil level.
I think the reason is this. If the engine is cold - that means that all the oil that can flow back down has done so. After a short warm up and a couple of mins wait - there is still oil around all the parts that has yet to drip back down into the sump window area. I does seem a bit rubbish to have to read the level via this procedure as it just says a few mins after warm up but the longer you warm it the hotter the oil which will more readily/ quickly drip back down to the window area then the longer you leave it the more oil will drip down so there are too many variables. I would be much better if the procedure was from cold - cutting out all those variables.This would mean that the window would have to be higher as when cold all the oil that will do has dripped down and is near or above the top. I wonder if the read from warm procedure is just because they could not fit a window higher.
Quote from: Jules-C on 11 January 2019, 01:52:01 pmThe reason is so you don't need to wait an hour after running the engine to check the oil level. That sounds like the most logical reason to me.
Quote from: darrsi on 11 January 2019, 05:02:27 pmQuote from: Jules-C on 11 January 2019, 01:52:01 pmThe reason is so you don't need to wait an hour after running the engine to check the oil level. That sounds like the most logical reason to me.The most logical way - if the window would allow is for it to be from cold which would be BEFORE you rode it or started it. Rather than start it - warm it - stop it- wait a few mins - look at it - start it and ride.