Can the oil level be too full? - Sportbike Forum: Sportbike Motorcycle Forums
 
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post #1 of 2 (permalink) Old 12-19-2016, 11:50 PM Thread Starter
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Can the oil level be too full?

Good afternoon fellow Zedders from a wet and dark England. I did my first oil and filter change last week and all went pretty well. I've just been out for a long weekend on it and got back. Whilst cleaning and lubricating the chain with the bike on the centre stand I noticed that the oil level window is full.

I actually added a bit of oil earlier this week as I thought the level needed topping up as it had sunk a bit after the change. Now it looks like I've put too much bloody oil in it! Does this matter? And if so, should I just let a bit out of the bottom until it comes back between the "low" and "high" levels in the window?

Much obliged for your technical wizardry assistance!
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Last edited by NicoleJS; 02-20-2017 at 11:12 PM.
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post #2 of 2 (permalink) Old 12-20-2016, 11:28 AM
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Hi,

The sight glass can be deceiving on bikes if there is any tilt in any direction. But once you have it completely straight up and down while on flat ground, check to see if it is between the marks. Near the high side won't hurt, but when you get to the top line or above you can at the least expect some oil slapping and cavitation from the crankshaft. Best to lower it to a point between the marks.

Dan
1991 FZR 1000 - built 1040 with race cams, Akrapovic full exhaust, and mild suspension work
2004 YZF R1 - Graves full exhaust, velocity stacks, BMC race filter, and Power Commander. Rear Ohlins. Forks rblt with Race Tech springs and Gold Valves.
2005 20th Anniversary V-Max (0098/2000) - T boost,
2005 YZF R6 track bike - Graves full exhaust, Race Tech suspension
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