Oil level in sight glass

[ynot slow]

Hi people,i did an oil and filter change,first time on this bike.Capacity on crankcase says3.2ltr.In manual has 3.2ltr/4.0 ltr so assuming 4ltr is when rebuilding as 800mls is more than filter capacity.
I added too much oil as was filling with 500ml bottle and was distracted,hence placed 3500mls in instead of 3200mls(3.2ltr),mind you when I stood bike upright(no center stand)the oil filled to the top of sight glass.
Then decided to remove sump plug and drain oil leaving the filter on,removed approx 2100mls of oil.As i'd put 300mls too much in first time i just put 1800mls(2100-300 over first time)back in.Hope this makes sense,when i place bike level the oil level in glass is around half way up glass,not to top,also i removed 800mls from oil pack(4ltr)so would/could only place 3.2ltrs in.
Should the oil be to top of glasss which means overfilling by 300mls or so,originally the level was similar prior to draining oil,seemed to be about 3ltr -3.2ltr removed.
Stupid question i know but am keen on doing minor maintanence,even if filter had one bolt in way of pipe.filter not leaking so seems ok lol.

[slopster]

usually the clutch cover will have a little high and low mark next to the window. I wouldn't get too hung up on the exact volumes the book specifies. Remeber that your current oil filter could be bigger or smaller than the original was. If you cant find any marks just go with halfway up the window.

[psyguy]

i find the printed specs confusing so i go by the window only.
for a regular checkup /maintenance - i warm the engine up and then let it cool down a bit - and if the oil in the oil window is in between the min and max marks - all is good.
when changing oil + filter - i go by the window midlevel first (as above), then re-check after a short ride and top-up as required

[Big Dave]

I've seen some bikes dramatically overfilled with oil.
Obviously not good for them and should be avoided - but it isn't neccesarily terminal.
My XS1000 was filled by mechanic and apprentice and kicked in the guts. Oil come out of the air box like a garden sprinkler, blown back through the carbs. They cleaned it up and it ran fine, good compression and all. Just well lubed.

You're just lucky to have a sight glass that is legible - most of them need a torch and a second opinion.

[surfer]

Usually it is half way up the glass.

[FROSTY:Me]

Guys I dunno where you're getting this halfway up stuff from
Normal oil change procedure.
Drain the oil,
remove filter
alllow filter oilways to drain out oil.
Lube filter o ring/seal refit filter and sump plug.
Put in 3.2l (lowest oil quantity reccomended)
Start bike -run for 30 seconds
wait a minute or so
Stand bike in position reccomended by manufacturer (normally on both wheels upright)
Check oil level
Top up to full mark on dipstick or to full mark in sight glass.

Do this and you will NEVER under or overfill ya oil

[ynot slow]

More paranoid about too much oil in for start,oiled seal with new oil and placed filter in correct way,topped up to 3.2ltr,so then fired up and let run a couple of minutes,placed bike upright after couple more minutes,oil about midway in glass so happy with that.No dipstick just screw cap.

[FruitLooPs]

Yeah my 87 gsxr750 doesn't show up on the window at all when cold, give it a warm up check and its right midlevel on the site glass so i'm happy.

[mark247]

Yeah my 87 gsxr750 doesn't show up on the window at all when cold, give it a warm up check and its right midlevel on the site glass so i'm happy.

I thought you are ment to have it at the correct level on the site glass when it is cold / hasnt been run for a while? Not when it's warm.

[motoGP]

He he. I just top it up every once in a while.

[Max Preload]

I thought you are ment to have it at the correct level on the site glass when it is cold / hasnt been run for a while? Not when it's warm.

My ZZR is the same as his GSXR - if it sits for a week, you can't even see the oil in the window. But if it's checked hot, after sitting 5 minutes as per the genuine manual, it's correct.

[FruitLooPs]

States in my manual in the pre-ride checks to let the engine get to operating temp, then stand it up straight and take a look. Works a doozy

[Max Preload]

States in my manual in the pre-ride checks to let the engine get to operating temp, then stand it up straight and take a look. Works a doozy

As long as the oil light goes out for that period too...

[slopster]

Yeah my 87 gsxr750 doesn't show up on the window at all when cold, give it a warm up check and its right midlevel on the site glass so i'm happy.

That mean that it is overfilled but when you start it up the oil is pumped round the engine and takes a while to flow back to the sump hence it lowers the level. Only check the oil when the bikes been sitting for a while. I don't think it matters if its warm or not but as long as it hasn't run for at least 5 minutes or so.

[FruitLooPs]

That mean that it is overfilled but when you start it up the oil is pumped round the engine and takes a while to flow back to the sump hence it lowers the level. Only check the oil when the bikes been sitting for a while. I don't think it matters if its warm or not but as long as it hasn't run for at least 5 minutes or so.

Nah its not over filled, the window is def empty beforehand - not so full I cant tell. And yeah you need to leave it obviously for a bit for the oil to fully drain to the sump after switching it off.

I would think the viscosity will change after being warm, but i'm not sure if that should cause it to read diff on the sight glass.