Transmission oil coming out from transmission vent/breather ?!

[arveno]

Did I fill the transmission too much?

any other reason why the oil will leak out from the breather ? 

[docc]

What oil are you using?

Or, maybe more important, what was drained from it?

[arveno]

I filled it with 80w90

what was in there before …. Me , I don’t know .

 

why are you asking? What are you trying to find out ?

thank you 

m

[docc]

3 minutes ago, arveno said:

I filled it with 80w90

what was in there before …. Me , I don’t know .

 

why are you asking? What are you trying to find out ?

thank you 

m

Good question.

It has been very popular to use RedlIne Shockproof in these gearboxes (and the bevel drive).  The stuff is so thick and clingy (most especially the pink Heavy Weight) that so much stays trapped upon draining that it is almost impossible not to overfill. Particularly if using the specified volume to refill time after time.

With the bike standing upright, the fluid level should be no higher than the top of the sight glass. Some would say it is full at the middle of the sight glass.

How does yours look?

[footgoose]

mine did that after first service at dealer. it was overfilled

[MartyNZ]

My gearbox had small leaks and weeps because it was overfilled. Checking the level with the bike on the sidestand is bad. It must be vertical for minutes before you check that the level is in the middle of the sight glass. I can tell you that I can't do this by holding the bike up then bending down to check the level. I had leaks until I got it onto a maintenance stand.

[arveno]

Ahh ok make sense and I am familiar with the shock proof red oil.

I use it too LOL ( did not use it on my Le Mans though)

looking at the glass hole fluid is on top or more so I have most likely overfilled.

thank you everyone.