Water in Gearbox ???

[Gary Lich]

When I bought my GS1100 several years ago the gearbox oil was a disgusting tan/cream color when I drained it. I attributed it to moisture because the bike had sat for a number years without being ridden. I changed it recently and found the same thing. Assuming moisture is the problem what puzzles me is how it is getting in there??? The bike is always garaged, ridden on a regular basis, almost never driven in the rain, no gear box leaks, etc... Anyone else experience this???

[1980GS1000E]

I would change it again and monitor it more closely. It can't be moisture if the bike sees the conditions you describe.

[psyguy]

one of the common problems is the fuel tap and carb valve leaking fuel into the cranckcase
any accumulated moisture would evaporate (through the cranckcases breather) in no time when the bike is ridden

[Gary Lich]

one of the common problems is the fuel tap and carb valve leaking fuel into the cranckcase
any accumulated moisture would evaporate (through the cranckcases breather) in no time when the bike is ridden

I understand the issue with fuel leaking into the crankcase, but this probelem is specific to the gear box which makes it even more of puzzle.....

[psyguy]

am i missing something

I understand the issue with fuel leaking into the crankcase, but this probelem is specific to the gear box which makes it even more of puzzle.....

so, you are reffering to the secondary transmission bevel gears?

you may have a leak between the two oil compartments