07 Constant leaking Oil

[DirtyHarry]

Hey guys, my new 07 gs500 seems to be leaking oil from either the clutch shaft seal, or the output shaft seal (where the sproket is).
Now i have taken it back to the dealer and apparently they have replaced both of those seals. However that didnt fix the problem. Now they believe its the clutch shaft, because it seems to have a scratch/mark on it.
However i dont believe that would be a cause of the leak, i mean its a new bike and a oil leak just doesnt happen from those seals unless its cause by something else.
Did any of you guys experience this?
Im thinking its something to do with the oil pump and excess oil pressure in that area.
I dont think its gear shaft seal, since that looks ok.
Your ideas would be appreciated.

[Cal Price]

This sounds like it is a new machine covered by warranty? In that case i would be very reluctant to take a wrench to it.

If a dealer is having problems and he knows you are tinkering he may well take the road of invalidated warranty. However there are some things that you can do to eliminate the obvious which is always the best place to start.

First check that you have the right amount of oil in the machine, a little too much can cause leaks all over the place. Have a good clean up and try to see exactly there the leak is occuring and place something under it overnight or for a 24hr period if you can just to try and gauge the amount of loss.

If the bike is under warranty make sure the dealer acknowledges it's his problem not yours, if you are not happy try to get an oppinion from an experienced mechanic, a lot of the small independent guys are very freindly and surprisingly helpful, they will see you as future business, serving etc but make sure that the dealer or whoever the warranty specifies sorts it out.

[yamahonkawazuki]

YUP if under warranty, unless you are an "approved" techie, i would NOT touch it, cept for maintenance, like oil etc ( adding to proper spec)

[DirtyHarry]

yeah no, i didnt touch the bike, i only opend that sproket cover to clean/oil the chain and noticed that oil leak.
Firstly i thought, that it might have been oil/gunk from the chain, but after cleaning it. it came back. So i took it to the dealer. i didnt tinker with it cause there is no  point since its under warranty.
Oil level is good. What frustrates me is the time the dealer is trying to fix this issue. When i first took it back they had the bike for almost 2 weeks. Now its been another 1 and still waiting.
It seems they dont know what they are doing, hence why i would post this up to see if anyone had experience with it.

[sledge]

Excess crank-case pressure could be a factor. Pressure builds up inside the engine during normal operation and it vents out through the Breather. If the Breather or the pipes become blocked or obstructed this pressure has nowhere to go, it builds up and literaly forces the oil out via the path of least resistance, usually the seals. Maybe the mechanic is assuming because yours is new its not likely to be blocked but I would ask them if they have checked it.

There is a way to check for excess pressure but its hit and miss and not 100% reliable......Give the bike a good thrash for an hour or so, then as soon as you stop gradually undo the oil filler plug, if you hear a subsatntial "Hiss" as it loosens off it indicates the crank cases are pressurised and the breather is blocked.

[yamahonkawazuki]

Excess crank-case pressure could be a factor. Pressure builds up inside the engine during normal operation and it vents out through the Breather. If the Breather or the pipes become blocked or obstructed this pressure has nowhere to go, it builds up and literaly forces the oil out via the path of least resistance, usually the seals. Maybe the mechanic is assuming because yours is new its not likely to be blocked but I would ask them if they have checked it.

There is a way to check for excess pressure but its hit and miss and not 100% reliable......Give the bike a good thrash for an hour or so, then as soon as you stop gradually undo the oil filler plug, if you hear a subsatntial "Hiss" as it loosens off it indicates the crank cases are pressurised and the breather is blocked.

+1 and a good excuse for a "spirited ride" as well

[DirtyHarry]

could another way to test it be by unhooking the hose from the air intake and then sucking on it to see if you can suck air?

[Cal Price]

You mentioned the possibility of chain-fling. This is a very common mistake that I for one have made in the past, usually it shows most around the gear change lever or as oil on the left toe of your riding boots. Clean chain with WD40, then wax then do the spirited ride etc etc. Don't overdo the wax, keep it a bit on the dry side, it won't hurt for one ride but wax it fully afterwards.

[DirtyHarry]

definately not chain fling as you can tell its oil, it even starts running down the side of the sump and dripping on the groud. plus the texture and colour of it.