Too much oil?

[Bomberman]

Now, this is probably a stupid question, but iits intrigued me for some time. Setting off to uni. today (for an exam) I noticed to my horror that there appeared to be NO transmission oil in my bike. Also a drop of oil on the floor. Panic! I guessed something went wrong on the 70 mile thrashing I gave it yesterday. I had no time to work out what was going on or find alternative transport so I put a bit more oil in (100ml tops). Go to exam, return to bike. Not much oil and another drop on the floor Get it home. Check the sightglass and not only is there plenty of oil, theres actually waaaay too much! The sightglass is filled when the bike is level!
So, two questions I suppose. Firstly, any idea what could cause this radical fluctuation, and two (the stupid one) what does too much transmission fluid do to an engine? (its a 2 banger if that makes any odds).
Cheers
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'Allo! My name is Inigo Montoya, you killed my father, prepare to die!
'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare

[Pat172]

im sure im wrong, but arnt you meant to check the fluids when the bikes cooling/cooled down and when its level (ie not on side stand etc)
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- Suzuki Bandit N600

[Bomberman]

[Pat172]

yeah ive always been told ot check the fluids after a 10-15mins rest on a level surface
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- Suzuki Bandit N600

[Bomberman]

Well, just checked and its still waaay too much Rather worryingly, I tracked the drip to the back of where the gear lever meets the left side engine cover Hard to tell exactly. Anyone have any ideas what could have gone? And how? Could just be road crap and chain loob, but I doubt it I'll investigate further in a little while I think.
Anyway, still no answer to what too much oil will do?
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'Allo! My name is Inigo Montoya, you killed my father, prepare to die!
'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare

[mr jamez]

You mean the oil is dripping from where the gear shift spindle exits the crankcase? there is a small seal there which will be the culprit, I changed mine on the NSR with it all in situ.

As for overfilling the oil, if it were a 4 stroke then it might have ended up with a blown seal due to it being pressurised. But in a 2 stroke it is not. Unsure as to what damage it could do really, but I doubt anything will happen.

[Bomberman]

[Guest]

If you over fill the gearbox any surplus will find it's way out of the breather hole - don't know where that is on yours, on Suzukis it used to be under the oil pump cover.

It won't do any harm (if the breather isn't blocked) just make a mess.

As for the leak, whip the sprocket cover off and have a good clean-up and then keep an eye on it. Could be the shaft seal as said or it might just be chain lube fling.

[garth]

Unless you've got crankcase pressure, and it's blowing out of the gear shaft oil seal.

A friend of mine overfilled his bike with oil, and did this.

I may be wrong, and pessimistic, and a git and blah blah.....
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You ain't a has been if you never was

[Robby]

Right, putting mind at rest time.

The drip of oil you mentioned is most likely just a drip of chain oil - it all gets flung up around the front sprocket, then when the engine is hot it melts a bit and drips down. So I wouldn't worry there.

The transmission oil level fluctuating is probably because you just don't have it perfectly level every time. A very slight deviation from vertical can make a huge different in the sight glass. For real peace of mind drain the oil, then refill with the correct measured amount in a jug.

[simon1221]

I found too little or no oil is very loud and is more difficult to change gear myself.

I always have to use a torch and fiddle around before i can see anything in the sight glass.
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DNA50 (sorry) ->> TZR125l >> GPZ500S

[Guest]

[BFG]

[Guest]