Hi there,

check the threads of the valve adjustment covers, they tend to work loos and then (of course) don't seal properly anymore. Try dusting the engine up with some flour or talc (whatever you have handy), after cleaning it and then go for a ride. The dust will point you towards the leaky spot.

Cheers,
Greg

Thanks guys,
Need to check those points but it may need to wait a few months! Can't see many bikes on the road this time of the year! There's a reason or two!

I've also read that if there is too much oil (what ever amount this meas) the engine might just 'throw' the excess amount out which in turn might look like oil leak. I have indeed been adding oil but this is due to the behaviour of the oil level indicator!
If I start the engine and the bike is on the side stand the red light is on all the time. Also, when I take off and the weather )or engine) is not warm I ride something like one mile before the light is off! So, I've been adding some oil. At the same time however, I find that the (stupid little) window shows that the oil level should be OK!
Is there any difference which oil should be used or rather is the best - or, which oil(s) should be avoided?
Pauli

Hello Pauli

The oil level indicator is notoriously unreliable.

As stated above you rely on the window. Place your bike on the centre stand and fill up to the mark. When you start the engine all the oil should disappear from the window that is normal.

You can remove the oil level switch and clean it. I found that its operation can become sticky. Remove it and flush in petrol. It won't get rid of the problem entirely but it can improve it slightly.

I have found that the situation gets worse with heavier oil. For me the symptoms appear when I accelerate hard or travel uphill the oil level light comes on. If I brake or go downhill the light turns off. Also when the oil warms up the problem goes away.

Best of luck.
Kevin

If it's not the cam-chain adjuster, it really is just a plain cover. (which usually doesn't leak, but then again...)

Cheers,
Greg

Yup, as I said, it's plain cover. You can see the backside of the (unloaded) cam chain guide, but the cover is only there for manufacturing reasons. As the front and rear cylinder are exactly the same, but the tensioners are in different positions in relation to the cam chain, there was the necessity to have two openings. Out of which, one has to be blanked off, when not used.

No worries, it's not rocket science.

Cheers,
Greg

Hello again,
Long time it took - been a bit lazy and (excuses)  the weather has not really been perfect for driving...
Anyway, got the bike on the road the engine well cleaned, oil changed etc.
Found the leak!
The oil comes from the starter motor assy! elieve it or not!
After only 100km it was clear. Everywhere else it was nice and dry but underneath the startermotor very wet!

Is this unusual or common!
Any ideas how hard this may be to fix?

Thanks
Pauli

Now it is dry, no leaks!
I'm happy but this is also most embarrasing.
Guess what!
It must have happened at some point last summer when I changed the oil! The O-ring on the oil cap must have fallen off and I didn't notice! Finally I came to thing of this as an alternative for the oil leak cause!

In any case - Thanks for the help yyou guys have provided!
Pauli