Hi all,
Wondering if anyone could give me some insight into what might be wrong with my bike from the description below.

I'm riding along motorway and lose power (felt like carb icing) so I ease off to about 60. After a couple of minutes I find I still dont have any power so I think I'm not far from my exit I will just keep going.

I notice i'm getting some funny looks from passing motorists, I look in my mirrors to see there is white smoke pouring out behind me.

I pull over the bikes stalls and wont start and i've got alot of oil all over me and the lefthand side of the bike so I get towed home. First thing I do is pull the spark plugs to check if there are any fragments of metal on them they look ok and the condition of the plugs leads me to think it wasnt running lean.

Since then I found it dumped all 2.5litres of oil it had put some more in it and it now starts and both cylinders fire but sounds like a tractor and has white smoke coming from the engine breather pipe and it wont idle or rev past 1500RPM.

Help Please

Rings gone?

Hows the compression of the cylinders?

I might be able to rustle up a compression gauge if you don't have one.

Are you sure it was white smoke. ? White smoke is water being turned into steam.
Blue smoke is Oil being burnt. Both symptoms of a cylinder head gasket. As mentioned by others. .A compression test is needed as a first step. As a mechanic though you would just pull the cylinder head off anyway, you know somethings wrong, Be it valve oil seals Head gasket or rings.

Hi All,
Sorry for taking so long to msg back my bad.

Dont know how the compression is, I would be most grateful to Defiler if I could use your Comp Guage.

The smoke looked white but could have had a bluey tint.

Its loking pretty terminal at the moment, but as soon as I get a chance im going to take the cylinder head off of it. But I have never done that before so a couple questions, is it as simple as loosening off all the alan bolts? what happens when I do that does oil go everywhere and such like? do I need to do anything special when putting it back on?

NO
YES
YES

Get yourself a Workshop Manual. Read it. If you understand all the descriptions and can recognise the parts and the sequences involved then go for it. The Manual will tell you the torque settings and any special tools needed.

You may be able to get a manual from the library.