Airhead

you can get these in all sorts of sizes, you'll have to borrow or hire the appropriate lug crimping tool and heat shrink some insulation over the finished joints http://www.ebay.co.uk/itm/like/261168202970?lpid=83&device=c&adtype=pla&crdt=0&ff3=1&ff11=ICEP3.0.0&ff12=67&ff13=80&ff14=83&ff19=0

ask a yamaha parts supplier then

You could get a genuine one luke?

Greetings warren yeah start your own thread in workshop or classics fella

Perhaps your regulator isnt working properly, It wont do the battery any good if it isnt

They're all here mate

in 1981 the oil tank was behind the RH side panel, it should still be there unless someone removed it

It's a bit like giving your old engine a cholesterol shot

to save work you could be forgiven for taking the motor out, removing the barrel/piston and pouring diesel/gas oil into the casing and swishing it all about and emptying quickly...a couple of times until no more debris is evident, some may frown upon this but not everyone is able to strip and build engines. This would be best done though before any further running and you've already done that. you would get a feel for roughness in the bearings by turning the magneto rotor by hand and supporting the con-rod with your other hand?

you should have stripped the engine, all that molten piston is in the bottom end and the crank bearing races are open inside the crankcase, of course you'll have grinding noises!

Greetings SeaBass The classic bike shows at Stafford might be worth considering (auto jumble) you just missed one !

Nahh if its a smelly ducati it must be a stroker

it might even be the water in the combustion chamber and loss of compression due to the leaking gasket, you should sort that out first to see if it improves

I'd change the head gasket for a proper yamaha one and change the oil in the gearbox...then monitor whats happening