Its a Euro model.It wont run on US quantities...

 

All you have to do is scratch out the #5 and replace it with a #1 at the begining of your VIN tag and it'll run just fine on gallons, quarts and such.

 

I get better economy on UK gallons though, so it definitely doesn't run well on US quantities!

 

Well, it still can get worse here. Mr_Taipan, please be aware that you are putting some excessive asymmetric wear on the bike by continuing to ride on the wrong side of the road. This machine wasn't originally made for that, so be prepared for one or the other sign of increased mechanical stress.

 

So after all the messing around with my primary chain, putting a new tensioner in, etc... The noise got worse.

I had thought the slight scoring on the inside of the primary cover was possibly from chain slap but I guess not.

After re-assembling everything, the noise was worse. A lot worse. And constant even when I let off the throttle and coasted. In fact, in neutral, with the engine turned off, coasting down hill, it was still clattering. It sounded like someone was lightly tapping on the primary case with a wooden mallet.

And so, back up on the jack when I got home and I started really looking as closelly as possible at all the other options. And here's the culprit.




The transmission sprocket was severely worn. If you look at it closely, you can see how large the lands are supposed to be and how they have worn down to almost non-existent ridges. A couple more miles and I would probably have been left on the side of the road.

Thankfully there didn't appear to be any (or at least any noticeable) wear to the splines on the drive shaft so......

......a new sprocket kit should do the trick......I hope.

 

At least you've found it. It could have been worse and more expensive. Deserves a I reckon!

 

Thanks. And it was very educational as well.

 

Went into my local indy today and ordered the new transmission sprocket kit from Drag Specialties and some other essentials (no fun stuff / goodies ) to get the old girl back on the road.

Should all be here in time for the weekend. I hope a couple solid hours work will get her humming like the machine she is. Then maybe I'll get some real road time in.

 

That kind of wear happens when the sprocket nut is not tightened properly and occasionally with an aluminum pulley and extremely high power outputs. Make sure to use red loctite and follow the factory torque procedure.