Norton Commando
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Clutch operation
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Keith1069



Joined: 10 Jan 2005
Posts: 231
Location: Hampshire UK

PostPosted: Wed Jul 16, 2008 6:31 am    Post subject: Reply with quote

Dave
Check your diaphragm spring. It's not often mentioned but they do warp and after years of trying to get my clutch to release cleanly with all the mods, correct parts etc I found the fingers were different heights. You can check this with the spring off and tool removed. Any significantly uneven finger height will affect even release. I replaced the spring and problem solved. I do not however adjust to the manual. One turn back from touching the pushrod is a lot of play to take up before the clutch operates. I screw in adjuster and back off 1/4. You should find that when hot the hand lever play increases, well mine does and it does make sense.
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daveh



Joined: 22 Jan 2008
Posts: 34
Location: Dublin, Ireland

PostPosted: Wed Jul 16, 2008 6:49 am    Post subject: clutch operation Reply with quote

Keith — I have the diaphragm spring off at the moment, so I will check this. I too thought that one full turn out of the adjuster nut is a lot, so I turned it out 1/2 a turn, but the clearance at the handlebar lever still becomes smaller when hot, unlike yours, which does the opposite. I will get to the bottom of this! Thanks for your advice.
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Keith1069



Joined: 10 Jan 2005
Posts: 231
Location: Hampshire UK

PostPosted: Wed Jul 16, 2008 7:04 am    Post subject: Reply with quote

I figured that with the aluminum cases expanding faster than the steel gears and misc parts it explained the increased hot clearance. I have a belt drive and knowing the drum expands a lot diametrically it probably does the same axially. Come to think of it I don't recall it happening with the original steel basket. Sorry to confuse.
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The Unapproachable Norton Commando

At the end of 1967 the Norton Commando was announced.

The Norton Commando was greeted with a certain amount of scepticism because on first sight the commando appeared to comprise of the old Norton Dominator twin cylinder engine mounted at an inclined angle in a set of new cylinder parts.

It was not realized that the new Norton Commando Isolastic method of engine suspension damped out all engine vibration and produced a machine which had uncanny smoothness for a vertical twin. In due course the critics were silenced and the Norton Commando had the distinction of being regarded as the first of todays so called superbikes. There can be little doubt that the original design concept of the Norton Commando has proved correct, since comparatively few modifications of any real consequence have been made since production commenced during 1968.

Now nearly 40 years later Norton Commando riders like us are a breed of our own, and as far as we are concerned its still more fun to go for a blat on the old Norton Commando, and fast. As a Norton Commando owner and enthusiast, my goal here is to promote and give credit to those who keep the Norton name going.

It is more deserving to give credit to the Commando itself, for after all these years it continues to be respected. The original Commando designers like John Favill are those who deserve the credit for developing this incredible motorcycle.

The Norton Commando Roadster and Interstate of the late seventies, never died. Although the Norton Villiers factory dispersed the tradition lived on. Today Kenny Dreer in the USA is developing the new 952 CC Norton. What a great looking bike this is, and its engineering is still based on the original layout. It will be interesting to see how the new 952CC Norton does in todays tough motorcycle market. One thing is for sure, I would own one if I could afford it.