Norton Commando
Jerrydoe.com  Forum Home  Norton Commando Forum  Photos  [FAQ]  [Search]  [Memberlist]   
 [Profile]  [Check your private messages]  [Register]  [Log in] 
Gearbox warning sign???

 
Post new topic   Reply to topic    Norton Commando Forum Index -> Norton Commando Motorcycles.
View previous topic :: View next topic  
Author Message
pkeithkelly



Joined: 26 Sep 2007
Posts: 129
Location: Encinitas, California

PostPosted: Tue Aug 19, 2008 1:00 pm    Post subject: Gearbox warning sign??? Reply with quote

A few days ago my Mark 3 started a new behavior, and I am wondering if I should be taking some preventative action....?

The bike will occasionally slip back into neutral after I shift from 1st to 2nd. (slips out of 2nd gear just a couple of seconds after the upshift, and it does catch in 2nd gear for that brief interval).

the other symptom, which i assume is related - it is harder to get into neutral when I am stopped. It was fairly easy before, especially if I just tapped it down from 2nd. But now it is takes a lot more effort, and is next to impossible to get it up to neutral from 1st when stopped.

The clutch is adjusted fine, and is not slipping or engaging early or late.

Oh, also - a couple of days ago I noticed that it didn't want to shift up to 4th after holding the revs up in 3rd for a little while.

I know somebody on this forum has a better idea of what is going on than I do...... ideas? Sure hope this is not the first sign of serious gearbox issues.

Bike has 17,000 miles, of which I have added 2,500 since I bought it last year. I have no idea if anything has ever been done to the gearbox, but believe it is all stock, including the final drive sprocket.

Thanks for any suggestions and theories.
Back to top
Per G



Joined: 07 Apr 2008
Posts: 66
Location: Sweden

PostPosted: Tue Aug 19, 2008 1:24 pm    Post subject: Reply with quote

There is a "standard problem"with the gearbox layshaft bearing that fails but as far as I noticed (when mine failed!) the warning here is that it gets harder to change to second and third gear. My gearbox also started to leak at the kickstart seal but since you have a better seal on the MK3 it might not be seen.

You might have a problem with the shifting mechanism that is located in the gerabox outer cover. It is easy to remove and you can look at oldbritts.com, technical articles, gearbox, to see how it should look like.

Regards,
Per
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Norton Commando Forum Index -> Norton Commando Motorcycles. All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

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.