Greetings from Hamburg Germany

[Senna#216]

hi everyone... i maybe new to this forum but not new to owning a CBX! I bought a brand new one in Glory Red when i was 20 years old back in 78 in the UK. then a Prolink 1981. sold the Prolink when i moved to Germany later that year...While lookin around in the clasifieds here in Germany (where i now live) a few weeks ago, i found a 1979 CB1 for sale that only had 1780km on the clock... couldnt believe it, but the next day on New Years eve i couldnt resist driving the 301km to go and take a look to see if it was real. Well to cut a long story short it was real and i went and bought it... i now have 5 motorcycles at home!

2003 MV Agusta F4 Senna
1975 Kawasaki Z1 900 (bought it in 1975 brand new!)
2000 Ducati 996 SPS
Harley Davidson Forty Eight

The story behind my CBX:
the first owner born in 1923 had an small accident on the bike shortly after buying it, not really much damage but he never rode it again! He passed away 2 years ago. His relatives decided to sell out his garage between Christmas and New Year... (a Ferrari was also in there but i couldnt afford it ) it is completly standard, it has the original tyres on it from 1979. slight damage to the end of left hand exhaust. cracked switch gear. missing left hand mirror and a few minor things here and there... it has a new battery and it runs on 4 cylinders which after a few minutes become 5, number 2 cylinder doesent seem to want to run, it fires every now and again but wont run smoothly, there are no noises from the motor its running like a sowing machine, but the clutch rattles, probably because its not running smoothly on all cylinders... i suppose i will have to clean the carbs and then see how it runs.... anyways....
so now im repairing the almost 40 years old damage that he did when he had his accident... and that leads me to the first question... how do i remove the broken tripmeter knob?? i have tried turning it clockwise but nothing happens.

Cheers everyone
Kelvin

[jnnngs]

Kelvin,

Welcome to the forum!

The trip meter knob just screws out - just turn it in the opposite direction to that you use to reset the mileage.

Paul.

[Senna#216]

Hi Paul

Tried that.. dont work, the stem is bent a little. maybe thats why. might have messed up the thread, looks like i will have to cut it off.

[steve murdoch icoa #5322]

Welcome to the site, Kelvin.
Yes your early model trip meter knob is a reverse thread but i don't have any recommendations if it is bent.
Someone will be along with an idea.
Great first post and fell free to post pics of that impressive stable of bikes.

[FalldownPhil]

Hi Kelvin,
Welcome to this wonderful site
I think that if you remove the entire gauge cluster from the bike, then you can remove the bottom of the cluster housing. (Speedo, tachometer, voltmeter)
With the lower housing removed, you might be able to hold the tripmeter shaft while you unscrew the knob.
Very Best,
Phil

[NobleHops]

[tevan]

Try a heat gun.. Sometimes people have used loctite on them and a little heat releases it.

[daves79x]

Yes, heat is the trick, but as Phil said, get the gauges off the bike first. As for the carbs, get them right the first try, either by someone that does them or by hours of research and work yourself, and you will have a very sweet-running CBX. Research everything before you dive in - it can get expensive otherwise.

Dave

[Mouse]

To the group Senna.
From the Canadian Rockies.

[Senna#216]

thankyou everyone for the welcome... still havent got that knob off yet. removed the clocks but heat doesent work either, there is nothing i havent tried other than destroying the damn thing.
cheers

[EMS]

When you turn the knob, try pulling on it a little to apply some load to prevent the shaft from turning.

[Senna#216]

When you turn the knob, try pulling on it a little to apply some load to prevent the shaft from turning.

thanks EMS but that was one of the first things i tried

[cross]

Hi and welcome,

Like you've said, the shaft is bent so that is perhaps why it wont unscrew. Try cracking rest of the plastic with pair of pliers. Try not to break the shaft just pinch ends of the plastic with pliers or perhaps try dremel or any other rotary cutter that you may have.

[wyly]

thankyou everyone for the welcome... still havent got that knob off yet. removed the clocks but heat doesent work either, there is nothing i havent tried other than destroying the damn thing.
cheers

if all else fails take it out of the housing.

if you're not up to the carb cleaning/rebuilding challenge Bert at Six Center Motoren is only a 3-4hr drive away from you.
http://www.sixcenter.nl/index.html 850 euros

Bert is the only person I know of that has an engine solely dedicated to testing and synching rebuilt CBX carbs.

[Senna#216]

Thanks again everyone for the info. Im currently in bahrain working and only have internet with my fon. I will look up that guy about the carbs if my own effort doesent work well.
Cheers