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Messages - martin_uk

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1
If anyone has the above available would be interested in buying.

A complete primary shaft would be ok as long as sprocket teeth are ok

Its the spring plate that holds main jet.

Let me know price and condition.

Thanks

Martin

2
CB500/550 / Re: Has anyone used these coils?
« on: April 16, 2024, 08:37:12 PM »
My general experience with Chinese parts and tools is not good.

The exception is well known brands with a good reputation.

But as they say you pays your money and takes your choice......

3
CB500/550 / Re: 1975 CB500K1 Engine reassembly in frame?
« on: April 12, 2024, 12:29:38 PM »
Make sure you leave the sump & oil filter off off it's pretty maneagable just as the crankcase halves, plenty of space to fit the block upwards afterwards.

I used a piece of cardboard in the shape of the sump held in place with a couple of bolts to keep the dog hairs out until I fitted the sump etc.

Thanks Ted

4
CB500/550 / Re: 1975 CB500K1 Engine reassembly in frame?
« on: April 11, 2024, 09:42:34 PM »
Yes, it is easy to build up in the frame. Plenty of clearance available between top of breather cover and frame, unlike the 750's.

Thanks Julie

5
CB500/550 / 1975 CB500K1 Engine reassembly in frame?
« on: April 11, 2024, 09:17:17 PM »
Started to reassemble my CB500K1 engine and finding just the bottom end quite a lump to handle.

I wanted to double check that it is possible to reassemble everything in the frame once the crank case halves are together and installed and whether anyone else has tried.

I have a motorbike lift which means it is easier to work on at comfortable height.

I have rebuilt a number of CB750 sohc engines and no option other than to assemble up to cam cover, but I was a few years younger then  :D

6
CB750 / Re: CB750F1 4 into one silencer availability?
« on: April 07, 2024, 06:25:57 PM »

7
CB500/550 / Re: 1975 CB500 K1 rear brake pedal arm position
« on: April 05, 2024, 05:44:47 PM »
The return spring on my 500 K1 was missing. I eventually sourced the correct return spring for my 500 the spring sits on the outside of the frame/swing arm as you have identified.

There is a photo by Simon (SPR) showing it fitted.
If link works its this:-  http://www.sohc.co.uk/index.php/topic,28739.0.html
Thanks Ted

8
CB500/550 / 1975 CB500 K1 rear brake pedal arm position
« on: April 05, 2024, 11:17:41 AM »
As it was already in bits, I didnt get to see how fitted.

In the Haynes manual says to put arm in front of swinging arm and also shows return spring on inside of frame.

It does not work like this and lever binds up with actuator rod end.

Honda manual has a picture that shows arm behind swinging arm and outside spring.

Im guessing that Honda changed before end of K1 production?

Will now try re positioning

9
CB750 / CB750F1 4 into one silencer availability?
« on: April 04, 2024, 11:44:49 AM »
Just wondered if any update on repro to match original availability?

I lashed out on new original down pipes and collector but waiting for silencer availability before fitting

10
CB500/550 / Re: Converting CB500K3 sub loom to fit K1
« on: April 04, 2024, 11:37:43 AM »
Maybe it would be easier to buy the 500K1 loom from Electrex World and sell off what you have 🤔🤔🤔

I couldnt see a K1 one on their site.

The one I bought was £35 and K1 on Ebay over £100

11
CB500/550 / Re: Converting CB500K3 sub loom to fit K1
« on: April 03, 2024, 01:06:37 PM »

12
CB500/550 / Converting CB500K3 sub loom to fit K1
« on: April 03, 2024, 12:56:34 PM »
Wondering if anyone has already done?

My K1 sub loom is chopped about and multi connector to alternator missing.

Replica K3 subloom from Electrex I have does not appear to have inline fuse and starter solenoid wiring missing.

I can swap the starter wiring into new connector and wondered if anyone already converted one and has any tips?

Thanks

13
Misc / Open / Re: How do you decide it's time to buy a new bike
« on: March 28, 2024, 02:25:42 PM »
There is a formula for working out the perfect number of bikes to own.

Current number of bikes owned +1  :)

14
CB500/550 / CB500K1 Headrace balls
« on: February 20, 2024, 12:40:20 PM »
I removed the stem and yoke to check and regrease and wanted to see how many balls are needed in case any had escaped :-)

I was surprised to see in parts book that balls are 1/4 inch rather than metric and there are 37 needed for bike.

I have been caught out many years ago on an old Triumph by fitting too many balls, so checked Haynes manual and different numbers required at each end with Top 18 and bottom 19.

15
CB500/550 / Re: Gasket sets
« on: February 20, 2024, 12:14:35 PM »
I have same problem after buying  engine gasket kit from DS.

Assume there are pattern parts available for less than £5 each?

Anyone know a supplier?

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