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Messages - martin_uk

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1
Misc / Open / Re: Parts price increases in a falling bike value market
« on: October 09, 2026, 11:41:36 AM »
A quick shout out for Nurse Julie, for her help in reducing parts prices.

As an example David Silver charges £46 plus P&P for 6 genuine CB750 rubber pucks under cam carrier.

Julie's price is £15 to members here plus P&P  :)

Honda/DS/CSMNL prices for small genuine Honda rubber parts is crazy.

Don't even think about the genuine rubber inserts for cylinder fins DS price is £10.20 and there is 20 so to replace all would cost £204 pus P&P  :o


2
Out & About / Re: Out and About 2026
« on: October 09, 2026, 10:43:59 AM »
Although it was chilly out earlier today, (well, to be honest, it felt bloody freezing) the weather is still too good to think about putting Kitty into hibernation just yet 😁😁😁

(Attachment Link)
Bike looks great  :)

3
Misc / Open / Parts price increases in a falling bike value market
« on: October 08, 2026, 12:46:27 PM »
The price of parts does not seem to be decreasing in line with bike values.

I am not surprised, as everything is affected by wages, energy, rates etc.

However, it does make it difficult to justify the spend on restoring a bike when the parts and services ie painting, wheel building are likely to cost more than the bike is worth.

The value of parts does depend on demand and bike they fit.

A similar Honda Cub part is clearly not going to command same price as a CB750 K0 or for a Vincent :o

I have been put off restoring bikes I have been offered and I am sure may others are.

It was generally about the challenge of bringing something back to life.

I always knew I would not make money, but you do hope you are not losing too much.

An inexperienced restorer will probably be shocked at actual cost and disappointed.

As a friend said, "any hobby costs money"  :) but it does affect my motivation.

I guess that vendors will lower margins if demand drops and there will not be the financial return to remake parts.

Probably more bikes will be broken as worth more for parts :(

Interesting times :-\



 

4
CB750 / CB750 sohc K5 valve stem seals
« on: October 07, 2026, 03:47:29 PM »
Helping a friend with his bike and need to replace valve seals.

I am a bit hesitant to rely on the seals in gaskets set and would like to ensure using proven parts.

I see Viton ones are being offered on Ebay and Kibblewhite Red ones in the US.

Would be interested in other members views and experience.

Thanks

5
CB750 / Re: CB750 SOHC Gasket sets
« on: October 05, 2026, 07:31:29 PM »
91318300013, expensive genuine but pattern available, i have no idea on quality as i rarely touch 750 and most 500 sets have them in

Thanks Bryan

6
CB750 / Re: CB750 SOHC Gasket sets
« on: October 04, 2026, 04:19:44 PM »
There does seem to be a variety of options, some include the pucks.

From online searches I found various brands :-

Vesrah
Athena
Hendler
Vertex
Chinese brands

7
CB750 / Re: CB750 SOHC Gasket sets
« on: October 04, 2026, 02:32:48 PM »

Here is info from Vesrah site

https://catalog.vesrah.co.jp/catalog/shape/VG-157.html

OP SET    LINE NO.    O.E.M NO.    NAME OF PARTS    Q'TY
●    1    12329-300-020    BREATHER COVER GASKET    1
●    2    12391-300-030    CYLINDER HEAD COVER GASKET    1
●    3    91302-001-020    O RING 30.8    8
●    4    91305-323-000    O RING 5.8 X 1.9    4
●    5    91303-035-000    RUBBER 16 MM    2
●    6    91304-286-000    O RING 61.8 X 2    4
●    7    91301-300-000    O RING 6 X 2.3    1
●    8    12251-300-070    CYLINDER HEAD GASKET    1
●    9    12191-300-030    CYLINDER BASE GASKET    1
●    10    14592-300-000    TENSIONER HOLDER GASKET    1
●    11    18291-254-000    EXHAUST PIPE GASKET    4
●    12    12115-300-000    CYLINDER STUD BOLT PACKING    8
●    13    12209-300-003    VALVE STEM SEAL    8
   14    30372-300-300    POINT COVER GASKET    1
   15    11396-300-303    CLUTCH COVER GASKET    1
   16    11397-300-303    DYNAMO COVER GASKET    1
   17    31282-300-020    STARTER MOTOR COVER GASKET    1
   18    11395-300-040    MISSION COVER GASKET    1
   19    11398-300-303    OIL PAN GASKET    1
   20    15135-300-010    OIL PUMP GASKET    

8
CB750 / Re: CB750 SOHC Gasket sets
« on: October 04, 2026, 02:14:14 PM »
I did a bit more searching and found a US site listing contents of Vesrah VG-157  :)

Looks like excludes pucks

Includes:

12329-300-020 – Breather Cover Gasket – x1
12391-300-030 – Cylinder Head Cover Gasket – x1
91302-001-020 – O-Ring 30.8mm – x8
91305-323-000 – O-Ring 5.8 x 1.9mm – x4
91309-035-000 – O-Ring 11 x 2.5mm – x2
91304-286-000 – O-Ring 61.8 x 2mm – x4
91301-300-000 – O-Ring 6 x 2.3mm – x1
12251-300-070 – Cylinder Head Gasket – x1
12191-300-030 – Cylinder Base Gasket – x1
14592-300-000 – Cam Chain Tensioner Gasket – x1
18291-254-000 – Exhaust Pipe Gasket – x4
12115-300-000 – Cylinder Stud Gasket – x8
12209-300-003 – Valve Stem Seal – x8
30372-300-300 – Points Cover Gasket – x1
11396-300-303 – Clutch Cover Gasket – x1
11397-300-303 – Alternator Cover Gasket – x1
31282-300-020 – Starter Motor Cover Gasket – x1
11395-300-040 – Transmission Cover Gasket – x1
11398-300-303 – Oil Pan Gasket – x1
15135-300-010 – Oil Pump Gasket – x1
Fits Honda:

CB750A Hondamatic – 1976-1978
CB750F Super Sport – 1975-1978
CB750K – 1974-1978

https://www.motorcyclepartssupply.com/product/vesrah-complete-gasket-set-vg-157-honda-cb750-1974-1978/

https://www.motorcyclepartssupply.com/product/vesrah-complete-gasket-set-vg-157-honda-cb750-1974-1978/

Reduced to $31.99

9
CB500/550 / Re: CB550 neutral indicator light
« on: October 04, 2026, 02:01:22 PM »
It is a good idea to familiarise yourself with the normal operation.

The neutral circuit operates using ignition switched power to the warning light (+) and the neutral switch grounds the other wire (-) to light

As Ted mentions, incorrect illumination can be caused by the switch wire being shorted to ground some where along length or even at bulb end or a faulty switch causing it to ground when not in neutral

10
CB750 / Re: CB750 SOHC Gasket sets
« on: October 04, 2026, 01:46:38 PM »
Think about the trucks deliveringbthe bits, 450 litre tank average 8mpg so 3-400 litres a day

Its over £2 per litre for diesel down my way and works out at £9+  per gallon   :o

11
CB750 / Re: CB750 SOHC Gasket sets
« on: October 04, 2026, 01:43:56 PM »
We've used lots the Vesrah kits, always good quality and to be honest, £95.00 isn't that much really in the great scheme of things, I get less than ¾ of a tank of Diesel for that 🤣🤣🤣

Thanks Julie and Bryan
Sounds like Vesrah is best bet.


Do you know whether they include pucks and valve seals?

12
CB750 / Re: CB750 SOHC Gasket sets
« on: October 03, 2026, 12:05:03 PM »
Appreciate comments.

I see DS do 2 options on pattern gasket sets one at £55plus vat and another (Vesrah) at £95 plus vat.

Unfortunately, it is not clear what the full contents are. ???

13
CB750 / CB750 SOHC Gasket sets
« on: October 02, 2026, 10:43:08 AM »
I am helping a friend with his bike, which had oil burning and top end leaks.

As it has been a while since I rebuilt mine and suppliers change, it would be useful to get some current recommendations.

I see there are a number of suppliers of top end sets and am interested in member's experience.

Which is the most comprehensive set, to include cam carrier pucks, cylinder stud seal tubes, cylinder sleeve o rings, exhaust rings and valve seals?

Is it worth buying a genuine Honda head gasket seperately?

Advice and recommendations on value for money and quality appreciated.

14
Member 4 Sales / Re: CB750F1 sohc Parts for sale
« on: November 28, 2025, 11:23:42 AM »
I also have a very good condition twin piston rear brake caliper, previously overhauled, with new seals and pads and is powder coated £150

A powder coated headlamp bracket one indicator arm slightly distorted £135

Top and bottom yokes, powder coated with taper bearing head races and all clamp/pinch bolts zinc plated £150

I can email photos

15
Member 4 Sales / CB750F1 sohc Parts for sale
« on: November 27, 2025, 02:52:14 PM »
Im having a clear out and will be making available parts from a 1977 model to help fund work on another one :)

Most of parts refurbished approx 10 years ago covered a short distance and stored in dry.

Frame, swing arm, headlamp and carbs not available

Generally complete assemblies ready to install and would prefer collection from near Guildford, Surrey.

Front Wheel complete with new bearings, disc, axle, speedo drive, tyre with minimal use, rebuilt with new spokes, Black powder coated rim £375

Rear Wheel complete with new bearings, axle,  disc, axle, tyre with minimal use, rebuilt with new spokes, Black powder coated rim £350

Front forks complete with new seals and caliper bracket £350

Battery carrier complete with rubbers and zinc plated fixing bolts, powder coated, ready to fit £60

Oil tank, powder coated with cap/dip stick £50

Motad stainless 4 into one exhaust and silencer £150

Top and bottom yokes, powder coated with taper bearing head races £150

I will list more later or let me know what you need and can send photos by Whatsapp or email

 

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