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SOHC.co.uk Forums => CB350/400 => Topic started by: McCabe-Thiele (Ted) on October 23, 2021, 05:32:04 PM

Title: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 23, 2021, 05:32:04 PM
My rear mudguard only has three holes for the rear number plate bracket I assume this isn't original as the grommets on the plate holder indicate four mounting points?

I can fit the unit by using the two upper rubber cushion mounts and the centre bolt hole on the bottom bracket as it was when I took it off.
Parts manual not much help as it appears to just show the upper mounts.

Is it for the USA model ?
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: Bryanj on October 23, 2021, 05:47:51 PM
If the parts book shows 2 different guards then probably
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: allankelly1 on October 23, 2021, 06:51:42 PM
Hi Ted

My original Uk plater holder had four bolt holes and so did the rear mudguard as you can see in the below picture

Hope this helps

Best wishes Al

(https://uploads.tapatalk-cdn.com/20211023/9eff405a0ad830d5784a465aacad2174.jpg)


Sent from my iPhone using Tapatalk
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: mike the bike on October 23, 2021, 09:03:09 PM
The US ones were chromed whereas the GB ones were painted black
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: allankelly1 on October 23, 2021, 09:39:29 PM
The US ones were chromed whereas the GB ones were painted black
Yes but both had four holes as I did a swap the one in the picture the other month to a chrome USA one


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Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 23, 2021, 11:27:52 PM
If the holes are in a triangular formation Ted then the guard is most likely a USA one. I do have a US number plate bracket around somewhere. As said they are chrome instead of black.
Yes they are in a triangular formation I have a chrome US type rear bracket but that also has 4 mounting points. I'll just use the three bolts with a rubber cushion on the lower bolt. The chrome is quite good on the mudguard so it's definetly been replaced by a PO.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 24, 2021, 06:51:26 AM
I'll post a pic of the 3 hole bracket I have, it's not too bad.

It's occured to me that I could just drill a couple of holes and put a nut on the back?
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: smoothoperator on October 24, 2021, 06:45:54 PM
My rear guard is ratty and has filler in it so I want to replace it. It has 4 mounting holes for the number plate bracket, the 2 lower ones being on a raised "hump", then 2 holes forward where it mounts onto the frame. I thought I had found a replacement with the one pictured below, but now I can see it is perhaps one for the US market. Any ideas on where to find a replacement welcome, I have been looking for a while now, so far to no avail. 2 pics of my guard also attached.
Title: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: allankelly1 on October 24, 2021, 06:51:36 PM
That’s intriguing

The American chrome plated one I have fitted from this supplier has three holes in the bottom so it fits both the four hole and three hole mudguards

(https://uploads.tapatalk-cdn.com/20211024/b1ab9c72fc732d86a452ff4da965c21b.jpg)


Sent from my iPhone using Tapatalk
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 08:44:18 AM
My rear guard is ratty and has filler in it so I want to replace it. It has 4 mounting holes for the number plate bracket, the 2 lower ones being on a raised "hump", then 2 holes forward where it mounts onto the frame. I thought I had found a replacement with the one pictured below, but now I can see it is perhaps one for the US market. Any ideas on where to find a replacement welcome, I have been looking for a while now, so far to no avail. 2 pics of my guard also attached.

Yes I can confirm that mudguard is extremely tatty.

The 3 hole version that some American bikes got has the 3 holes quite close together but in a triangular pattern. The one Al posted a pic of is the 4 hole version, the 3 hole doesn’t get that forward stretching piece of metal with the 2 upper mounting holes.

I don’t think the 500 guard fits the 400 which is a shame as I have 3 or 4 decent ones including a NOS 3 hole version.

My original painted bracket has a centre hole so I'm going to drill it out a bit more to take a rubber mount  - the mudguard is too good to consider change never mind the cost. My spare chromed mount has no centre hole.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: wildtapholer on October 25, 2021, 11:58:36 AM
I got an mint rear mudguard and it came with the plastic part which I didn't need all for £68 from America and that was including import duties, it was the correct one with the 4 holes, I had to do a lot of searching but they come up now and again, totally transforms the rear end.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 01:19:11 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: Nurse Julie on October 25, 2021, 01:23:21 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Ted, Graham may have a spare insert, I'll ask him later.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: smoothoperator on October 25, 2021, 01:50:20 PM
I got an mint rear mudguard and it came with the plastic part which I didn't need all for £68 from America and that was including import duties, it was the correct one with the 4 holes, I had to do a lot of searching but they come up now and again, totally transforms the rear end.
If you could let me know where you got it from that would be great. I have found one at Bertrums, out of stock for £330. Then one in the USA for $49.66 delivered free to UK. If it looks too good to be true, it probably is, springs to mind:

https://www.ericmisey.com/index.php?main_page=product_info&products_id=549736
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 02:05:03 PM
That's cheaper than a rechrome on my existing one & it has the correct four mounting holes. Is the customs duty plus overseas postage  $150 extra ? ;D
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 02:06:44 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Ted, Graham may have a spare insert, I'll ask him later.

Thanks NJ it would stop it crushing the rubber - I don't have any small tubing I can cut down - not even in plastic. Ted
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: Nurse Julie on October 25, 2021, 02:38:26 PM

Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Ted, Graham may have a spare insert, I'll ask him later.

Thanks NJ it would stop it crushing the rubber - I don't have any small tubing I can cut down - not even in plastic. Ted
Ted, could you measure the OD and depth please, would also help if I knew the part number.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: wildtapholer on October 25, 2021, 03:22:50 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Ted, Graham may have a spare insert, I'll ask him later.

Thanks NJ it would stop it crushing the rubber - I don't have any small tubing I can cut down - not even in plastic. Ted
I bought a couple of bags of the grommets and spacers from china, cheap but cheerful, does the job and a I cut them down to length, that's what I used on my number plate carrier if you look closely.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: wildtapholer on October 25, 2021, 04:03:02 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Had to paint it was too far gone, re-chroming is far too expensive and that's if you can find anyone who can be bothered to re-chrome it, had to buy a new tank filler cap  for the same reason+ the old one needed a new seal as well, this paint works really well from screw fix
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: wildtapholer on October 25, 2021, 04:06:06 PM
Nice rear fender you have there - what's with the chain guard - not chromed - is it a fully painted one ?

P.S. I've drilled out my mount and it fits a treat except I have no third collar insert - they seem to be unavailable.
Ted, Graham may have a spare insert, I'll ask him later.

Thanks NJ it would stop it crushing the rubber - I don't have any small tubing I can cut down - not even in plastic. Ted
I got these off ebay and cut the spacers down if they were too long.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: wildtapholer on October 25, 2021, 04:14:03 PM
I got an mint rear mudguard and it came with the plastic part which I didn't need all for £68 from America and that was including import duties, it was the correct one with the 4 holes, I had to do a lot of searching but they come up now and again, totally transforms the rear end.
If you could let me know where you got it from that would be great. I have found one at Bertrums, out of stock for £330. Then one in the USA for $49.66 delivered free to UK. If it looks too good to be true, it probably is, springs to mind:

https://www.ericmisey.com/index.php?main_page=product_info&products_id=549736
It was a breaker in America selling on ebay, his user name is,     bwd81
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 04:35:21 PM
Looking at my Stanley rear lamp unit its not too bad except the black rubbery gasket between lens & lamp body has been squashed up out of position - is there some trick to make the gasket unflatten itself so it can make a seal again where it's misshapen?

Perhaps heating in some strange Vat of Bat Urine  extract or similar?
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 04:40:06 PM
Be VERY careful ordering from Eric Missey. I just had a dispute with a seller who does exactly the same thing, pics of parts but they clearly ain't their parts, you can see logos from other sources in the pics, some are clearly private sellers as the pics are taken in the back yard etc.

I got my money back from PayPal after they first refused my claim as the seller gave a Fedex consignment number and claimed delivery of parts, it was only when I rang Fedex that they said it was delivered to an industrial address not residential and wasn't even in my name. This seller looks and display the same as that seller and when I went to search for parts my old searches were showing on his website.

You've been warned.

It's just too cheap to be a genuine seller imho.
Title: Re: On a genuine CB400/4 rear mudguard how many number plate mounting holes?
Post by: McCabe-Thiele (Ted) on October 25, 2021, 04:48:27 PM
Looking at my Stanley rear lamp unit its not too bad except the black rubbery gasket between lens & lamp body has been squashed up out of position - is there some trick to make the gasket unflatten itself so it can make a seal again where it's misshapen?

Perhaps heating in some strange Vat of Bat Urine  extract or similar?

Never seen a bat wearing a colostomy bag Ted.

Stick it in position first.

Preumably submerged in the Vat first though yes? lol
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