Also Check Out
ATVFlorida.com
PinballShark.com

© 2014
HondaCB1.org Message Forums
July 09, 2020, 01:12:02 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Welcome to HondaCB1.org! Please register in the Forum to post messages or view attached photos.
 
   Home   Help Search Login Register  
Pages: [1]
  Print  
Author Topic: Lower Exhaust mount bracket  (Read 3116 times)
silviaps13
Jr. Member
**
Offline Offline

Posts: 6


View Profile
« on: October 28, 2018, 07:40:22 PM »

Hi there,

I'm in the process of cleaning up my frame before paint and found a broken bracket which i believe is for the lower exhaust mount. Can't seem to find any good pictures of what it should look like in my manuals. Do any of you guys have a picture of this area? Just below the center stand?

Thanks

https://imgur.com/0MofRQf

https://imgur.com/jiFGKdd
« Last Edit: October 28, 2018, 07:42:19 PM by silviaps13 » Logged
filterMan
Full Member
***
Offline Offline

Location: N/W England

Posts: 167



View Profile
« Reply #1 on: October 30, 2018, 10:04:23 AM »

It looks broken but unless mine is broken in the same way I think that's how it should look. I've attached a photo, please ignore the dirty state of my bike, it's in daily use.

Hope this helps  Cheesy


* LOwer mount 2.JPG (86.07 KB, 1194x851 - viewed 226 times.)
Logged
silviaps13
Jr. Member
**
Offline Offline

Posts: 6


View Profile
« Reply #2 on: October 30, 2018, 12:59:47 PM »

Oh, That's interesting. I thought that was going to be where the manifold bolted. My bikes manifold wasn't bolted to anything at that lower position, maybe it's a common part to fail?

Thanks!
Logged
filterMan
Full Member
***
Offline Offline

Location: N/W England

Posts: 167



View Profile
« Reply #3 on: October 30, 2018, 01:39:25 PM »

I just had a look in the service manual and there is supposed to be a long bolt that I don't have, attached to a bracket that I don't have either. So you are probably correct, it's a common point of failure. I can say though that mine has been missing for more than 7 years so it must be a bonus item if anyone has this still.

It would be interesting to hear from others?
Logged
Spurlock
Full Member
***
Offline Offline

Location: N. California

Posts: 135


View Profile
« Reply #4 on: October 31, 2018, 09:57:44 AM »

Hi there,

I'm in the process of cleaning up my frame before paint and found a broken bracket which i believe is for the lower exhaust mount. Can't seem to find any good pictures of what it should look like in my manuals. Do any of you guys have a picture of this area? Just below the center stand?

Thanks

https://imgur.com/0MofRQf

https://imgur.com/jiFGKdd

Definitely broken, here's what it should look like - steel tubing holding a rubber bushing for the mounting bolt:



-Bill
Logged

1975 Honda CB125S2, 1989 Honda NX250, 1989 Honda GB500, 1989 Honda CB-1, 1997 Honda CB50V
a_morti
Hero Member
*****
Offline Offline

Location: Malta

Posts: 2096



View Profile
« Reply #5 on: November 01, 2018, 01:36:35 PM »

I think a lot of them are broken off just there, but the exhaust never seems to suffer because of it. Maybe the bike vibrates a little more than it would? Hard to say.
Logged
silviaps13
Jr. Member
**
Offline Offline

Posts: 6


View Profile
« Reply #6 on: November 01, 2018, 06:53:08 PM »

Thanks a lot for that picture Spurlock, I should be able to build that, I'll source the rubber bushings to find the ID of that tube! Also looks like the Coolant reservoir vent tube lives in the hole of the bracket.

Cheers
Logged
silviaps13
Jr. Member
**
Offline Offline

Posts: 6


View Profile
« Reply #7 on: March 09, 2019, 12:28:32 AM »

Forgot to post my results here but here is what I came up with, its a little thicker material than the factory piece so hopefully it should hold up alright!

https://imgur.com/zRXmYvL
Logged
a_morti
Hero Member
*****
Offline Offline

Location: Malta

Posts: 2096



View Profile
« Reply #8 on: March 09, 2019, 04:22:32 PM »

Forgot to post my results here but here is what I came up with, its a little thicker material than the factory piece so hopefully it should hold up alright!

https://imgur.com/zRXmYvL
Nice work
Logged
uglygit
Jr. Member
**
Offline Offline

Location: Birmingham - England

Posts: 86



View Profile
« Reply #9 on: April 05, 2020, 03:07:35 PM »

The one in silver looks slightly bent probly worth straightening up, the collector can ground on tall curbs if you ride down them.

The breakage i would say is a combination of corrosion after market silencers and accidents stressing the steel over the years it is a very weak bracket.

My bike suffered this I was running an slip on can for a while and had to weld the bracket back back on.

The replacement frame from my donor bike had a standard exhaust and this joint looks in good shape.

Another thing to check even on Japanese spec bikes is the collars that the exhaust clamps to the head by, they are mild steel at the head end and WILL rot out allowing the header pipes to come loose, blow and vibrate

I have had to grind mine clean and build them back up with weld to get the square and flat.
Logged

AKA
BCF- prawny1

400greybike- cannot log in forgot details and won't let me re use my email address Sad

hondacb1.proboards.com- prawny1

hondacb1.org- uglygit
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!