Akrapovic Exhaust bracket question - Yamaha R3 Forum
User Tag List

 10Likes
Reply
 
Thread Tools
post #1 of 14 Old 11-17-2019, 12:27 AM Thread Starter
Member
 
Join Date: Oct 2019
Posts: 32
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Akrapovic Exhaust bracket question

Recently picked up a used Akrapovic full exhaust for a good price, however discovered that the bracket on the pipe where the O2 sensor is located is broken.

A friend suggested that i just run it with the can attached at the hanger mount as the pipe is really light, however I'm worried about the stress at the header mounts. Is this something that any (good) welder should be able to do? Can anyone in NYC suggest a good place that does this work?

Thanks much in advance!
Attached Thumbnails
Click image for larger version

Name:	IMG_9337.jpg
Views:	12
Size:	152.7 KB
ID:	65703   Click image for larger version

Name:	IMG_9338.jpg
Views:	16
Size:	145.6 KB
ID:	65705   Click image for larger version

Name:	IMG_9339.jpg
Views:	10
Size:	122.8 KB
ID:	65707  
Philip Lee is offline  
Sponsored Links
Advertisement
 
post #2 of 14 Old 11-27-2019, 11:31 PM
Member
 
Join Date: Nov 2019
Posts: 40
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Hi, my bike came with the full Akro exhaust too but to be honest I am not a fan of it...it is just too loud. But as for mounting the exhaust I do not recomend leaving that exhaust hanging on the headers. There is too much stress on the headers if you were to mount it like that, especially if you hit a bump. Weld it in place, in the big apple there are many shops that'll do that for dirt cheap. Bring it to any shop and they'll probably be more than happy to weld those 2 pieces together at a fairly low price.
airhead83 and Philip Lee like this.
yamahar34life is offline  
post #3 of 14 Old 11-28-2019, 08:44 PM
Member
 
cornerslider's Avatar
 
Join Date: Nov 2019
Location: Oakdale, MN
Posts: 79
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
I am a professional Pipefitter/welder with 30+ years experience. (I'm a Pipefitter/welder in the heating/cooling world, not motorcycles) If you can get the material type from Akropovic, an experienced TIG welder should be able to help you. My guess is that even if you have the "Titanium" system, the headers are probably stainless steel. That's the way my Akrapovic Titanium system is on my FZ-07. If it is a grade 304 stainless, it gets welded with 308, or 308L filler rod. If it's grade 316 stainless, it gets welded with 316, or 316L filler rod. My advise, is don't look for the cheapest shop. Ask to see some of their work on stainless steel. If it doesn't look as good as the OEM welds, walk away. Exhaust headers are thin (to save weight), an inexperienced welder can make your exhaust system worse if the blow holes in it from welding it too hot. If you pull the exhaust system off for the repair (which any "good" shop would ask you to) ask them to secure it to a workbench for all the welding, AND cooling down. Stainless steel warps during welding, and especially during the cooling down!!! The best way to control that warping, is to secure it so it so it doesn't have a chance to warp in the first place. Hope that helps, good luck-
Philip Lee likes this.

"W.O.T. until you see God- THEN brake"
cornerslider is online now  
Sponsored Links
Advertisement
 
post #4 of 14 Old 11-28-2019, 11:04 PM Thread Starter
Member
 
Join Date: Oct 2019
Posts: 32
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks for the replies to the both of you, I agree regarding the stress on the headers and have already decided to get it repaired. I'll take the pro advice @cornerslider and be on the lookout for a good welder. Happy Thanksgiving to you both and the rest of the community!
Philip Lee is offline  
post #5 of 14 Old 11-28-2019, 11:34 PM
Member
 
cornerslider's Avatar
 
Join Date: Nov 2019
Location: Oakdale, MN
Posts: 79
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
One other critical thing I totally forgot to mention (it's second nature to me)...... Make sure they "purge" the header with Argon!!!! Argon is the same shielding gas they will be using to weld it. If you don't purge the inside during welding, there is a 100% chance it will "sugar" on the inside of the header. When stainless is heated, and exposed to the oxygen that is in the atmosphere, it crystalizes on the inside of the header into lumps that look like "sugar". These lumps will be the weak point in the repair, cause a slight exhaust restriction/turbulance inside header, and "may" cause another failure at that weld. Good luck, and let us know how it tuns out-
Philip Lee likes this.

"W.O.T. until you see God- THEN brake"
cornerslider is online now  
post #6 of 14 Old 11-30-2019, 11:55 AM Thread Starter
Member
 
Join Date: Oct 2019
Posts: 32
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Ha, it’s actually been pretty difficult to find someone in my town that will weld on stainless steel. I’ll need to branch out a bit and keep this thread posted
Philip Lee is offline  
post #7 of 14 Old 11-30-2019, 01:06 PM Thread Starter
Member
 
Join Date: Oct 2019
Posts: 32
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
@cornerslider , sorry I meant to PM you but apparently i'm a few posts short of being allowed to do so. I was wondering, you just seem to know your stuff, if I shipped the exhaust out to you would you do this work? If not, would you have any ballpark amount this work would cost (realize it's MN vs NY)? You can PM back

Thanks for all the advice so far, it's much appreciated!

-Phil
Philip Lee is offline  
post #8 of 14 Old 11-30-2019, 01:29 PM
Member
 
cornerslider's Avatar
 
Join Date: Nov 2019
Location: Oakdale, MN
Posts: 79
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
I don't have access to the equipment right now (I'm between contractors at the moment). As for cost, I would think $50-$75 would be fair. The time consuming part is the set up- securing it to the table, setting up the purge, etc. The actual welding is a five minute job. Maybe try to find a fabricator that does high-end sports car exhaust in your area? I know two of them in Minnesota if you can't find any locally. Good luck-

"W.O.T. until you see God- THEN brake"
cornerslider is online now  
post #9 of 14 Old 12-09-2019, 03:43 PM Thread Starter
Member
 
Join Date: Oct 2019
Posts: 32
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Just thought I'd give a quick update out of courtesy. I have a hookup that will be taking a look and will stop by a machine shop to see what they quote me. Thanks everyone for the advice! This forum seems a bit barren and it was refreshing to hear from people.
Philip Lee is offline  
post #10 of 14 Old 12-11-2019, 02:32 PM
Member
 
cornerslider's Avatar
 
Join Date: Nov 2019
Location: Oakdale, MN
Posts: 79
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 23 Post(s)
Quote:
Originally Posted by Philip Lee View Post
Just thought I'd give a quick update out of courtesy. I have a hookup that will be taking a look and will stop by a machine shop to see what they quote me. Thanks everyone for the advice! This forum seems a bit barren and it was refreshing to hear from people.
Good to hear!!! Take pictures, and let us know how the end product turned out-

"W.O.T. until you see God- THEN brake"
cornerslider is online now  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Yamaha R3 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome