markddapexgt
Extreme
Iceman57 said:If you can get the copper donuts made up let me know and I will order a set of them from you and see how they hold up. I think if they used the spring fasteners like on the 2 stroke exhaust they might hold up better. Which SS headers did you use Bender or Excell?
I was going to get a local machine shop to make some up by just giving them a pattern using a new donut. I'll let you know if I can get them done later this week.
I used the Bender pipes but had difficulty installing them as the ends that mate with the muffler are larger diameter and straight cut. This makes them difficult to insert into the muffler section plus I had to cut the pipes as they were touching in the tunnel and wouldnt allow correct alignement at the header flanges. See my post "How to save yourself some beer while installing Bender Y pipes" !! It shows the photos too.I also posted "Yamaha runs on Junkin Donuts" with pix to show the damaged donuts.
I think you are better off with the Excel pipes from Allen. They look much better made and have the bevelled ends to allow easier fit into the muffler. They are about $100 more but also claim an increase in power. I think the extra is well worth it and was sorry I didnt see these before ordering the Bender pipes.
On the Loctite question. I have been using Loctite Blue - seems to work OK.
Here are the links to the posts if this is useful
Installing Bender Pipes
http://www.ty4stroke.com/viewtopic.php?t=68816
Junkin Donuts!!
http://www.ty4stroke.com/viewtopic.php?t=68825