FMF Factory 4.1

2 replies to this topic
  • ReedRulz

Posted November 26, 2009 - 04:30 PM


I have a 2007 YZ450F with FMF Factory 4.1 exhaust I crashed pretty hard and bent a dent in the end cap and I have another muffler with a good end cap and was wondering if I can take it off and put it on the other muffler. If so how do you get it off?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • KJ790

Posted November 26, 2009 - 08:33 PM


Yes you can, you have to drill out the rivets and rivet the endcap back on. I'm assuming you have another factory 4.1 that you are stealing the end cap from. You won't get an end cap from a different type of pipe to fit.

  • ReedRulz

Posted November 26, 2009 - 09:18 PM


Yes I have an old 4.1 with a good end cap. Thanks for your reply.

Related Content


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Megabomb Fitment by 288yz450

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply

First Hare scramble tips by dhend8

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies

YZ450F 03 Sparks driving me crazy by SirAttard

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.