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Trying to get my muffler off of my Yamaha L5T but am having no luck. Any tips or tricks to getting this off?

  • do you have a picture? Is this the OEM muffler? What year is your bike? Thanks and cheers! – DucatiKiller Mar 15 '16 at 6:50
  • I just searched for that. Cool bike! Anyhoo... cant tell from photo. Is it a one piece exhaust? Can you be more specific? Are you removing the baffles? Or the whole thing? Is the nuts where the pipe meets the cylinder head? – Sir Swears-a-lot Mar 15 '16 at 9:03
  • I'll take a picture of it and post once I'm home today. I've been drenching that thing in liquid wrench for a couple days now. @DucatiKiller it's a 69 100 L5T – ahendren Mar 15 '16 at 16:24
  • Did you get the exhaust off? – DucatiKiller Apr 1 '16 at 21:42
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Exhausts can be difficult to remove. In many cases constant heating/cooling has burned off any coatings and the bare metal has corroded or rusted the nuts and studs together.

If the exhaust has cylinder head studs with exposed nuts you can try several things.

  1. Start by soaking them with a penetrant oil. Only do this when the exhaust is cool enough to touch. You can then try tapping with a hammer or using an impact driver to free them up.
  2. Heat the nuts with a blowtorch and try to undo them.
  3. Cut, chisel or drill the nuts off. This is my preferred method. Nuts are easier to replace than broken studs.
  4. A combination of the above.

Take your time. The more force you apply the bigger the risk if stripping or snapping a stud. Try not to damage the stud thread as they're harder to fix.

If you round off the nuts, they're junk anyway. So it doesnt matter if you destroy them in the process.

Once you do have them off its worth cleaning up the threads with a tap and die set. Replace rusty nuts. And when reassembling use something like a copper thread grease so its easier next time.

  • You forgot the tried and true method: Sawzall. Good answer! – Pᴀᴜʟsᴛᴇʀ2 Mar 15 '16 at 11:20
  • I had to Google that... We call them "Recipro-saws" or "Demo-saws" here. :) – Sir Swears-a-lot Apr 17 '16 at 23:50
  • As you figured out, it's just a brand name. Doesn't matter the name, those things will tear some stuff up! – Pᴀᴜʟsᴛᴇʀ2 Apr 18 '16 at 0:34

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