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Stupid trials question thread...

Discussion in 'Trials' started by Garthe, Nov 2, 2014.

  1. MATTY

    MATTY BORDER RAIDER

    Joined:
    Jun 23, 2014
    Oddometer:
    5,367
    Location:
    England On the Scotish border
    Tell me about it my 125 sherco had a slightly buckled pree tail pipe section, down to it going soft . Annoying and it just went not much warning at all. I will straighten it one day. Well i might. :lol2
    Yinzer Moto likes this.
  2. Huzband

    Huzband Team Dirt

    Joined:
    Oct 4, 2006
    Oddometer:
    11,301
    Location:
    Cowford, Fl.
    I wouldn't bother. Won't make a difference unless the appearance bothers you.
    MATTY likes this.
  3. MATTY

    MATTY BORDER RAIDER

    Joined:
    Jun 23, 2014
    Oddometer:
    5,367
    Location:
    England On the Scotish border
    :lol2Yes Its ok. Adds character. Custom personalisation. :lol2
    Brewtus and Huzband like this.
  4. OR Trail

    OR Trail looks for unlocked gates

    Joined:
    Nov 16, 2005
    Oddometer:
    497
    Location:
    Portland, OR
    Griz - here's what I do on my '15 Evo:
    I removed the can after the header (and only dealt with that end of it)
    Disassemble, remove the packing - end cap comes off the Evo (not the case with all brands). Getting the spark arrester off was the toughest part.
    Scrape out any big deposits
    Spray degreaser into the open end of the muffler, hose it out after soaking
    I left the packing in solvent overnight, then wrung it out and sprayed it off. New packing would be easier, but I reused it.
    Things were pretty clean at the end of this, hope that helps.
  5. lineaway

    lineaway Long timer

    Joined:
    Oct 1, 2011
    Oddometer:
    12,403
    Yeah, burning pipes is the way to go if it's STEEL.
    Brewtus likes this.
  6. MATTY

    MATTY BORDER RAIDER

    Joined:
    Jun 23, 2014
    Oddometer:
    5,367
    Location:
    England On the Scotish border
    Caustic soda & water works on the older steel exhausts with wire and baffle pipes.
  7. Takataka

    Takataka Been here awhile

    Joined:
    Sep 26, 2014
    Oddometer:
    615
    Location:
    NZ
    I'm interested in how much quieter this makes an exhaust.

    My TRS is so much noisier than when new and it annoys me (and others around me). It was ok for the first 150 hrs or so but at 240 hrs it's now horrible.

    I have replaces rear silencer packing which helps a bit (have tried different packing materials and tightness of packing but that makes little difference.
    I use Motul 710 at 90/1 mix.

    Do I need to buy a new exhaust, just put up with the noise or is there a fix?
  8. MATTY

    MATTY BORDER RAIDER

    Joined:
    Jun 23, 2014
    Oddometer:
    5,367
    Location:
    England On the Scotish border
    Clean it out as above, I tried a few different packings.
    First on the sherco i used silent sport, it was real quiet to start with, but soon sludged up and it seemed to be a condensation " a steamer" Maker never did work out why that was i just put it down to cold weather here.
    I rebuilt the system on an RTX which has a big chamber and a tail silencer and baffle section. i did use silent sport or what was left of it from the sherco, in the tail section. But i got some FMF stuff for the big chamber and it worked pretty good. I will do the Sherco again but this time ill use FMF its not as quiet as the silent sport in my opinion, but its layers are less sludgy if you get me.
  9. Yinzer Moto

    Yinzer Moto Sloppy 300 rider Supporter

    Joined:
    Jun 13, 2008
    Oddometer:
    41,874
    Location:
    Pittsburgh PA
    I don’t know much about the TRS muffler but this Sherco muffler has “lifetime” packing in it. It needs to be cut open to repack it. The exhaust was loud and had a loud crack to it. This lightened the muffler up a good bit and it is quiet again. The bike is 15 years old and I am sure this was the first time. The head pipe also had significant build up. A laser thermometer might be good to use, monitor temps and stay below the aluminum melting point.
    Takataka likes this.
  10. grizCP

    grizCP RMTA

    Joined:
    May 9, 2010
    Oddometer:
    765
    Location:
    Chipita Park, CO
    What about the Ti factory pipes?
  11. Takataka

    Takataka Been here awhile

    Joined:
    Sep 26, 2014
    Oddometer:
    615
    Location:
    NZ
    Titanium has a higher melting point than steel. I'm not sure if it glows red though as a warning like steel does..
  12. lineaway

    lineaway Long timer

    Joined:
    Oct 1, 2011
    Oddometer:
    12,403
    I have a few dents in mine that I have been meaning to repair. To burn a pipe out you start it with a torch and then just feed it oxygen. The trouble is it could get way from you depending how much carbon is really in the pipe. The other problem is what color is the TI going to be when done. Go ahead and let me know how it goes. The bike does not run any how. By the way that was not a transmission disaster!! :imaposer
  13. Harvey Krumpet

    Harvey Krumpet Long timer Supporter

    Joined:
    Dec 26, 2011
    Oddometer:
    2,237
    Location:
    The Shaky Isles
    Speaking of things heating up.

    Any suggestions on how to fix a bent alloy gear lever without me snapping it?

    Pretty sure it's cast, el cheapo on my GG Randonee.
  14. Junglejeff1

    Junglejeff1 Long timer

    Joined:
    Oct 20, 2016
    Oddometer:
    4,984
    Location:
    Upper Michigan
    You can heat it were you bend but it will be soft and bend easy after that.
  15. MATTY

    MATTY BORDER RAIDER

    Joined:
    Jun 23, 2014
    Oddometer:
    5,367
    Location:
    England On the Scotish border
    Secret with straightening that lever, is not to get it too hot, heat it stay in contact and as soon as it gives get the heat away cool it off.
    I watched Bill Morris a old Side car racer friend back in the 1970s straighten a Alloy brake lever in a Rear set by Clamping two welding clamps on the lever and effectively short circuiting the whole thing with a cheap air cooled arc welder the lever went soft as and he straightened it in two seconds. Did not even look to be hot to me, i dont think you need much heat at all . He was a character but never lend him your hobby welder.and i am not sure its a good idea to try and emulate him for a second. Just heat it up and be gentle it will bend back fine but if you over heat it you might find its soft as junglejeff mentioned.
    Harvey Krumpet likes this.
  16. grizCP

    grizCP RMTA

    Joined:
    May 9, 2010
    Oddometer:
    765
    Location:
    Chipita Park, CO
    What defines a disaster if replacing the case (both sides) and input shaft doesn't? I guess it could have been way worse if this happened in the Ute Cup halfway through the loop. I was 30 feet from my garage when it happened, so I'm pretty lucky there.
    Mike D likes this.
  17. lineaway

    lineaway Long timer

    Joined:
    Oct 1, 2011
    Oddometer:
    12,403
    It was more like this.
    :dhorse:bash:doh
  18. Takataka

    Takataka Been here awhile

    Joined:
    Sep 26, 2014
    Oddometer:
    615
    Location:
    NZ
    When I was still working as a toolmaker we used the soap method for annealing aluminium/aluminum alloys
    http://www.technologystudent.com/equip1/heat3.htm

    I'm going to do some tests with scrap to see how close to melting point the soap turns. Maybe it will work as a warning when burning out gummed up exhausts.
    jonnyc21 and Junglejeff1 like this.
  19. y4m4

    y4m4 Calvin

    Joined:
    May 24, 2009
    Oddometer:
    648
    Location:
    Federal Heights, CO
    This would probably work really well, but you need to be careful. Caustic soda is sodium hydroxide, AKA lye, and it can dissolve aluminum. Just be careful.

    You can buy sodium hydroxide in solution as Super Clean at Walmart. It's useful, but don't use it on your motorcycles.
  20. Junglejeff1

    Junglejeff1 Long timer

    Joined:
    Oct 20, 2016
    Oddometer:
    4,984
    Location:
    Upper Michigan
    20200423_165116.jpg on the fantic I corked it up and filled it almost full with diesel fuel.The fuel desolved much of the spooge in the packing and then I rinsed out with water a few times.The diesel pulled a lot of the oil caught in packing out and when done pipe was quite a bit lighter. Did not want to chance using heat on a hard to get pipe.
    Brewtus, GTC, Huzband and 3 others like this.