muffler over heating and discoloration

Discussion in '2-Stroke Engines' started by lewsidius, Aug 23, 2011.

  1. lewsidius

    lewsidius Member

    hey guys
    my muffler over heats to the point of discoloration
    i am kinda stuck
    i think its too lean
    but i have the carburetor pin on all the way rich
    what do i do???

  2. HeadSmess

    HeadSmess Well-Known Member

    the question is...does it RUN like its too lean? dont jump at shadows :p

    when blocked they can heat up a bit...
  3. lewsidius

    lewsidius Member

    so should i take apart the engine and check for gunk
    its a new muffler too
    so i dont think the muffler is cloged but the engine could be?
  4. dodge dude94

    dodge dude94 Member

    It is a catalytic muffler or a straight-through?
    Catalytic muffler WILL get hot, since it has to get hot to clean the emissions out of the exhaust.
    Or it could just be a crappy muffler and is discoloring due to engine heat.
  5. lewsidius

    lewsidius Member

    its a new muffler
    a banana shaped one
    i also noticed
    it makes a pop pop pop pop and then when i up the rpm the popping is faster
    but when i max my speed it sounds alot cleaner and runs better without the popping at all?
    any thoughts:detective:

    Attached Files:

  6. dodge dude94

    dodge dude94 Member

    Ah, expansion tube.
    Have you tightened your exhaust nuts yet?
    I am really thinking exhaust leak.

    The chrome WILL discolor if it is chrome, that is just the way it is.
    Check out most Harley's, their exhaust usually isn't perfect.
  7. ddesens

    ddesens Member

    My stock muffler discolored near the head. It runs great. nothing but normal for sure.
  8. lewsidius

    lewsidius Member

    yeah i dunno
    im paranoid
    my las muffler "the stock muffler"
    i smacked on a curb then it got run over
    so i banged it back in place and spot welded but it fell apart at a higher point
    and so i got a new one
    its nice
    but im very cautious of this one
    it heats up preety good
    and the spark plug boot it holds together
    but the threading for the metal component on the rubber is worn from the heat
    so i dont know if this is normal or
    not i think it may be too hot
  9. dodge dude94

    dodge dude94 Member

    I understand most of this post but.....what?!

    As long as it runs fine, you should be fine.
    Pull your spark plug and look at the coloring.
    If its like a light-medium brown you should be ok.
  10. HeadSmess

    HeadSmess Well-Known Member

    i love this guy
    he writes so well
    its almost like haiku or shakespeare

    i like it :D

    so about the boot
    sparkplug boot
    throw it away!
    get an NGK!
    boot that is.
    from an old motorbike
    it just unscrews!
    from the lead.
    and the box.
    black box.
    replace the lead and boot.
    trouble free for ever more. :)

    dont worry about the pipe.
    purple is cool :)
    and blue is too
    glowing red isnt so good :eek:

    and yes, check your plug.
    at the point.
    should be light brown. almost to white.
    and then it is right :)

    wee :)
  11. Sgt. Howard

    Sgt. Howard Member

    And do please note
    that those who write
    in Haiku
    that ain't quite right
    while good advise
    they do transmit
    their own day jobs
    they do not quit
    for wisdom's well
    of verse that stands
    seldom springs
    from greasy hands
    and while they quell
    your fair complaint
    'tiss sure that Longfellows they AIN'T!!!
    HARHARHARHARHAR!!!!- he who laughs last... probably didn't get the joke...
    the Old (Undermedicated) Sgt.:jester: