1. 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

Decatting the TE511 Muffler...

Discussion in '4 Stroke' started by Motosportz, Apr 2, 2011.

Page 1 of 6

  1. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Got a spare muffler and decatted it. Was fairly EZ, drill the rivets take out the front of the pipe and use a Sawzall, grinder, and a lot of searing and it is off. :D In use does not get louder, is WAY cooler running and seems to have gained some roll on and top end power. Need to get a real ride in. Put the SA back in and it is nice and quiet. The muffler is still on the heavy side though.

    [IMG]

    [IMG]

    [IMG]

    I drilled holes in it to see how deep it was...

    [IMG]

    Works great and is quiet. There is no real packing in the muffler and should never need work / rebuilding. It is a three chamber affair inside.

    [IMG]

    BTW super EZ to take off the pipe. Three bolts and it is in your hand.
    Motosportz, Apr 2, 2011
    #1
    BigUtSwede, SDPUTTER and Muddy Waters like this.

  2. HUSKYnXJnWI Husqvarna
    AA Class

    Location:
    Central Wisconsin, USA
    Husqvarna Motorcycle:
    09TE450
    that was easy!!!

    Nice- I like that muffler now. It will be much cooler for you, and your motor will love you for it.
    HUSKYnXJnWI, Apr 3, 2011
    #2

  3. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Rode it yesterday... WOW Went into "race map II" mode on it's own (it knows what i am up to) and gained bark off the bottom and afterburners on top. It is super quiet and deceiving but the corners come up REALLY fast. Still runs smooth and perfect just faster. LOVE this bike.
    Motosportz, Apr 4, 2011
    #3

  4. Fast1 Husqvarna
    AA Class

    Location:
    Minneapolis, MN
    any change in your MPG with the hot cat out?

    That cat looks identical to the ones found in Yamaha personal watercraft. At times they will fail and the center contents of the cat is expelled out the pipe.
    Fast1, Apr 4, 2011
    #4

  5. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Have not checked fuel mileage yet with the cat out. will do soon.
    Motosportz, Apr 4, 2011
    #5

  6. MChammer Husqvarna
    AA Class

    Location:
    North Annville, PA
    An ORANGE sawzall??????[IMG]
    MChammer, Apr 4, 2011
    #6
    doubletap likes this.

  7. moto66 Husqvarna
    A Class

    Location:
    England
    Good move! That cat looks really restrictive, more so than the SMR one. Can't help but think removing them is the only way to go as after fitting the power up, mine were choking up black after 800 miles.

    P1020951.JPG
    moto66, Apr 4, 2011
    #7

  8. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Mine had a much tighter grid / holes. it made a good difference in power thats for sure. EFI saw it and changed maps for me. COOL
    Motosportz, Apr 4, 2011
    #8

  9. moto66 Husqvarna
    A Class

    Location:
    England
    Do you think you will get a dyno run to check the air/fuel? It's something I'm thinking about but the gutted cans are much as the aftermarket Arrows so the race map should be pretty good [IMG]
    moto66, Apr 4, 2011
    #9

  10. rancher1 Husqvarna
    Pro Class

    Location:
    WA
    Don't worry, that is a Can Am sawzall !
    rancher1, Apr 4, 2011
    #10

  11. McKay Husqvarna
    AA Class

    Location:
    Sanger, Ca
    Husqvarna Motorcycle:
    2015 FE350S, 2016 TE300
    Old thread from the past, getting ready to do mine now, why didnt you just cut the inarrds out as opposed to cutting the pipe?
    McKay, May 8, 2012
    #11

  12. Runner Husqvarna
    AA Class

    Location:
    Los Angeles, CA
    Husqvarna Motorcycle:
    2006 TE510
    1. Would grinding away the weld bead shown in the second photo allow removal of the catalyst without cutting?
    2. If you have not put it together already, please take a photo of the muffler section.
    Nice work.
    Runner, May 8, 2012
    #12

  13. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many

    Feel free to get it out anyway that looks EZ to you. That last pic is the view down the inside of the muffler. It is a weird mutli chambered muffler with no real packing.
    Motosportz, May 8, 2012
    #13

  14. oregonsage 4st Clerk

    Location:
    Dry Washington
    Husqvarna Motorcycle:
    FX450
    Other Motorcycles:
    Yamaha DT400 x 2, BMW G310R
    Husqvarna lawn implements are orange..probably part of that lineup :confused:
    oregonsage, May 8, 2012
    #14

  15. McKay Husqvarna
    AA Class

    Location:
    Sanger, Ca
    Husqvarna Motorcycle:
    2015 FE350S, 2016 TE300
    Good God, that mesh must be made of Kryptonite, you aint drilling that out! BTW mine is plugging up, Ive got about 400 miles on the bike. Kellys looks like it was lean at the time, mine is nice and black thanks to JD. :applause:

    Kelly, there is no EZ way, your too nice. Its a PITA and Im an aircraft mechanic with a box full of sheetmetal tools. Best way I think is to get that flange bent out of the way so you can see the welds in the back, the flange (small one, welded to cat) is only there as a deterent to us monkeys removing the cat, its very effective but not unbeatable. The sawzall is probably the best bet from the uncovered backside.
    McKay, May 8, 2012
    #15

  16. Rearwheelin Husqvarna
    Pro Class

    Location:
    Bakersfield , OffroadAfornia
    Husqvarna Motorcycle:
    2013 XCW 300
    Rearwheelin, May 8, 2012
    #16

  17. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    4" fiber saw was my best solution. Worked well. It just killed the sawzall blades i had like nothing.
    Motosportz, May 8, 2012
    #17

  18. rt3856 Husqvarna
    A Class

    Husqvarna Motorcycle:
    2011TE449
    I appreciate you guys doing the experimentation.
    So I copied what you did.
    WOW! Oh! Yeah!:D
    This was noticable right off! Woo! Hoo!
    rt3856, Feb 3, 2013
    #18

  19. Tinken Husqvarna
    Pro Class

    Location:
    Hesperia, CA
    Husqvarna Motorcycle:
    MY12 WR511
    Other Motorcycles:
    Yamaha
    Aftermarket exhaust is even more impressive.
    Tinken, Feb 3, 2013
    #19
    Mr Ford40 likes this.

  20. K5PL5 Husqvarna
    Pro Class

    Location:
    Palmyra, PA
    Husqvarna Motorcycle:
    2012 WR300
    Other Motorcycles:
    03 Suzuki SV1000/73 Honda CB350
    My TE de-catted:D photo 1 (2).JPG
    K5PL5, Feb 5, 2013
    #20
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