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F344

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  1. OH NO! I just talked to my welder and he suggested a different way to do this that is a million times easier....

     

    Remove the sleeve just as I did, but then just cut a 3 x 6 inch opening in the SIDE of the muffler can near the rear. Then you can pull out the packing and the welder will have a simple job welding the removed piece back in without all the alignment and tweaking that cutting the end off entails!

     

    I'm going to edit step one to mention this.

    5_grind_complete.JPG

  2. About this point I threw my back out and had to stop - :homer: Ouch! So the rest of this story will have to wait until I'm up and around again.

     

    Also, I took some db readings with a cheap radio shack db meter.

     

    Stock was 75 db at idle, 85 db at 2000 rpm and 88 db reving to 4000 rpm.

     

    No cans, straight out of the x-over was 100 db at idle.

     

    I didn't measure the modded cans yet, but I did, put one modded can on the bike and the sound was about half way between stock and the bare x-over.

     

    I would take the absolute db numbers with a grain of salt. But the relative values should be indicative of the final results.

    9_packing_is_out_2.jpg

  3. photo 5

     

    4. and 5. In these photos you can see the 2 welds you are going to have to cu through. The outer perimeter weld is easy to reach with a hand grinder. The inner perimeter weld is much harder to reach. Note the angle the inner pipe intercepts the outer plate. After having seen this on my first can I was able to do a cleaner job on the second.

    5_grind_complete.JPG

  4. photo 4

     

    4. and 5. In these photos you can see the 2 welds you are going to have to cu through. The outer perimeter weld is easy to reach with a hand grinder. The inner perimeter weld is much harder to reach. Note the angle the inner pipe intercepts the outer plate. After having seen this on my first can I was able to do a cleaner job on the second.

    4_Grind_almost_complete.JPG

  5. photo 3

     

    3. I found that tapping on the 1" exhauset outlet with a block of

     

    wood to cushion the lip worked better that trying to use the wood

     

    to tap the main plate surface. There is white fiberglass layered

     

    between the outside of the stainless can and the inside of the

     

    alum sheath. Do not get the fiberglass on you, it is very

     

    irritating. Use masking tap to cover and contain the glass as it

     

    becomes exposed.

    3_Tapping_core_out_of_alum_sheath.jpg

  6. photo 1

     

    Before you start this, I have to say that it is probably a better idea to just go out and buy some other cans. I'm waiting on some TI cans from MG, but the dealer says they might take a while to arrive. I also got a spare set of cans on ebay for $75 so I decided to tinker.

     

    That said... here you go.

     

    BUT WAIT!!!!!!!!

     

    READ THIS...

     

    OH NO! I just talked to my welder and he suggested a different way to do this that is a million times easier....

     

    Remove the sleeve just as I did, but then just cut a 3 x 6 inch opening in the SIDE of the muffler can near the rear. Then you can pull out the packing and the welder with have a simple job to weld the removed piece back in without all the alignment and tweaking that cutting the end off entails!

    1_Cans_on_bike.jpg

  7. I knew the FBF kit would lean the mixture. I've been having a little trouble with plug loading so I was interested in quantifying the leaner mixture. I have a temp gun thermal reader (from tempgun.com) so I measured the exhaust pipe at the bottom of the arc in front of where my toes would be if I was riding the bike. I had to take the reading here because the temp was above the gun range at the head. Anyway, the results:

     

    Stock configuration at 2500 rpm lt 270 F rt 297 F

    w/ FBF airbox at 2500 rpm lt 322 F rt 336 F

     

    These numbers in the absolute of course mean nothing. But the 40 to 50 F increase in egt means a fair bit leaner. I'll be watching my plugs to see if they run clean now.

     

    Frank

  8. 2 weeks ago I sent these guys:

     

    http://daes-mototec.de/

     

    A wire transfer to order a set of adjustable clip-ons. (see photo below) The transfer was completed early last week. Since then Das Mototec hasn't responded to any email.

     

    Their website lists their phone number as: "07176 - 3729" I found the country code for Germany to be 49. I'm dialing 011 - 49 - 07176 - 3729 and the call doesn't go through. (From California)

     

    Does anybody know if I need a city code too?

     

    Their full contact info is:

     

    Kontakt:

    Däs Mototec

    Gschwender Straße 34

    D-73577 Birkenlohe

    Telefon: 07176 - 3729

    Fax: 07176 - 1388

    e-mail: info@daes-mototec.de

    3962z1.jpg

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