Muffler Screens ??

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Sethro

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I have been doing my own muffler mods for a few years.I want to start putting spark screens in them.I am curious on what you guys have come up with on ways attaching the screens to a tube type muffler ports.I don't have a spot welder either.
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Sheet metal screw and a bent tab. Sometimes just two tabs on the screen and two slots in the muffler. Most times no screen.
 
Makita 6401 Muffler Mod

I did'nt use the two 1/2 pipe ports coming straight out of the muffler like I had previously on the 7900's.Bark burning is a issue that way.On the 6401,I put in one 3/4 pipe port coming out to the left side of the muffler.I drilled out a cap to slide over the pipe&spark screen and used a small self tapping screw to hold the cap/screen.
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