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Le_Racer

Silencer repacking

10 posts in this topic

Salut!

Repack that silencer, you will notice a much improved response off the low end and gain a little all the way up.

I've used different kind of packing and the best I found is the original Yamaha packing that I got with my 2001, ready to put in with the stainless wool and screen like the one fitted at the factory.

Later

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I have used stainless steel wool to repack. It works great and lasts 10 times longer than anything else I have tried. It was recommended to me by Larry Roeseler and he knows 4-strokes!! Pack it as tight as possible.

yzernie

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I noticed that my 00 426 is louder than my friends 01. Is there a way to repack the silencer on it? Rich R. had said that they use a different type of packing on these silencers. Any suggestions?

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I tried steel wool and it burned right through my pipe, number plate-and stayed burning on the track. It was a night race and at least I got a lot of time on the PA....

Anybody got some real (permanent) ideas/solutions for silencer repacking? I've done it about ten times... I end up just buying somebody's old silencer.

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Originally posted by teggers:

Anybody got some real (permanent) ideas/solutions for silencer repacking

Teggers,

Unfortunately, there is no "permanent" solution for muffler repacking. These bikes put out such a hot exhaust that anything you put in there will have to be replaced eventually. The stainless steel wool will last much longer than any fiber packing....even the Yamaha stuff. I can get about three months out of mine and that includes practicing once or twice a week, play rides with the wife and kid and racing almost every weekend. That is about as "permanent" as you can get.

Ernie

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The mid section should have some indents to clear the frame and subframe. The bottom of the muffler might have a dent on it to clear the rear brake caliper.

Ernie

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