Do you repack your own mufflers?

SrfNdirt
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SrfNdirt
How hard can it be? Figure if I can change a tire that repacking the muffler should be easy.
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Hoseclamp
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Hoseclamp 8/26/2019 11:06am
8/26/2019 11:06am
Yep. If you can change a pain in the ass tire, muffler packing is a walk in the park
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RCMXracing
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RCMXracing 8/26/2019 11:32am
8/26/2019 11:32am
Get the good packing like silent sport or similar that is like yarn. Dunno what muffler you have but do know the Yosh repack kit comes with the quality stuff and bands/rivets. The steel rivets are gnarly. I bought same size in aluminum.

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Carlton_Fartman 8/26/2019 11:39am
8/26/2019 11:39am
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then don't go back together good either after being hit repeatedly with the dead blow.
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Harry Backmon 8/26/2019 11:46am
8/26/2019 11:46am
SrfNdirt wrote:
How hard can it be? Figure if I can change a tire that repacking the muffler should be easy.
It's not hard at all. Go for it. Caveat...if the muffler is old and never been repacked, it might be a pain to get it apart. But please make every effort to get it done. Loud bikes with blown packing are super annoying.
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Moto520
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Moto520 8/26/2019 12:12pm
8/26/2019 12:12pm
it's a major pain in the ass. Things are just kind of mashed together so the difficult part is pulling the canister off of the inner core. I actually bent mine to shit the last time i did it so take your time!
SrfNdirt
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SrfNdirt 8/26/2019 12:12pm
8/26/2019 12:12pm
Bike is a ktm350 w/ 25 hrs. Probably will give it a go.
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spacecat
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spacecat 8/26/2019 12:19pm
8/26/2019 12:19pm
This is the one thing that makes owning a Honda awful. Two silencers. Why Honda... why?
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MMCDan
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MMCDan 8/26/2019 12:20pm
8/26/2019 12:20pm
Carlton_Fartman wrote:
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then...
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then don't go back together good either after being hit repeatedly with the dead blow.
This right here. Save yourself the trouble and just buy a new silencer. There are plenty of new or slightly used OEM takeoffs available on Craigslist if you want to stay stock.
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Sr_Vet_Rider
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Sr_Vet_Rider 8/26/2019 12:28pm
8/26/2019 12:28pm
Carlton_Fartman wrote:
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then...
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then don't go back together good either after being hit repeatedly with the dead blow.
MMCDan wrote:
This right here. Save yourself the trouble and just buy a new silencer. There are plenty of new or slightly used OEM takeoffs available on Craigslist...
This right here. Save yourself the trouble and just buy a new silencer. There are plenty of new or slightly used OEM takeoffs available on Craigslist if you want to stay stock.
You’re kidding right ? Simple job to repack the muffler !
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MMCDan
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MMCDan 8/26/2019 12:37pm
8/26/2019 12:37pm
Sr_Vet_Rider wrote:
You’re kidding right ? Simple job to repack the muffler !
It's not the degree of difficulty in question, just the results. Anyone can drill out the rivets, remove the old packing and put it back together, it's just a nasty job that rarely (in my experience) produces a good result.
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Harry Backmon 8/26/2019 1:43pm
8/26/2019 1:43pm
Carlton_Fartman wrote:
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then...
I'd change tires all day over getting pissed off and itchy repacking a muffler. They never come apart easy, get bent up in the process, then don't go back together good either after being hit repeatedly with the dead blow.
Laughing

"Dead blow" Yeah that's gonna cause a problem. Laughing

Use a rubber mallet as you pull it apart. Tapping it really helps. Nevertheless, from reading some of the comments, I guess I've been lucky. But I do mine annually when I grease the swingarm and steering stem. Maybe taking it apart regularly helps?
GrapeApe
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GrapeApe 8/26/2019 1:43pm
8/26/2019 1:43pm
I hate maintenance as much as the next guy but I've never thought of re-packing a muffler as a labor intensive or technically challenging task.
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hogkiller
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hogkiller 8/26/2019 1:54pm
8/26/2019 1:54pm
Why repack just let it all blow out... sounds rad and make it faster and you wont get black sh.t allover your handsSilly ,Or you can even just remove the that heavy 4 stroke Piece junk altogether think of the weight savings you will getShocked
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CarlinoJoeVideo
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CarlinoJoeVideo 8/26/2019 2:00pm
8/26/2019 2:00pm
OEM or aftermarket? 2 stroke or 4 stroke?

I just made a video for Yoshimura that should be coming out soon. They said that using the correct grams of packing dramatically changes the performance. With the race teams testing they found removing as little as 150 grams(1/4 pound) can reduce the power of the bikes.
Bennett59
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Bennett59 8/26/2019 2:19pm
8/26/2019 2:19pm
My yosh systems on my Honda I bought the repacking kit comes with the packing, rivets, and new stickers. The rivets that come with the yosh stuff are no joke I broke two rivet guns, so I was heading down south anyways I stopped by there shop and they took my system in back and got them all dialed in for me super nice ppl.
O&GDriller
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O&GDriller 8/26/2019 3:29pm
8/26/2019 3:29pm
SrfNdirt wrote:
Bike is a ktm350 w/ 25 hrs. Probably will give it a go.
Serious question: Why would a 350 with only 25 hours need a repacking? Truly curious. I run my 450's for ~200 hours and packing is still good.
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SrfNdirt
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SrfNdirt 8/26/2019 3:52pm
8/26/2019 3:52pm
Manual says change at 20 hrs.
oldblood
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oldblood 8/26/2019 4:15pm
8/26/2019 4:15pm
Don't forget to repack your muffler bearings
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rider41
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rider41 8/26/2019 4:20pm
8/26/2019 4:20pm
Only real men change their own silencer packing. Time to be a man, do not be afraid grasshopper.
CarlinoJoeVideo
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CarlinoJoeVideo 8/26/2019 4:21pm
8/26/2019 4:21pm
SrfNdirt wrote:
Bike is a ktm350 w/ 25 hrs. Probably will give it a go.
O&GDriller wrote:
Serious question: Why would a 350 with only 25 hours need a repacking? Truly curious. I run my 450's for ~200 hours and packing is still...
Serious question: Why would a 350 with only 25 hours need a repacking? Truly curious. I run my 450's for ~200 hours and packing is still good.
Depends how hot and how you ride the bike. I’ve heard OEM stuff sound like crap after 25 hours. But also seen some look like new after 50.

Could be the difference with use plug caps during washing or if you pressure wash and it makes it way into the packing.
Boomslang
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Boomslang 8/26/2019 4:22pm
8/26/2019 4:22pm
Hoseclamp wrote:
Yep. If you can change a pain in the ass tire, muffler packing is a walk in the park
Makes my hair stand up thinking about re-packing mufflers (I get itchy just thinking about it), but yes, way better than a tyre change.

plowboy
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plowboy 8/26/2019 5:07pm
8/26/2019 5:07pm
I lay out the new packing beside the bike. In the morning the re-packing elves have done their magic.

My old YZ 250F with Big Gun exhaust lasts about 4 hours. I use FMF 4t packing. When I open it up...there's nothing there...a few black ashes. I'm pretty handy at it by now. Having Allen head screws instead of rivets doesn't hurt.
SoCalMX70
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SoCalMX70 8/26/2019 5:24pm
8/26/2019 5:24pm
Judging by all the bikes at the track that sound like clapped out pieces of shit... A lot people must think it's a difficult job.
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