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January 26th, 2015, 03:43 PM   #1
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Question Spark Arrestor Options? FE550

There is some misc info about spark arrestors on this forum, but some of it's partial info, not for my bike or posted 10 years ago so I'm going to ask my own questions.

I have a Canadian bike (2005 FE550), which is the same as the Australian bike (but not the USA bikes), and doesn't have a USFS stamp on it. The parts fiche clearly shows a different exhaust for EU+Australian bikes compared to US Bikes. The US model is called "SILENCER HOUSING SPARKY" in the description, so I'm making a guess that the US model includes spark arrestors and others didn't.

I took mine apart this weekend because a lot of the rivets were coming loose/already gone and I like taking things apart.

This is what it looks like (looks like the AUS unit):

There is no screen for the exhaust to pass through, although there is no straight shot through the silencer either so you couldn't tell by doing the "coat hanger" test. The exhaust has to make at least one 180 turn before leaving the muffler.

Sooo, my questions are:

Others have mentioned that the spark arrestor is not a screen type but a "turbo" type. Any chance that's what I have here? See: USFS approved?

Can I take a US Spark Arrestor end cap and put that on my bike? Or is the spark arrestor part inside the canister itself. The OEM end cap is about $65 so if that would turn my muffler into a spark arrestor unit, then that's the cheapest route.

Others have mentioned the Pro Moto Billet end caps, but those posts are very old and Pro Moto no longer shows anything for the FE550 on their site. Was that end cap a unique item, or was it the same as one of the KTM units? My exhaust looks very similar to my Bro's 450 EXC.

My other option is an aftermarket muffler, but I'm not keen on spending that much cash and I honestly don't feel that I need a lot more power (yet).

I'm less concerned about legality as we don't get checked very often up here (never so far), but I don't wanna be the guy who burns down the forest.

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January 26th, 2015, 07:13 PM   #2
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I Ride: 2014 KTM 300 XC, 2014 KTM 250 XC, 2007 Husaberg FE450, 1999 RM125
I saw this.....

2004 Husaberg FE450 FE 450 550 501 650 Rear Exhaust Muffler Silencer KTM | eBay
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January 26th, 2015, 08:41 PM   #3
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None of them have a USFS stamp. Edit: I lied, my krizman one does, and it appears the eBay does also..

Yours is the same as was on my FS650 2005. Asfaras I know, it has a spark arrester, in that the exhaust and embers has to hit the back of the cap, then do two u-turns to make it out. It's been checked by the ranger with the poker at prairie city OHV a number of times.

The eBay one although modified or a Krizman type (turbo as you put it)

I have that one as well.
Looks like this inside:

The screws instead of rivets on a seemingly new exhaust would make me leery of buying it without getting another pic confirming that the sparky is still operational.

They could have cut it out...

Last edited by Idle; January 26th, 2015 at 08:50 PM.
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January 27th, 2015, 04:43 AM   #4
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Good price same part number as my 06 550
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January 27th, 2015, 07:10 AM   #5
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The seller indicates in the description the spark arrestor has been removed, or am I reading it wrong.?
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January 27th, 2015, 07:45 AM   #6
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The inlet on it is modified. Too long.
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January 27th, 2015, 08:08 AM   #7
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Originally Posted by 72triple View Post
The seller indicates in the description the spark arrestor has been removed, or am I reading it wrong.?
"USA model sparky removed from a 2004 husaberg fe450e "
I think he means the muffler is removed from a -04 berg.
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January 27th, 2015, 08:50 AM   #8
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I Ride: 2005 FE550
I read it as the muffler was removed from a 2004, but it does leave some room for interpretation.

The inlet does look very long. The one on my bike is maybe an inch long. The canister looks to be a different shape too so I don't think I could just swap the inlet from mine over. The 2004s had a KTM part # (59005075250) and 2005 they all had 8000.... Husaberg numbers.

Also, the hangers look like they are offset from each other. Hmm, now I need to go out to the garage and look at mine.

FWIW I emailed Pro Moto Billet and asked about an end cap for the 550. Their response was "we no longer manufacture an end-cap for that model. Our other parts will not properly work on that bike...".

Idle says he's passed inspection with the same silencer as me, so maybe even though it's not USFS approved, it's still a functioning unit?
Attached Thumbnails
Spark Arrestor Options? FE550-04sparkarrestorebay.jpg  
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January 27th, 2015, 02:46 PM   #9
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Canada requires sparkies too?

Even if you have a spark arrestor, if it doesn't say "USFS approved" they can fail you so just putting the cap on (with spark arrestor) may not help, especially with the krizman type since the poker test means nothing. Most National forest guys are carrying screen gauges to make sure the screen type sparkies aren't out of spec too.

I can check when I get home if my cap is also marked USFS approved.

Last edited by basalt; January 27th, 2015 at 02:48 PM.
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January 27th, 2015, 03:46 PM   #10
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I Ride: 2005 FE550
I think province sets the rules on that, but in British Columbia they are required. I'm unsure how they test that in BC, whether they give it the ol' prostate exam or if they just look for USFS markings. I have never been checked so far.

Despite the fact that most of the province is covered in ice and snow most of the year (or just rain here on the coast) it can get damn hot and tinder dry in the summer. There are literally thousands of fires every season and the average total damage is like 350'000 acres/year (yeah I had to look that up).

Here's a picture from our camping spot in Kamloops a few years back. Yikes.

Thanks for the info, guys.

I think I'll try steal the Pro Moto end cap on my bro's EXC 450 and see if it fits...
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