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.

First:
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: http://husaberg.org/husaberg/1949-usfs-approved.html

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.

Thanks!

I saw this.....

2004 Husaberg FE450 FE 450 550 501 650 Rear Exhaust Muffler Silencer KTM | eBay

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 repacked....is 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...

Oregon Trail said:

I saw this.....

2004 Husaberg FE450 FE 450 550 501 650 Rear Exhaust Muffler Silencer KTM | eBay

Click to expand...

Good price same part number as my 06 550

The seller indicates in the description the spark arrestor has been removed, or am I reading it wrong.?

The inlet on it is modified. Too long.

72triple said:

The seller indicates in the description the spark arrestor has been removed, or am I reading it wrong.?

Click to expand...

"USA model sparky removed from a 2004 husaberg fe450e "
I think he means the muffler is removed from a -04 berg.

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?

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.

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...

Here you go.....

1999 2004 2008 Husaberg Big Gun Complete Exhaust Headers Mid Pipe Silencer | eBay

There are some hack spark arrestor vids on Youboob, but I'm sure you have already caught those shows. Otherwise you're stuck with trying to make something from FMF, Pro Circuit or the like work.

I just went riding with a buddy who has an 05 KTM 450 exc, our muffler looked identical except his writing said KTM and was on the other side and the end cap faced out right, mine left. The one from Pro Moto Billet looks like it will work.

2004-2005 EXC/MXC 400/450/525 Spark Arrestor

I borrowed the exhaust off my brother's 2007 KTM EXC 450 and took the Pro Moto Billet Spark arrestor end cap out.

The aluminum silencer cans look exactly the same, although the internals and hangers are different. His unit has a factory spark arrestor so I couldn't compare the internals (Yes, the KTM now has 2 spark arrestors).

The Pro Moto end cap fit in the Husaberg exhaust perfectly.There are no clearance issues with the internals as the spark arrestor bit only protrudes a few inches into the silencer. In fact, unlike the stock end cap, the new spark arrestor would give the exhaust a straight shot right from the inlet straight out the end cap.

This one has the "snout" on the end, I think that is just for sound control. It points down, but straight behind the bike (not angled like the OEM outlet) so I'm not sure if it would hit the license plate. I think it would be OK though (no worse than the KTM).

Pro Moto's website lists 2 different parts numbers for the KTM 450 EXC/RFS 2004-2005 = PMB-01-3101, 2006-2007 EXC = PMB-01-3102. I'm unsure what the difference is, but I'm assuming this is the correct one for the 2007.

OK, so the options are:

-Full aftermarket unit
-Used OEM sparky off a USA bike
-Pro Moto end cap (looking for a used ebay one)
-Weld in a screen from another unit. No USFS stamp, but would satisfy me. No good if I ride in WA or at the Oregon dunes I guess.

I've only been check a few times for a spark arrestor, they have always put something in to check, never looked for a decal.

Funny, I guess as long as it hits something they figure it's a screen...

another case of lawyers having way too much say. i understand there has never been a documented case of a fire started by a spark from an ohv exhaust.:devil:

ned37, you are correct. I was on a committee in our town and someone said that OHV's cause fires. The fire chief at the time went back and did some research and could find no documented cases where OHV's cause a fire, that was in 2012.

So a friend bought a KTM 350 sxf that had a Lexx slip on exhaust and he wanted to change, so he let me see if it fit my Husaberg, it looked like to would bolt right up and it did. The muffler is the same length as my 2007 FE450 stock exhaust but the little adapter is 3" long or so. I guess they use the same muffler but adapter specific for your bike. Also the way it mounts is with a strap and only the back one is used. Decent alternative for some looking for an exhaust. I put my stocker back on, but I'll mess around with it later for pictures.

Oregon Trail said:

ned37, you are correct. I was on a committee in our town and someone said that OHV's cause fires. The fire chief at the time went back and did some research and could find no documented cases where OHV's cause a fire, that was in 2012.

Click to expand...

I've seen them start several fires, but not from a spark out the exhaust.

Hot header in dry grass = fire.

Though I've seen far more fires started by trucks in the same way. Almost lost several vehicles on a job site once that way, including a giant drill rig!

Always clear the grass from under your vehicle and don't crash in dry grass