I have been Arrested. Well Spark Arrested.

katoranger · 07-16-2007, 06:55 PM

Look what came via UPS today.

I wanted to be USFS legal and I found this on ebay.
It is the Cobra Sparky spark arrester and this one was slated for a KX500.

It was originally oval, but I easily made it round and it fit my gy2 exhaust perfectly. I use 2 sheet metal screws and the supplied clamp to secure.

I am thinking of using some stainless steel wool for adding sound deadening. I like quiet.

Allen

ob1 · 07-16-2007, 07:28 PM

Do not use stainless steel wool, it will make your spark arrestor a spark generator.

Buy some standard issue muffler packing, and head to the hardware store for some 1/4in hardware cloth. Hardware cloth is a heavy gauge screen, used for everything from varmint-proofing to a base for stucco repairs.

Cut the hardware cloth into a strip the proper width and about 1.25 times larger in diameter. Pack the SA to the desired level, then insert the hardware cloth like a circular spring. A little safety wire to secure the overlap would be cool.

katoranger · 07-16-2007, 07:35 PM

Ok. I was thinking that the stainless did not burn. There was an article on repacking mufflers. Maybe it was another type.

Thanks, Allen

ob1 · 07-16-2007, 07:37 PM

I would also permanently attach a little chain from the SA to something very secure.

Sparkys have a way of escaping. I find them on the trails...

katoranger · 07-16-2007, 08:46 PM

I used a couple of screws, but I think some strapping and more screws will be added. It is a tight fit and I beat it on with a chunk of 4x4 treated lumber.

I will probably forget the added packing material. I remember where I saw the article on muffler repacking and it was a streetbike site.

This may be only a temp fix. Just want to be legal if I am out in the woods.

Allen

katoranger · 07-16-2007, 08:58 PM

Would this work?
http://cgi.ebay.com/ebaymotors/10-x-...QQcmdZViewItem

I am not sure if it would be even worth while.

Allen

ob1 · 07-16-2007, 11:24 PM

They sell the stuff at cycle shops, no biggie!

katoranger · 07-17-2007, 08:27 AM

I will check the bike shop, I just like my internet shopping.

Allen

zacstewart · 07-17-2007, 09:11 AM

Quote:

Originally Posted by katoranger

Ok. I was thinking that the stainless did not burn. There was an article on repacking mufflers. Maybe it was another type.

Thanks, Allen

Try sticking some between the terminals of a 12V battery

. You can actually use steel wool to start fires in an emergency. I don't know how easy it would be to light with an ignition source other than electrical current, but it's still probably not a good idea.

katoranger · 07-17-2007, 10:00 AM

I have burned regular steel wool before. I am going to use the muffler packing fiberglas stuff. No need to burn anything down.

I haven't ridden the bike yet with the sparky installed, but it did change the exhaust note some.

Allen

07-16-2007, 06:55 PM	#1
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I have been Arrested. Well Spark Arrested. Look what came via UPS today. I wanted to be USFS legal and I found this on ebay. It is the Cobra Sparky spark arrester and this one was slated for a KX500. It was originally oval, but I easily made it round and it fit my gy2 exhaust perfectly. I use 2 sheet metal screws and the supplied clamp to secure. I am thinking of using some stainless steel wool for adding sound deadening. I like quiet. Allen __________________ You meet the nicest people on a Honda Clone.
	0

07-16-2007, 07:35 PM	#3
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Ok. I was thinking that the stainless did not burn. There was an article on repacking mufflers. Maybe it was another type. Thanks, Allen __________________ You meet the nicest people on a Honda Clone.
	0

07-16-2007, 08:46 PM	#5
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I used a couple of screws, but I think some strapping and more screws will be added. It is a tight fit and I beat it on with a chunk of 4x4 treated lumber. I will probably forget the added packing material. I remember where I saw the article on muffler repacking and it was a streetbike site. This may be only a temp fix. Just want to be legal if I am out in the woods. Allen __________________ You meet the nicest people on a Honda Clone.
	0

07-16-2007, 08:58 PM	#6
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Would this work? http://cgi.ebay.com/ebaymotors/10-x-...QQcmdZViewItem I am not sure if it would be even worth while. Allen __________________ You meet the nicest people on a Honda Clone.
	0

07-17-2007, 08:27 AM	#8
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I will check the bike shop, I just like my internet shopping. Allen __________________ You meet the nicest people on a Honda Clone.
	0

07-16-2007, 07:28 PM	#2
ob1 Join Date: Jul 2006 Posts: 499	Do not use stainless steel wool, it will make your spark arrestor a spark generator. Buy some standard issue muffler packing, and head to the hardware store for some 1/4in hardware cloth. Hardware cloth is a heavy gauge screen, used for everything from varmint-proofing to a base for stucco repairs. Cut the hardware cloth into a strip the proper width and about 1.25 times larger in diameter. Pack the SA to the desired level, then insert the hardware cloth like a circular spring. A little safety wire to secure the overlap would be cool.
	0

07-16-2007, 07:37 PM	#4
ob1 Join Date: Jul 2006 Posts: 499	I would also permanently attach a little chain from the SA to something very secure. Sparkys have a way of escaping. I find them on the trails...
	0

07-16-2007, 11:24 PM	#7
ob1 Join Date: Jul 2006 Posts: 499	They sell the stuff at cycle shops, no biggie!
	0

07-17-2007, 10:00 AM	#10
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I have burned regular steel wool before. I am going to use the muffler packing fiberglas stuff. No need to burn anything down. I haven't ridden the bike yet with the sparky installed, but it did change the exhaust note some. Allen __________________ You meet the nicest people on a Honda Clone.
	0