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What would a clogged spark arrestor do?

This is a discussion on What would a clogged spark arrestor do? within the General RZR Discussion forums, part of the General RZR category; I'm troubleshooting a problem with my RZR. It shuts off while I'm sitting idle on the trail, but I can start it up no problem. ...


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  #1  
Old July 21st, 2010, 06:00 AM
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What would a clogged spark arrestor do?

I'm troubleshooting a problem with my RZR. It shuts off while I'm sitting idle on the trail, but I can start it up no problem. Now it's starting to hesitate while I start to accelarate.

I removed the fuel sending unit /fule pump from the tank to make sure that there was no water or trash in the tank and it was clean. In doing so three of the screws that hold the sender in place were seized to the pressed in nut. I had to pull these out of the tank and now I need to figure out how to fix this as well ( that will be another thread) . Any thoughts would be appreciated on repairing this too.

QUESTION: Can a clogged spark arrestor cause it to hesitate or stall? From everything I have read, removing one can be a PITA, and I dont want to waste time and get pissed off trying to remove this thing if it will not cause my problem.

Thanks
Rick
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  #2  
Old July 21st, 2010, 06:45 AM
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Re: What would a clogged spark arrestor do?

Quote: Originally Posted by RickRZR View Post
I'm troubleshooting a problem with my RZR. It shuts off while I'm sitting idle on the trail, but I can start it up no problem. Now it's starting to hesitate while I start to accelarate.

I removed the fuel sending unit /fule pump from the tank to make sure that there was no water or trash in the tank and it was clean. In doing so three of the screws that hold the sender in place were seized to the pressed in nut. I had to pull these out of the tank and now I need to figure out how to fix this as well ( that will be another thread) . Any thoughts would be appreciated on repairing this too.

QUESTION: Can a clogged spark arrestor cause it to hesitate or stall? From everything I have read, removing one can be a PITA, and I dont want to waste time and get pissed off trying to remove this thing if it will not cause my problem.
Thanks
Rick
It can and will raise hell with the running of the motor... Hesitating, over heating, surging, poor idle etc... If you don't want to take it out spray it with brake cleaner 3 or 4 times and see if you can open it up...

If that doesn't work you'll have to remove and clean it or replace it... It's just a screen (heavy duty)...
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Old July 21st, 2010, 10:13 AM
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Re: What would a clogged spark arrestor do?

Use a bearing puller.


Mine came from the factory with 2 arrestors installed so they were very hard to extract. This got them out without damage. The bearing puller has 2 opposing jaws that grip from the inside & attached to a slide hammer.
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Old July 21st, 2010, 10:16 AM
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Re: What would a clogged spark arrestor do?

Where did you find that puller? What size is it?

Thanks
Rick
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  #5  
Old July 21st, 2010, 11:01 AM
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Re: What would a clogged spark arrestor do?

Quote: Originally Posted by RickRZR View Post
Where did you find that puller? What size is it?

Thanks
Rick
Harbor Freight has them or the Tool Exchange...
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  #6  
Old July 21st, 2010, 11:59 AM
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Re: What would a clogged spark arrestor do?

Just a thought, mine started doing something similar to yours. It started ideling really low when slowing down or coming to a complete stop, and finally it ideled so low that it died. It was around 700 rpms when it's suppose to idel around 1200-1230 rpms, I was told that it could be the TPS sensor got out of adjustment. So I decided to try to adjust it myself by loosing the Star headed bolt and adjusting it myself. It began to idel terrible and died and by moving it I got it where I could ride it on the Mtns. and a Polaris Dealer was at the event and they told me that I should have not moved it. So they took another TPS off the rental 09 and put it on my RZR so I could ride. Because I drove 600 miles to ride the weekend and they got me going, but it still wasnt calibrated just right. So I tool it into the Dealer in Jax FL and they put me a new TPS on and now its fine. But you can take a wrench and take the bolt out and then put it inside the tailpipe and screw it about half way down and then take bigger wrench and put over the bolt and attach a pair ov vise grips on the end of the wrench and tap it out with a hammer. First use some penertrating spray and let it sit for a few minutes and then tap it out. Mine came right out and then I cleaned it with brake cleaner and used a small screwdriver to break loose the carbon around the head of the Arrestor. There is a groove around the head, at least mine has one. I've read that some guys leave it out to get a deeper sound and put a small bolt in the hole so it doesnt sputter. Doesnt sound bad at all. So maybe this helps.

Anthony
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Old July 21st, 2010, 12:51 PM
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Re: What would a clogged spark arrestor do?

Quote: Originally Posted by guy48065 View Post
Use a bearing puller.


Mine came from the factory with 2 arrestors installed so they were very hard to extract. This got them out without damage. The bearing puller has 2 opposing jaws that grip from the inside & attached to a slide hammer.
That's very clean compared to what mine looked like when i pulled it out earlier in the week. Mine was so clogged up i couldnt see through it when holding it up to the sunlight. Despite how restricted it was, my rzr was running just fine.
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Old July 21st, 2010, 07:10 PM
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Re: What would a clogged spark arrestor do?

Quote: Originally Posted by clemson726 View Post
Quote: Originally Posted by guy48065 View Post
Use a bearing puller.


Mine came from the factory with 2 arrestors installed so they were very hard to extract. This got them out without damage. The bearing puller has 2 opposing jaws that grip from the inside & attached to a slide hammer.
That's very clean compared to what mine looked like when i pulled it out earlier in the week. Mine was so clogged up i couldnt see through it when holding it up to the sunlight. Despite how restricted it was, my rzr was running just fine.
I prolly had less than 100 miles on when I discovered the factory had jammed 2 in the tailpipe so that's how a 'clean' one looks.
Now you got me wondering what it looks like NOW.
FWIW I really liked the sound better with 2 arrestors. Nice low & mellow tone without the 'chuffing' I have now.
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Old February 4th, 2011, 09:40 AM
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Re: What would a clogged spark arrestor do?

Don't go buy anything to remove it. A simple boat plug will work! Put it in the exhaust and tighten it up then pull it out with a wrench. The cheap style screw in ones is what I used. The ones that have the flip handle on them don't seem like they would be a good choice. I have removed mine and cleaned it numerous times this way.
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Old February 4th, 2011, 09:50 AM
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Re: What would a clogged spark arrestor do?

Mine was very clogged when I had stock exhaust.. I took the bolt out that holds the arrestor. Then In screwed it into the arrestor from the inside of the pipe.. stuck a wrench on the bolt with some vice grips and used a hammer to knock it out.. I also had to spray it with PB blaster a few times since it was pretty stuck..
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Old April 21st, 2012, 02:19 AM
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Re: What would a clogged spark arrestor do?

will a clogged spark arrestor cause considerable loss in power? while riding few weeks ago went of in hole slowly nose first ,came up to just below headlights wit hrzr back tires still high up on dry dirt, and after several attempts to back out/up, I could, so putit in 4x4 low, went for it made it to the other side and just as bout to come out, got stuck. so now have to let it idle to change gears into Reverse, (exh under muddy water just barely ,and it almost died when letting idle to change gears, it didnt but sorta burbled a bit. think got some that slimmy stuff in exh, though once it evaporated the water fro mthe thick muddy water, gonna leave the dirt in spark arrestor/muffler, got it out down on power, didnt miss nor hesitate , just weak, boggish sort of over 1/4 to 1/3 throttle. and going up a hill was boggish too. would really rev up either.

after limping to trailer ,hauled home, removed seats/engine cover checked oil, its clean, and washed off air filter housing (we run a UNI filter in it) and removed air filter end cover, still looks brand new inside, so clean there, I remove the spark arrestor, it looks totally stopped up to me, black with carbon/soot and figured dried dirt under the blackish soot. havent drove it yet ,but once I removed the spark arrestor, it does seem to rev up now like normal. does that sound possible that the spark arrestor was so stopped up, it killed atleast half the engine's power?????
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Old April 21st, 2012, 03:00 AM
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Texas Re: What would a clogged spark arrestor do?

Harbor freight also carries a blind hole bearing puller that will work for things such as this and works great for pulling stuck CV joints that have welded themselves to the differential. (ask me how I know) I think they were originally designed for pulling pilot barings out of crankshafts but they work wonders for this kind of thing.
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Old April 21st, 2012, 06:36 AM
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Mine done the same thing your talking about man...I changed spark plugs , oil and next step was the fuel pump... it ran just like that with no power at all and I stuck my hand over the exhaust and felt out wasn't right so I pulled the spark arrestor/ baffle out and i cranked it up and ran perfectly without it so i cleaned it up real good and put it back in and it's ran like a champ since

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Old April 21st, 2012, 11:44 AM
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Re: What would a clogged spark arrestor do?

Quote: Originally Posted by Cade View Post
Mine done the same thing your talking about man...I changed spark plugs , oil and next step was the fuel pump... it ran just like that with no power at all and I stuck my hand over the exhaust and felt out wasn't right so I pulled the spark arrestor/ baffle out and i cranked it up and ran perfectly without it so i cleaned it up real good and put it back in and it's ran like a champ since

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Thanks, what did you clean it with?
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Old April 21st, 2012, 12:01 PM
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I cant remember exactly I have a friend that has a mechanic shop and he had some stuff there...I wanna say it was some kind of carbon break up stuff

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