In addition to their use with engines, spark arrestors are also used in conjunction with dust collecting systems in the industrial setting. These consist of a metal mesh that traps large particles and prevents them from leaving the exhaust system. Screen arrestors, on the other hand, are much more simple and used in smaller engines and also often in the tops of flues on buildings. These are commonly used in agricultural and construction equipment like combines, bulldozers, and tractors. Centrifugal spark arrestors use baffles or stationary vanes to catch flammable debris using centrifugal force. If that's being scared of my own shadow then I'll take it.When it comes to engines, there are two main types of arrestors- centrifugal and screen. I just hose mine out with brake clean every oil change and forget about it. I built hotrods, street race, run open headers, don't give a rat's ass about emissions laws etc.īut being on the hook for a 50 million dollar wild land fire so my RZR can "breaaaaaathe!" and get that extra 1/10th of a horsepower you'll gain from removing the arrestor? Nope. Not to mention prison time once they decide that you removed the spark arrestor on purpose. That runs into 10s of millions of dollars quickly. I don't know where you're at but here if you start a wild land fire here and it can be proven that you started it, you're on the hook for the whole cost of fighting that fire. It's being slapped with a bill for millions of dollars. That's not even what convinces me to leave the spark arrestor in place. I have seen first hand the damage they cause. I fought those fires for years in the past. On the other hand, I live in NW Montana where we get terrible fires almost every summer. I don't even think it's going to start a fire to run without it. ( I scrubbed that thing for a very long time)Ĭlick to expand.I'm not afraid of the fine, our local twig pigs never check spark arrestors. Although it wasn't as clean as I'd like, the machine ran perfect with full power for an extended time. One of my future maintenance items will be the removal and cleaning of the spark arrestor. It became cumulative, even more so on the last ride. I think enough mud splashed into the exhaust and "baked" into the screen during those rides. My theory is this: The last two rides, extremely slow and technical with a lot of muddy trails and my young son riding along, so light throttle all the way, especially while he was sleeping. We have an abundance of mud holes here but I avoid deep mud, especially holes deep enough to cover the exhaust. Way too clogged with what appeared to be mud. Removed and inspected, it was obviously not right. Okay then, this check is perfect for me, low skill, no special tool and low effort. One of those things was the spark arrestor, at that very moment the ride leader from the previous day texted me about checking the spark arrestor. Got back and loaded it up all under its own power, successful day.Īs I was researching new fuel pumps I went over my short list of things to check and inspect during the change out. The machine got worse with more miles until it would only accept about 5 to 10% throttle without sputtering and dying. We did some quick checks to make sure it wasn't something else. I had read about these symptoms before, it had symptoms of a bad fuel pump/plugged filter/starving for fuel. (it would kick misfire codes if I kept my foot in it) My '17 1000 XP fell flat, zero response, it was like I lifted my foot off the throttle. I had a fantastic ride over the weekend, a beautiful day here in the Ozarks.Ībout half way through the ride, 40 miles, I went to into a tight corner and blipped the throttle to help kick the back end around.
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