08-12-2007, 10:55 PM #1
Do you need a Flame Arrestor Air Filter?
I want to put a custom 4" intake on my '07 RXT...Do I need a flame arrestor air filter? I noticed that the riva kit comes with one. I read that some people are using the 4" stainless mesh air filter that is not a flame arrestor? Can the engine back fire through the sc and spark the fumes in the hull? I am not sure how the flame arrestor works or if it is needed. Please help me...I do not want to have any problems if you know what I mean! Thank you, Rick
08-13-2007, 12:46 AM #2
2 strokes use flame arresters. 4 strokes use air filters. And yes you should use an air filter w/ an outer wear to keep water out of the engine.
08-13-2007, 05:34 AM #3
- Join Date
- Feb 2006
The intercooler and supercharger do act as a flame arrestor.The only reason is to keep out the water.The Riva rear intake only uses a outer wear.
08-13-2007, 08:23 AM #4
08-13-2007, 08:47 AM #5
I dont run a filter at all just a open 4" intake over 20 hours with this set up so far
08-13-2007, 09:25 AM #6
Per U.S. Coast Guard regulations, you must run a flame arestor. Not all do. The stock intercooler has a screen which is the flame arestor. I pulled mine screens out. Its against regulation but there is no way for them to check. A flame arestor does nothing for water. I also run with no air filter as I`m not running in dust. Stock does not use a filter.
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