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Dirt Bike Brands - Other
Spark Arrestor (info please)
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[QUOTE="rmc_olderthandirt, post: 1206382, member: 68872"] The spark arrestor is either built into the silencer (the last part of the exhaust system) or it could be a part added onto the silencer. Either way, if it is an approved spark arrestor it will say so, I believe the text is "US Forest Service Approved Spark Arrestor". If you don't see words close to that stamped into the silencer then it is not an approved spark arrestor. As for performance, many people believe that removing silencers/mufflers or "reducing backpressure" will make a significant improvement in performance. That is not necessarily true on a four stroke engine and it can be totally false on a two stroke even to the extent of hurting performance. The expansion pipe is a vital part of a two stroke system. To a lesser degree the silencer is a part of the equation. A significant change to the silencer may require a change to the carburetor jetting, and without making that change the performance might actually suffer. Unless you are racing and need that last little bit of performance I suggest that you leave the spark arrestor in place. As others have said, it is doubtful that you would really notice the difference. Rod [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Spark Arrestor (info please)
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