toytech Posted May 5, 2010 Report Share Posted May 5, 2010 do the spark arrestors have to have the usf stamp on them to be legal in michigan? Quote Link to comment Share on other sites More sharing options...
jasons Posted May 5, 2010 Report Share Posted May 5, 2010 i know in Cali they do. look up your local laws. Quote Link to comment Share on other sites More sharing options...
shanYE west Posted May 5, 2010 Report Share Posted May 5, 2010 Yes.. they have to be stamped with USFS approved. Quote Link to comment Share on other sites More sharing options...
someone82 Posted May 5, 2010 Report Share Posted May 5, 2010 Out here in cali I just put stainless screen in the pipes and I get through the gates everytime. They just do the poke test and never look for the usfs stickers (or lack there of). Dunno maybe I'm lucky. Quote Link to comment Share on other sites More sharing options...
michigan_soler Posted May 6, 2010 Report Share Posted May 6, 2010 they don't check in silver either... well if they sound test you and they notice you will get kicked, but they do the poke test unless you are running visible sparkies (or some equivalent) Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted May 7, 2010 Report Share Posted May 7, 2010 Free word of advice here...YOU CANNOT JUST PUT SCREEN IN YOUR PIPES AND GET AWAY WITH IT AT SILVER LAKE. The DNR guys and gals don't know much....but they DO KNOW what silencers came with spark arrestors. They even have laptops at the gates with ALL the pipes that ever came with arrestors in a picture file! I've seen them use it to double check a dirtbike rider who was trying to sneak thru with the screen trick! FMF TURBINE CORES are your best bet for a 2-stroke with a typical pipe set-up...otherwise you'll need the Cobra Sparky's. When in doubt they look for the USFS stamping. Buy them before you get there.....DAR "Dune Land" charges a fortune for them cause they know you have no other choice. Clean them every 10 ride hours like the directions say...or you'll see power drop even more. Also watch that your fiberglass silencer material doesn't get all blocked up in them. You can pull them off once your in...but you risk a fine. If your riding a 4 stroke...leave your spark arrestors in your pipe....your not going to be fast even with them out. I wish "Big Brother" could adjust that rule for Silver Lake....I've never seen a sand fire before. But the rule was written to cover the Trail system. They just won't change the enforcement because it also helps lower your sound levels which they have problems with thanks to a lawsuit. Hope that helps ya' Quote Link to comment Share on other sites More sharing options...
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