Aftermarket law

yammiman

yammiman

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This just in boys and girls - just got my latest issue of MSA News and they expect the new "sound" law to pass in Michigan before the season starts - appears there is a new test method (which is the one put into law in Wisconsin recently) SAE J-2567 - just as I thought, it is a stationary test - they put a decibel meter on a tripod 48" off the ground and 4 meters (about 12') behind the sled - you are asked to rev your sled to 4000 rpm's and hold it for 4 seconds - you repeat this a second time, and they take the average of the two readings - you either pass or fail - fail, and you are sited on the spot - I don't know what the fine is or if the law has actually been passed (I'll keep researching that) but all I can say is you might want to look at taking off your aftermarket cans!! - Oh, by the way, the decibal limit is 88db (for those of you that want to test what you have) - I think it kind of sucks but if it helps save the sport and some trails I guess it is a small price to pay! :dunno:
 
12 ft behind the sled is a big disadvantage for the Y 4 strokes with the rear exiting ehausts vs 2 strokes exhaust pointing down below your right foot perch.
 
No doubt about it - an Excell exhaust is around 92db I think, but I don't know at what distance that is - anything over stock is going to get sited, the way I see it - kinda sucks!!
 
:Rules: GOOD! I find loud pipes extremely annoying, except at the right time and place (race track). We get lots of flatlanders with loud pipes that come up here to the snow belt from some big city and think they are in the middle of nowhere when in fact they are almost always in someone's "back yard". Most people around here don't snowmobile and are offended by the noise even more than I. Eventually it will ruin snowmobiling for those who live and pay taxes here. Please respect the areas you ride in. It will benefit all that enjoy the sport. Sorry for the attitude but this strikes a nerve. (don't get me going on the open pipe hardley ablesons)
 
Some aftermarket pipes are just too much. I have an XLT with a dg can that can give you a headache after a few miles. i took it off and put the stock can back on. Some of the two strokes are way too loud. I havent heard too many yammi's with pipes on yet as where I'm from every one has a doo. I love the sound of my stock vector. I agree with mbw919 that most with loud pipes are from out of town and don't care or are kids with something to prove " I'm a bad a$$ because my sled is louder then your's" Just shut up and ride
 
Agree 1000%! I cringe everytime I hear a LOUD sled with a "performance" can on it, just thinking of all the potential problems with land owners and trail closings. It is just not needed on the trail! In fact, it is just plain stupid to have a loud POS snowmobile buzzing around towns and cities and homes. I would hate it if I lived near a trail.


mbw919 said:
:Rules: GOOD! I find loud pipes extremely annoying, except at the right time and place (race track). We get lots of flatlanders with loud pipes that come up here to the snow belt from some big city and think they are in the middle of nowhere when in fact they are almost always in someone's "back yard". Most people around here don't snowmobile and are offended by the noise even more than I. Eventually it will ruin snowmobiling for those who live and pay taxes here. Please respect the areas you ride in. It will benefit all that enjoy the sport. Sorry for the attitude but this strikes a nerve. (don't get me going on the open pipe hardley ablesons)
Click to expand...
 
.....Now if this law would apply to Harley's life would be good......

Amen to that!!!!
 
.....12 ft behind the sled is a big disadvantage for the Y 4 strokes....

double checked this and the decibel meter will be on a tripod 48" off the ground and 4 meters (about 12') ON THE EXHAUST SIDE of the sled - so no advantage to different sleds - did more research and cannot find if the legislation has acually passed yet!
 
Says it was adopted, but doesn't show the vote!? - guess it don't matter, it is law now!!
 
Here in Alaska, we don't have the same types of groomed trail systems that some people enjoy in the lower 48. We do have some groomed trails and other trail systems that are great, but rather bumpy.

If we had a lot of nicely groomed trails that ran through a lot of home owners' property, I'd agree and also hope the noice from snowmachines wouldn't be too much or too loud.

Being here in Alaska though, I don't care how loud they get because we don't have the same types of trails that are so close to housing areas. Even our nice trail systems run through the middle of nowhere. Also, we have much more open land to ride on where there are no homes, unless it's a cabin in the middle of nowhere that you happen to run across.

Have Fun,
Will
 
What rpm does the clutch kick in isnt it at 3800? If the track is spinning adding to the sound how can they tell exactly what the sound out the pipe is?
 
Get this - they figure that most sled clutches come in under 4000 rpm (which on most sleds that would be about right) - if you burn your belt during the test, they will replace it!! - the MSA has worked hard to save some trails in Michigan and to get some others opened back up - the Mullet Lake trail took them 10 years to get opened back up and it goes through a sensitive area along the west side of Mullet Lake - if this new law helps keep trails like that open, I'm all for it - I love the sound of an aftermarket exhaust, but not at the expense of losing trails!! ;)!
 
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