Exhaust Baffle and Sound Restrictions
Posted February 11, 2005 - 06:43 PM
Posted February 12, 2005 - 04:40 PM
Posted February 12, 2005 - 05:15 PM
Posted February 13, 2005 - 05:23 AM
Posted February 13, 2005 - 06:33 AM
I have noticed that some trails have a 94 dec max noise limit - if the Exhaust Baffle is removed - will it exceed this limit - making some trails off limits? I ride in the Michigan Area
What year is your bike???
If its 2005, then Yamadog's info is correct. DirtRider says the noise is below 96 db with the baffle removed. Probaly not as low as 94 db though.
If its 2004 or older, you'll need to buy an aftermarket insert. Stock baffle removed on those years is well over a 100 db
Posted February 13, 2005 - 07:54 AM
Posted February 13, 2005 - 11:54 AM
Posted February 13, 2005 - 12:42 PM
New Ride:05 WR450F
Last Ride: 1977 IT400
Posted February 13, 2005 - 01:05 PM
The Federal standard is already 86 (or is it 84), but it's measured at something like 50ft away while the bike is being ridden past the test station... it's not a static test.
It could be that if CA is going to 84/86 next year, they may be moving into line with the Federal standards, which would mean that current '05s are already compliant... probably still okay with the insert removed.