96 bd's?


3 replies to this topic
  • xrcrash

Posted February 03, 2005 - 02:37 PM

#1

will my 05 wr 450 pass the 96 dB's with the exhaust tip taken all the way out?
i have taken the baffle out but thought i might run even better with it all the way unplugged?

  • cgrlvr35

Posted February 03, 2005 - 02:54 PM

#2

I heard its within the limits. I heard with the baffle its around 82-86. w/o the little baffle it jumps up in the 90's. no big different
If im wrong let me know

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  • toyota_mdt_tech

Posted February 03, 2005 - 06:06 PM

#3

will my 05 wr 450 pass the 96 dB's with the exhaust tip taken all the way out?
i have taken the baffle out but thought i might run even better with it all the way unplugged?


Corked, mid 80's, GTYR or PMB insert about 91-92, uncorked is about 96 or 97. Its pretty noisy. I have an FMF powercore4 witht he quiet core insert and its not as load, plus gives good power.

  • simica

Posted February 03, 2005 - 10:20 PM

#4

Just had my '05 WR450 tested at Hungry Valley looking for that 96 number like Yamaha says. I had removed the entire metal tube insert and it tested at 97.5 db. The dealer had removed it for me when I bought it and I did not even realize that there was a smaller insert inside the tube that has a rivot that needs to be drill out in order to remove it. I think that if I remove this "inner insert" and then put the metal tube back in, it will pass at 96. But for closed course racing, I will keep the tube out.

Look in this month issue of Dirt Bike mag for a good picture of this insert.




 
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