Yamaha

hmf full exhaust on new 07 yfz 450 what jetting to run



3 replies to this topic
  • chevytrucks94

Posted November 08, 2007 - 05:50 PM

#1

What jetting should i run with my new 450 and full exhaust also with or with out air box lid

  • crf-f crf-r trx cbr

Posted November 11, 2007 - 11:10 AM

#2

a james dean jetting kit.........

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  • ajd187

Posted November 12, 2007 - 06:57 AM

#3

Forget the jetting kit, it's a rip off.

Go to your dealer and get:
165/168/170/172 main jets
45/48 pilot jets

Then start swapping and playing until you get it right.

  • jim d

Posted November 28, 2007 - 12:31 PM

#4

If You want LOUD get the HMF Quiet:: racesieries exhaust:





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