Jetting Tips for a 2006 YZ450F with new exhaust please

2 replies to this topic
  • justpiddling

Posted October 08, 2009 - 06:48 AM


Are there any riders using an FMF exhaust system (with powerbomb header) on the east coast? I've never touched my jetting, the exhaust system just arrived so I'm wondering if I should use another set of jets for my starting point. I'm in the VA & NC area if that helps to nail some things down. Any tips?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • WB450

Posted October 08, 2009 - 07:00 AM


Try here.

  • mx369

Posted October 08, 2009 - 09:57 AM


I have an 06 with the following; 48 pilot (42 stock) part number4MX19948-06-00,170 main (165stock), with needle #5TA-14916-LR-00 (stock for 07 bike) Ran tons better

Related Content


Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.