04 yz450f jetting?


4 replies to this topic
  • yamithump44

Posted March 17, 2010 - 12:18 PM

#1

the bike sputters slightly on mid-top end. clutch was acting funky too. i ripped apart the disks and such and reinstalled em and that problem was fixed. the choke needle is slightly bent as well. could this be my problem? or is the jetting off? engine is stock besides and FMF Q slip-on. ill be replacing the choke needle regardless but am wondering if i should order a jet kit with it.

  • yamithump44

Posted March 18, 2010 - 06:00 PM

#2

no one?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • yamithump44

Posted March 20, 2010 - 08:54 PM

#3

up one to a 45 pilot?

  • grayracer513

Posted March 20, 2010 - 09:01 PM

#4

http://www.thumperta...ad.php?t=694921

What's a choke needle?

Why change the pilot when your problem is mid/top?

http://www.thumperta...ad.php?t=327405

http://www.thumperta...699#post2881699

  • yamithump44

Posted March 21, 2010 - 06:10 AM

#5

sorry, meant the choke plunger.





Related Content

Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

YZ450FX OR YZ450F by MESSMAKER


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  30 replies
Forums
Photo

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
Forums
Photo

The "going back to the other darkside" adventure... by Monk


Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies
Forums
Photo

05 yz450f not fast enough by RedeyeYZ


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies
 
x

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.