YZ450F 06 sluggish, help

2 replies to this topic
  • ericus

Posted June 26, 2013 - 12:14 PM



I had a Devil exhaust, but I broke it and bought a new, original exhaust system from a -09 in mint condition for a very good price. And after that my bike feels sluggish from the bottom.
Could this be due to a jetting issue (from what I understand, you change the jetting when installing performance boosting exhaust systems)?
Or could it be as simple as the other exhaust gave me that much more bottom power? Or maybe a clugged main jet or something?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted June 26, 2013 - 12:47 PM


The '08-'09 pipe is notorious for sucking the life out of the low end on the YZ450. The blame lies mostly there.

  • ekulb14

Posted June 26, 2013 - 05:21 PM


yeh its true 08- 09 are terrible exhausts get a aftermarket or stock 06

Related Content


Yamaha YZ450F 2017 by Chris.GVS

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


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

BIGBORE FOR YZ450F 2006? by Taattie94

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 3 replies

Should I buy this bike? help....... by Numsa Hul

Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

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.