Ultimate 4 nightmare!!!

23 replies to this topic
  • gonzo

Posted December 01, 2004 - 11:59 AM



  • YZDAD1

Posted December 01, 2004 - 07:01 PM


And what if you are using it on a 470cc ported, hot cammed Jardine titanium exhaust 450? You then really have a hole shottin' mutha! :cry: :lol: :cry: :cry: :cry: :cry:

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • yzf450jack

Posted December 01, 2004 - 07:50 PM


Maybe that the klotz and U4 do not mix together :cry: try mixing the two together in a cup and see if that grey stuff comes up!

  • YZDAD1

Posted December 02, 2004 - 10:34 AM


That's a great idea, mix the Klotz & U4 and then maybe some of your usual pump stuff and the U4. There has to be some reaction that is causing your issue. I used Klotz stuff back in the day when I drag raced a Pro Stock motorcycle, befriended one of the engineer/chemists and they made me some oxyegenates that really woke up the fuel! :cry: That is untill the NHRA figured out not only checking specific gravity but also a dye check, then it was over and had to move on! :cry:

Related Content


BIGBORE FOR YZ450F 2006? by Taattie94

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

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 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.