95% octane gas for WR 450

4 replies to this topic
  • Agent007

Posted November 23, 2003 - 09:47 PM


I just brought a new to me 2003 wr450 and while reading through the manual while I was half asleep I thought I read something that said use 95% octane gas. Was I dreaming or is this true? :)

  • yamahasocal450

Posted November 23, 2003 - 10:06 PM


i think 95 RON or 91-93 pump gas will work good, i use it and so does everyone else, you can run a mix of oxygenated fuel and pump gas but thats a little $$ and you have to go bigger on the main to account for the oxygen, if you get a high compression piston (like it needs it) then you will have to run race fuel to avoid predetonation :) :D

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

Posted November 24, 2003 - 05:32 AM


I mix Sunoco Ultra 94 ( 2 gallons ) to Cam2 114 ( 3 gallons ) It runs great and smells good too. Around here the Cam2 is $7.00 a gallon but it's worth it. Much better throttle response and great power all through the power band.

  • oldbones

Posted November 24, 2003 - 05:44 AM


My bike has seen nothing but 92 octane pump gas, and it's been nothing but good to me. If race gas gave me 5 extra horse, I am not sure it would make me any faster...

  • CronicArt

Posted November 24, 2003 - 05:47 AM


It don't make you faster just makes it snappier and pull a little harder. Noticable difference.


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.