Best octane

12 replies to this topic
  • dsurfdawg

Posted January 05, 2006 - 04:22 PM


say I just picked up an 86 xr 600. What's the best octane gas to run it.



  • jcrumm

Posted January 05, 2006 - 04:36 PM


'00 owners manual calls for "92 (or higher)"

  • wr450fyamaha

Posted January 05, 2006 - 05:22 PM


127 leaded

  • TimBrp

Posted January 06, 2006 - 03:50 AM


Run 93 and nothing less. That old XR will ping when she gets warm on any lower of an octane.

  • dsurfdawg

Posted January 06, 2006 - 04:28 AM


Thanks for the feedback you guys... I am 50 years old and haven't had a dirt big in about 20 years... you will probably be seeing a lot of me looking for answers to various questions.

P. S. I live around Orlando.....anyone else on this froum live in the area. I'm gonna be looking for some guys to ride with and some places to ride.

Thanks again,


  • bork

Posted January 06, 2006 - 04:49 AM


Try to get a plate/tag for it. a bunch of us ride the fun dualsport events. go to . Theres a ride coming up (jan 29th) and most of us are your age, give and take 10.
BTW I think on the older xr the 3rd gear is week link.

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

Posted January 06, 2006 - 05:12 AM


Airplane fuel

  • JimDay

Posted January 06, 2006 - 09:15 AM


I'm in the same boat in the Metro West area, haven't been riding in over 20 years and just picked up a 2000 XR650L. Need a place to ride and people to ride with.

  • azmanxman

Posted January 06, 2006 - 11:33 AM


Really? I have a 95 600R and I run it on whatever the best stuff is at the pump. I'm thinking it's only 91 or maybe 92. I'm not sure I've noticed it pinging but then again maybe I'm just used to it. Where do you buy this 93+ stuff and what does it cost?

  • bigboredbiker

Posted January 06, 2006 - 12:05 PM


Nice that you guys have a choice in the States. Never move to the UK...No leaded fuel anywhere and the good unleaded is about $1.60 a litre.....carry on pinging..... :applause:

  • TimBrp

Posted January 06, 2006 - 01:01 PM


I wouldn't say you would notice a huge difference in the octane all the time. Depends how watered down the habib's make it and heat. During the hot summer months lugging up a hill on a bike with 87 octane will NOT perform to it's full potential and will ping.

  • 2000 xr650r

Posted January 06, 2006 - 03:06 PM


Airplane fuel

If you are worried about making that xr last, i would'nt recomend airplane fuel. It may give you a power boost, but avgas breaks down and can wear internal parts. The piston rings especially. I run 92 octane also. Where can you get 93 octane?

2000 xr650r plated uncoked and fmf

  • jcrumm

Posted January 06, 2006 - 07:23 PM


Try a Racetrack for higher octane fuels. i know Sears point (Infineon) has gas pumps that are open to the public. Also, the auto parts dealer for octane boosting products and lead additives.
I too use the 91 at the pump. :applause:

Related Content


What was your path to Beta? by officialhopsof

Dirt Bike   Make / Model Specific   Beta
  • Hot  79 replies

93 xr650l Restoration Project by Zigster

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • 17 replies

1993 XR600R rebuild by ove

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • Hot  41 replies

ignitech programmable XR650L CDI by brianhare

Dirt Bike   Make / Model Specific   Honda   XR600/650
  • Hot  60 replies

Which thumper motor for a street tracker? by woz

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • * * * * -
  • Hot  29 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.