Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1999 yz250 Oil from Exhaust
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="NWDirt, post: 1159201, member: 72763"] I bought an 01 YZ 250 from a guy I never actually got to talk with so I decided to set the carb settings back to stock and used Yamalube at 32:1 as the book suggests. On slow trail rides, the black spooge was everywhere even dripping on the truck bed after the ride. Makes sense because the bike was made to be run at upper rpms in a supercross enviroment and I ride it on trails. I did the following: I went through the process of getting it jetted correctly (great links on this sight) but the spooge kept coming, so I tried a few different pre mix oils. Finally settled on a 40:1 DUMOND mix with the best and freshest pump gas I could get. The Dumond oil made the bike slightly fuel lean even though I leaned the oil, so I rejetted the bike for the third time. For the riding I am doing, there is very little sign of spooge and recently when I had the power valve apart it was clean and nice instead of full of black oily crud. The previous post mentioned using the same oil as your friends and that makes sense as long as they are detailed enough to dial their own bikes in. Get it dialed in, one variable at a time, and then stick to it and the bike will run crisp and be relativly spooge free. Guys on here are more experienced with this than I am, but since I have the same bike and the same problem, I chimed in. Dave Oh yeah, after boring it out, jetting turned out to be a three ride experience to dial it back in. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1999 yz250 Oil from Exhaust
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom