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Old 05-02-2016, 10:34 PM   #11
SpudRider   SpudRider is offline
 
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Join Date: Jul 2008
Location: Idaho
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Quote:
Originally Posted by detours View Post
This has happened to me several times on rides longer than 3-4 hours. I've pulled the tube out from the OCS and liquid drips out of the OCS for a minute.

This means that fuel is starting to fill the OCS and block suction. When that happens, vapors will no longer be drawn from the crankcase and fuel will build up in your oil...
That is exactly correct.

Quote:
Originally Posted by detours View Post
...Obviously, you can drain it at every stop ... or pull the plug and let the fuel/oil/water drip to the ground all the time. But I really hate the idea of pouring out even more fuel than I already have to...
I would not pull the plug. The suction from the crankcase can draw dust, water vapor, and other contaminants into the crankcase, and/or plug the mesh screen within the OCS.

Quote:
Originally Posted by detours View Post
...Unless I hear a convincing argument (as to why it's better to pour gas on the ground than to burn it), I'm going to stick with the opposite orientation. I've been running it like this for several thousand miles with no ill effects, no loss of power and good mpg (65 to 70 mpg).

And if it makes the engine run slightly richer ... well, I was going to pour that gas out anyway. I might as well give it a chance to burn inside the engine before sending it out the tailpipe.
I'm with you. My RX3 was delivered with the OCS in the "unofficial" position. Since then I have ridden over 14,000 miles with my OCS in the "unofficial" position, and I have not noticed any ill effects whatsover. In addition, the OCS for my Honda XR650L is designed to burn the fuel vapors.



I can't see how it is preferable to spill the fuel, rather than burn it.
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Spud

"Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain

2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220

Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894



Last edited by SpudRider; 05-02-2016 at 11:18 PM.
 
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