09-20-2015, 01:58 PM | #31 | |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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Quote:
I still have not found time to open the airbox and look for obstructions there or in the line. Hopefully I'll be able to this afternoon.
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Red 5 standing by! 2015 CSC red RX3 with 19" front wheel, Shinko 804/805, skid plate, tall seat, 13T/45T sprockets, progressive shock, Winyoochanok windshield, GENSSI LED headlight, SW-Motech tankbag, Shorai Lithium battery 2014 Ural Patrol |
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09-20-2015, 02:17 PM | #32 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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Sorry for the trouble your having but thats a cool picture.
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09-20-2015, 02:20 PM | #33 |
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
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You won't find an obstruction because it is operating as designed.
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09-20-2015, 03:30 PM | #34 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
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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 |
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09-20-2015, 03:44 PM | #35 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Since fuel is collecting in the bottom tube, there must be either an obstruction in the partial vacuum line to the air box, or the oil separator is defective.
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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; 09-20-2015 at 05:37 PM. |
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09-20-2015, 03:46 PM | #36 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Do you notice the fuel collecting only after longer stints at high engine rpms?
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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 |
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09-20-2015, 04:42 PM | #37 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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I definitely see more fuel collecting after long, high RPM runs. When I finished our 4 hour ride to Estes Park yesterday, the tube was full to the top. I think some fuel collects all the time and slowly drops out.
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Red 5 standing by! 2015 CSC red RX3 with 19" front wheel, Shinko 804/805, skid plate, tall seat, 13T/45T sprockets, progressive shock, Winyoochanok windshield, GENSSI LED headlight, SW-Motech tankbag, Shorai Lithium battery 2014 Ural Patrol |
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09-20-2015, 06:02 PM | #38 |
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
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As I see it The separator does its job as described and allows vapors by into the air box until high RPM's.In that scenario Maybe that is why the stand pipe is there to collect the solids that accumulate at High RPM's.Without the liquid standpipe than the air box could become over saturated with raw fuel instead of vapors.We may be all overthinking this one.
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09-20-2015, 08:42 PM | #39 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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You could look at it as spare bonus fuel. Handy when you run low.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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09-20-2015, 09:00 PM | #40 |
Join Date: Jul 2015
Location: Milpitas, CA. USA
Posts: 775
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I use my RX3 mostly for commuting and my freeway portion is at or near redline, but I haven't had the fuel issue that you have, Detours. Interesting problem.
Just now, while writing this reply, I thought back to when I first received mine and remembered noticing that the U shaped clamp (just above the clutch release lever) on the left side of the cylinder appeared to be bent too tight. Looked as if it was skwooshing (technical term) the hose quite a bit, so I dis-skwooshed it a little until I felt it wasn't pinching the hose but would still hold it snug. Have you given that a look? I'd go take a picture but I just got out of the shower, it's 91F, and don't really feel like putting clothes on. Neighbors have kids, you know. Still, if your oil is smelling of fuel, I think you have some other problem than just a breather/separator. Injector dribbling when the engine is off? Interesting. |
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09-20-2015, 10:04 PM | #41 |
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
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My bike experiences the same effects as detours bike does.
Standpipe is there for a reason. When it's full you might have 2oz.of fuel...so what. If the bike runs fine and maintains good gas mileage(60-65 mpg) Then you need not worry. |
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09-20-2015, 10:16 PM | #42 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
__________________
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 |
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09-20-2015, 10:22 PM | #43 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
I strongly encourage you to examine the oil separator, and the hose leading to the air box. However, if you wish to collect fuel in the drain tube, it's not the worst thing in the world. Nevertheless, the oil separator was definitely not designed to operate in this manner.
__________________
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 |
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09-20-2015, 10:23 PM | #44 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
__________________
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 |
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09-20-2015, 10:45 PM | #45 |
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
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I believe that it is designed to capture some combustible fuel.You say it is a problem and I say it is not.I believe it does pass gas fumes to the air box for 99% of it but at high speed some fuel falls out of suspension and that is one of the jobs of the stand pipe...to collect it.That is my theory FWIW.
But I have enlisted the help of a guy who could probably clear this up, Joe Berk of CSC.He rode 5,000 miles at 8,000 RPM's(also the name of his book he just wrote)With Zongshen engineers riding along with him and I'm thinking he may have some insightful info into this. I have not seen him on this forum but he does frequent the ADV rider thumper section under our bike. I went on there and posed the question to him so maybe we will get an answer beyond the speculation. |
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