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05-03-2016, 11:07 AM | #16 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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I'm not sure about motorcycle EFI's but back in the day when I was a wrench, car injections systems were only in open loop in "choke mode" and the ECM would function is set, mapped parameters. Once they heated up to operating temp, they switched to closed loop and stayed there allowing the O2 sensor and map/baro or MAF sensors to do their jobs and adjust air/fuel ration constantly through block learn and integrator in your ECM. If this is the case here, the O2 sensor would sniff the extra fuel being recycled and shorten the injector pulse width slightly to keep the air-fuel ratio as close to 14.7/1 as possible.
If this injection system works like that, I have no idea..........
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05-03-2016, 01:37 PM | #17 | |
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Location: Idaho
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Quote:
I agree with you completely; the OCS does a great job removing fuel and water contaminants from engine oil in the crankcase. Also, I'm sure most of the liquid content is water.
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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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05-03-2016, 01:39 PM | #18 |
Join Date: Sep 2014
Location: Arvada, CO
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I've wondered about that myself. My only concern would be that condensation inside the line would run back into the crankcase ... or get caught in a U-bend and block suction.
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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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05-03-2016, 01:52 PM | #19 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Many motorcycles do exactly as you stated. However, having an oil contaminant system is a superior design. The OCS traps contaminants as quickly as possible, and eliminates them from the crankcase. The single, long vertical hose employed by the other systems allows many contaminants to flow back into the crankcase before they ever reach the air box.
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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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05-03-2016, 01:58 PM | #20 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
http://www.electronicjetkit.com/default.asp http://www.dobeckperformance.com/
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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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05-03-2016, 02:01 PM | #21 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Once again, you are correct, amigo. A lot of the water, and some of the fuel would drop back into the crankcase oil before it reached the air box. The OCS for the Zongshen RX3 is a very nice design.
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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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05-03-2016, 02:16 PM | #22 |
Join Date: Oct 2015
Posts: 321
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I guess if it comes out of the crankcase as vapor it could, in part, condensate over the pipe walls.. the OCS anyway is doing that on purpose.
Any fluid going back to the oil will evaporate again, in the next hot cycle. Having a straight pipe is mandatory, anyway, any U bend will act as a reservoir and eventually fill up. I'm not too fond of having to drain the OCS pipe, and in long trips it have filled up and made somewhat of a mess spilling oily fluid all over engine side. Nothing to worry about, my bike spends most of the time filthy anyway, haha |
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05-03-2016, 02:20 PM | #23 |
Join Date: Oct 2015
Location: White Mtns. NH
Posts: 488
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you would not believe the crap in the air cleaner of my Ural that does just that, milky condensation mixed with an oily mess.
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05-03-2016, 04:01 PM | #24 |
Join Date: Jun 2015
Location: Escondido, CA
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Really Confused Now!
Very interesting discussion, BUT for us non mechanics, would someone PLEASE post a picture of the best way to mount the OCS. Apparently there are merits to mounting the OCS both ways.
I "presume" that the preferred/ best method is the one that keeps "stuff" out of the crankcase and allows the engine to run smoothly at all rpm's. Thanks for all your input.
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05-03-2016, 05:08 PM | #25 | |
Join Date: Sep 2014
Location: Arvada, CO
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Quote:
To me, it's a question of whether you want more or less fluid in the catchtube:
For my part, unless CSC says the OCS orientation will affect my warranty ... or until I learn compelling reasons why burning fuel vapor from the OCS is worse on the environment than pouring fuel condensate on the ground ... I intend to mount my OCS 'upside-down', so as to burn as much of the fuel vapor from the crankcase as possible and to collect as little fuel in the catchtube as possible.
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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 Last edited by detours; 05-03-2016 at 06:08 PM. |
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05-03-2016, 09:49 PM | #26 |
Join Date: Oct 2015
Location: vermont
Posts: 238
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i am leaning on the side of detours but then again not sure i want to burn the crap at the bottom of the tube might be draining it the way to go well getting very good at flipping it kind of like my opinion
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05-03-2016, 11:36 PM | #27 | |
Join Date: Sep 2014
Location: Arvada, CO
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Quote:
Remember, the OCS filter is shaped like a cup. In the 'upside down' orientation, vapors must pass through 2 filter walls (the side and the floor of the filter) before reaching the air intake. Heavy contaminants like oil and particulates will be filtered out by one or the other filter wall, dissolved in condensate fuel and dropped into the catchtube. In the opposite 'official' orientation, vapor will only pass through one filter wall and up the open part of the cup. This is another reason why I like the 'upside down' orientation.
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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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05-03-2016, 11:52 PM | #28 | |
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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05-04-2016, 12:19 AM | #29 |
Join Date: Oct 2015
Posts: 51
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I just flipped mine around even though I've been riding trouble free for 8000 miles. I noticed that tube was filled with gas. I never had bother to drain it this whole time.
I agree with spudrider that the hose does seem kinked in acute angle but I went ahead and did the flip. Maybe later when I have more time, I'll shorten the tube to make it more natural. The process probably took all of 10 minutes at the max. |
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05-04-2016, 12:38 AM | #30 |
Join Date: Sep 2014
Location: Orange County, CA
Posts: 410
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I flipped mine around to the "correct" orientation, but I don't like the kinked hose. I slept on it overnight and I'm pretty certain I'm going to change it back to the way it came (i.e. the "incorrect" orientation) as it never gave me a lick of trouble.
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