05-28-2016, 07:55 PM | #121 | |
Join Date: Feb 2016
Location: Portsmouth, Virginia, USA
Posts: 632
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Quote:
I bet your diesel engines had a thermostat that got them up to at least 180F. Our Zongs don't. The Zong engineers have most certainly decided that it was worth it to cut costs and eliminate a thermostat bypass circuit. The KLR engineers did the same thing. We can learn from the KLR owners because the cooling circuit is so similar and problematic. |
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05-29-2016, 01:08 AM | #122 |
Join Date: May 2007
Location: Warshington
Posts: 928
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All good points mentioned above. A lingering thought in my head thing is if we could buy a 190 deg thermostat to replace the one in our motors ,would that do what we want to bring temps up or am I missing the jist of the whole excersise? rj
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05-29-2016, 02:21 AM | #123 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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A 180 or 190 degree thermostat would get you partway there. You would also need to replace the fan temp switch so it doesn't come on until the temp you want.
But adding the bypass solves the problem of waves of cold coolant hitting the cylinder whenever the thermostat opens, thereby creating hot and cold spots in the engine. The bypass mixes about 1/3 hot coolant with about 2/3 cold coolant to maintain a more even temperature and help the engine warm up faster on cold days.
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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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05-29-2016, 11:25 PM | #124 | |
Join Date: Feb 2016
Location: George West, Texas
Posts: 4,097
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Quote:
I would think a baseline fuel% would be in order for a test bike before and after the modification. This has been a really interesting thread and am amazed at all the knowledge that has gone into this experiment.
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***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
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05-29-2016, 11:40 PM | #125 |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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You hit the nail on the head about the fuel percent test. That's Huge reason for doing this mod. Reducing engine wear from uneven expansion due to hot/cold spots is the other.
I am not aware of any downside as long as the thermostat and fan temp sensor work properly. Also, the ratio of hot coolant in the bypass to cooler radiator coolant shouldn't be too high. If any of those 3 things fails, I think the bypass would overheat the engine faster than stock. Others with more experience will hopefully correct me or add their insight.
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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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05-30-2016, 12:13 AM | #126 |
Join Date: Sep 2015
Location: East Central Hellinois
Posts: 1,344
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I'm sorry if I've missed reading this ... But has there been any word out of CSC or Zongshen about any warranty voidance issues to altering the cooling system during the coverage term?
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************************************************** *** " Time you enjoy wasting, is not wasted." - John Lennon “I predict future happiness for Americans, if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.” ― Thomas Jefferson "If you don't know where you're going any road will take you there" ....George Harrison song |
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05-30-2016, 12:18 AM | #127 |
Join Date: Feb 2016
Location: George West, Texas
Posts: 4,097
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I think we all know the answer to the modification question.
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***************************************** 2015 Bashan"Blaze" BS250GY-31 (DB-07K-250) GONE 2017 Suzuki V Strom 650 XT "We are all born ignorant, but one must work hard to remain stupid." ~Benjamin Franklin~
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05-30-2016, 12:23 AM | #128 |
Join Date: Sep 2015
Location: East Central Hellinois
Posts: 1,344
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I'm figuring so as well... But hey if this works it might be something Zongshen might be interested in from these fellas!
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************************************************** *** " Time you enjoy wasting, is not wasted." - John Lennon “I predict future happiness for Americans, if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.” ― Thomas Jefferson "If you don't know where you're going any road will take you there" ....George Harrison song |
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05-30-2016, 09:40 AM | #129 | |
Join Date: Jan 2015
Location: England
Posts: 382
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thanks, I'm now on the mend, almost done with my man flu
Quote:
I have a lot of the parts on their way so it shouldn't be to long before I can get started. Firstly I shall be fitting a proper digital temp gauge using a koso adapter, as our built in temp gauge is of less than ideal. This will make monitoring the coolant temp much easier. I'm going to use the 8mm self sealing barb (SST8K) in the bottom hose and hope its squeezing effect when attached in the hose doesn't impede coolant flow too much. As yet I haven't found a better solution. The rest as previously described. If all goes well ,I will then order one of the thermobob higher rated thermostats to complete the job. I think that if I were you guys, living in the USA I would be seeking a solution with watt-mans thermobob complete kit as he quite obviously has a lot of experience with this. Here in the UK I have to consider exchange rate, shipping & local taxes. That said, I have no doubt that if my experiments fail, I will be putting in an order for a thermobob. |
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05-30-2016, 12:07 PM | #130 | |
Join Date: Oct 2015
Location: Berthoud, CO
Posts: 205
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Quote:
Meanwhile, with the OCS in the new "official" orientation, the collection tube fills up on a day's ride.
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Dan CSC RX3 Cyclone, CSC TT250, Moto Guzzi V7 II, KLR650 |
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05-30-2016, 02:03 PM | #131 |
Join Date: Sep 2014
Location: Orange County, CA
Posts: 410
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I am experiencing the same, Redhawk. I put my OCS in the "official" position and did a 2 hour ride this morning. I now have 1/3 of my collection tube filled. In the unofficial position, it would remain bone dry. Later this afternoon, I'm flipping my OCS back to the "unofficial" position.
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05-30-2016, 11:09 PM | #132 |
Join Date: Jan 2016
Location: San Jose, Ca
Posts: 52
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I'm a little confused, isn't it better to have more fuel vapor condense and drop into the OCS tube rather than have it remain in the crankcase? Maybe it just gets burned with the intake charge instead when upside down? Sorry, I know this has been discussed at length......
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05-30-2016, 11:24 PM | #133 | |
Join Date: Jul 2015
Location: Milpitas, CA. USA
Posts: 775
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Quote:
Because it works in that way for some folks, they tend to preach that every bike should do it that way also. Do what works for you. Mine is in the "official" position and I seldom have build up. It was worse before I noticed that a couple of the clamps that hold the tube to the air canister were squeezed too tight, restricting the breathing. |
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05-31-2016, 01:55 AM | #134 | |
Join Date: Sep 2014
Location: Arvada, CO
Posts: 1,004
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Quote:
However, in my opinion the unofficial orientation improves the vapor flow to the airbox, burning fuel vapor in combustion instead of condensing it in the catchtube. I say this because the oil temps are the same, which 'should' evaporate the same amount of fuel. Less fuel in the catchtube 'should' mean more vapor in the air intake. But without doing a lot of oil analysis, I can't be certain which is better.
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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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