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#1 | |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Quote:
My answer would be to periodically change the rockers as a maintenance item, before they grenade. Since the RX3 uses conventional tappets instead of shim and bucket, it would be really easy to swap the rockers, say every 20,000km or so. The only difficulty I can think of would be initially loosening the rocker shafts; it was like they were welded in on my KLR250. Of course, consistent oil changes are always a good thing, and maybe with proper service, the needle bearings would never fail within the lifetime of the motor. If a needle roller decides to fail, it'll end up in the bottom of the crankcase.
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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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#2 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I'm now sure the crankshaft port is located in the center of the stator cover.
![]() ![]() Here is another photograph of a functional engine. ![]()
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." ![]() 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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#3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Those sprockets look like CRF parts.
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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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#4 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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The Honda, CRF C/S sprocket has 21 splines.
http://www.jtsprockets.com/catalogue/model/5161 ![]() However, the Zongshen, RX3 C/S sprocket has 13 splines. Therefore, I suspect the RX3 C/S sprocket might be the same as the Suzuki TU250, or GW250. ![]() http://www.jtsprockets.com/catalogue/model/5772 ![]()
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." ![]() 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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#5 |
Join Date: Sep 2014
Posts: 247
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Guys:
Joe from CSC here. I write the CSC blog. I've been following this thread with great interest. I'm overseas this week but I'll be back in California next week. Let me know what I can do to help. ![]() |
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#6 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Welcome Joe, great to have you on board.
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Mark 2015 Haosen Hawk 250 2014 CRF250L 2014 CB500X Rally Raid |
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#7 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Welcome, Joe!
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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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#8 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Welcome to these forums, Joe.
![]() ![]() If you are in China, please try to find out what size bearings are used in the lower shock linkage of the RX3. Also, is there in English service manual for the RX3 in digital format? I would love to start studying the service manual. ![]()
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." ![]() 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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#9 | |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Quote:
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Mark 2015 Haosen Hawk 250 2014 CRF250L 2014 CB500X Rally Raid |
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#10 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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It appears the Zognshen RX3 employs the same rear sprocket as the Xinyuan X2, and Xinyuan X5 bikes, as well as some KTM motorcycles.
http://item.taobao.com/item.htm?spm=...06&ns=1#detail However, we won't know until we can measure one of these sprockets. ![]()
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." ![]() 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; 09-18-2014 at 06:22 PM. |
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#11 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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The Honda, CRF and XR rear sprokets are nearly identical to many KTM rear sprockets; the only difference is the diameter of the centerline of the bolt holes.
The centerline of the bolt holes for the Honda, CRF and XR rear sprockets has a diameter of 153mm. http://www.jtsprockets.com/catalogue/sprocket/JTR210 ![]() The centerline of the bolt holes for many KTM rear sprockets has a diameter of 150mm. http://www.jtsprockets.com/catalogue/sprocket/JTR897 ![]() I suspect the Zongshen RX3 employs KTM rear sprockets. However, either Honda or KTM rear sprockets will serve well, since they are available with a wide range of teeth. ![]() ![]() The Minski TRX 300i sold in Russia employs a 13T/37T sprocket combination, since it has a larger, 17-inch rear wheel. The Zongshen RX3 employs a 13T/44T rear sprocket, since it has a 15-inch rear wheel. If one installs a larger rear wheel on the CSC Cyclone RX3, he will undoubtedly want to switch to a 13T/38T, 14T/40T, 15T/43T, or 16T/46T sprocket combination. Of course, if one switches from the stock sprocket combination, the chain length will also likely change. ![]()
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." ![]() 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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#12 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Agreed. I'm falling in love with that bike! Mrs. Weldangrind has been warned that I'm likely to buy one if they hit Canada at a reasonable price.
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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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#13 | |
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." ![]() 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; 09-20-2014 at 01:51 AM. |
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#14 |
Join Date: Sep 2008
Location: central PA
Posts: 770
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New zong
This message. Goes out to Steve. The cSC rep. On here , you say your listening. Well no one wants a. 15" rear wheel. If the bikes aren't built yet , why not put the 17" On it , it's already on it in Europe an there are more tired available , especially if one is out traveling. Anyone else. ? Please. Chime. In. Let's. Try an convince them ,
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2015 zongshen rx3,,(Sold),,,2016 bashan storm,,2005 Harley ultra classic. |
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#15 |
Join Date: Sep 2014
Posts: 1,894
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Yes, a 15" wheel would be a deal breaker for me.
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