09-18-2011, 12:52 PM | #16 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I might be wrong, but I think he broke the connecting rod when he dropped the engine while removing it from the frame.
Spud
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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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09-18-2011, 04:16 PM | #17 |
Join Date: Jun 2010
Posts: 380
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Spud, damage during removal highly unlikely, the motor was hastily and gracefully lowered...the neglected still connected choke cable served as a nice tether to keep the engine from falling on my toe. My "shop manual" never mentioned removal of the choke cable. :wink:
A little tricky removing the choke cable w/ an engine hangin on it I tell ya! I did look at a donor bike this afternoon... http://jerseyshore.craigslist.org/mcy/2579265613.html Funny how they always put the pretty side in the ad. Bike was a non runner w/ the harness all messed near the case by the front sprocket. Also, it didn't appear to have similar plugs for the two engine wire looms? I passed, as it is also a 19" / 16" wheel size w/ not too many crossover parts to the Lifan GY5. It was a 163FML fwiw. |
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09-18-2011, 05:12 PM | #18 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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I've NEVER seen a con rod break midshaft like that.
I think this MUST have been a manufacturing defect.
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09-18-2011, 10:20 PM | #19 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
__________________
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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09-18-2011, 10:24 PM | #20 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
__________________
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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09-20-2011, 08:25 PM | #21 |
Join Date: Jun 2010
Posts: 380
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A donor was located this afternoon. It's a BMX Powersports w/ a large tag that reads manufactured by Shineray. The bike is beat up a bit but doesnt appear to have had much use. I might have overpaid at $300, but Im over a barrel so to say. The motor is a 169fml. I've read some mixed reviews on the short stroke motors....a touch more power / higher redline up top but a tad less torque down low??? We shall see.
Awaiting the transplant... Thanks for all the help and advice guys! |
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09-20-2011, 09:29 PM | #22 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Looks like a great deal to me!
You'll have a ton of spare parts to use, share or sell as you see fit. I'd check the valves BEFORE you install it. Much easier.
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09-20-2011, 10:08 PM | #23 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Quote:
Spud
__________________
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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09-20-2011, 10:19 PM | #24 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
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Looks like a good deal. That is a good workhorse engine. I think you will be happy with it.
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09-20-2011, 10:24 PM | #25 |
Join Date: Oct 2009
Location: Alberta, Canada
Posts: 3,274
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I think a running bike for $300 is a great deal! Hoping the transplant goes smooth as silk for you
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09-21-2011, 01:37 AM | #26 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I agree, great deal. You'll benefit from those spare parts.
X3 on setting the valves now. Much easier.
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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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09-21-2011, 08:16 AM | #27 |
Join Date: Jun 2010
Posts: 380
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Thanks for the valve adjustment advice! Popped the valve cover off last night and the valves were very tight! I could not percieve any slack in the rockers at all and couldn't get the thin .002" to pass! The valve cover inside appears a darkish / stained like dark brown oil. The cover off my existing engine is squeeky clean silver aluminum color on the inside.
Might this motor have been pushing exhaust gas out a valve that wasn't completely shut and burnt a valve? I did loosen up the valves and the motor appears to have a little better "pop" on the compression cycle w/ my thumb over the spark hole. Hah real technical. The donor motor was hard starting, would idle for 5 seconds, stall and restart and would eventually only idle for a minute or so untill it would take throttle. I did run the bike around in first gear and it appeared to run "normal". At this point I think I will set the valves and install the motor and see how it runs. I think I could use the top end from my failed motor, but I don't think i will take the head off the donor...sound reasonable? Thanks guys! |
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09-21-2011, 09:37 AM | #28 |
Join Date: Sep 2011
Location: Westhampton Mass USA
Posts: 155
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If it where me (and I did just do this with my possible donor motor for my XL175) I would pull the head while you have it out. to clean the valves you will need a valve spring compressor. (sears or Ebay) but it only take an hour or less to pop it off and clean it all up. (you will need new gaskets)
Or just mount it up and throw some seafoam in the gas to clean the valves. (sounds more like an option for you. ) Where are you located if you are east coast us I would be happy to help. (I am in mass.) |
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09-21-2011, 10:06 AM | #29 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Since the motor is easy to install, I'd run it as is with properly set valves and good gas. Get it nice and hot and change the oil and enjoy it. I bet it will last a long time.
If it smokes, I'd pull the head back off and lap the valves and change the valve stem seals. Yes, you would lose compression out of both valves if they're too tight.
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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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09-21-2011, 11:43 AM | #30 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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I'd do nothing more than set the valves install the motor ride and enjoy.
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