what is this GY200? - Page 4

Weldangrind · 01-31-2018, 10:34 AM

I agree with Azhule and Jerry. I'm also confident that the cat is exacerbating the problem.

rjmorel · 01-31-2018, 03:00 PM

" I'm also confident that the cat is exacerbating the problem."
Curious as to why so Weld? rj

rjmorel · 01-31-2018, 09:03 PM

fyi , not exhaust leak , I tightened every thing on header where it goes into cylinder and head pipe to muffler section and still makes knocking sound. But agree the vid does sound a lot like a exhaust leak.
Noise seems to be coming down where cylinder meets engine cases, maybe cam shaft area? , Rj

rjmorel · 01-31-2018, 10:28 PM

currently taking off valve train , head , cylinder to see whats what. What a pain , thought I could do it all in the bike but the way they design things it doesn't have enough room or tilt in motor once you loosen mounting bolts to get head off.

rj

Ariel Red Hunter · 02-01-2018, 09:07 AM

Quote:

Originally Posted by rjmorel

For those of you who have a foot fetish,

here's a really bad vid I took so you can hear the motor knocky knock. Sound is ok ,vid is pointed all over the place as I was keeping machine running. Tried to show smoke coming out of exhaust .

Ignore water on floor, not from bike. Any ideas on the knock.?

Kinda sounds like "the little wood chopper" wacking away don't it? Enjoy rj

Sounds like the piston pin to me...ARH

Weldangrind · 02-01-2018, 10:54 AM

Quote:

Originally Posted by rjmorel

Curious as to why so Weld? rj

What I meant was that if you have an exhaust leak at the head, it makes sense that the cat is creating the problem. If you cut the cat out, you'll see how ridiculously restrictive it is.

rjmorel · 02-01-2018, 03:54 PM

Got it Weld. I take it you physically cut the pipe in 2 on each side of the cat and add a piece of pipe to replace it?
Or do you cut it in 2 in the middle of the cat and give it a good roto-rooting to clear as much of the cat out as you can? rj

Cravin01 · 02-01-2018, 08:00 PM

I would think cutting a window in the cat area would be better, that way you keep the pipes length and positioning correct. I found a small pneumatic 3 in. cut off tool at Harbor freight for $7.99 that's perfect for the task.

rjmorel · 02-01-2018, 08:39 PM

Great idea Cravin01, You da man. Thanks
So I took it apart after thinking about it last night. I was able to leave bottom end in frame by loosening the 2 front motor mount to frame bolts and pushing it away far enough to let the motor swing forward with clearance to spare to get head and cylinder off.
But you guys already probably new how to do that.
What I found is the lower conn rod bearing is very tight. I had felt like it kicked thru with more resistance then normally. The piston wrist pin pivots normally with no problem. The bottom conn rod bearing is like it doesn't have enough clearance or it was pressed together too tight??? Or Bubba original owner didn't put oil in it from the git go. Front of piston looks like it ran dry or got hot and started to melt a little.
Spare part motor I guess for now since I have the new one on its way and I'm pressed for time to mess with this one, RJ

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rjmorel · 02-01-2018, 09:16 PM

So this got me thinking. What other bikes have these jl163fml motors been put into that didn't originally have one ? I'm talking project bikes that had to do some reframing to get this motor in and work? Just curious if anyone has put these in some other bike that had a different motor in like a 2 stroke . I have a Honda MT125 that I'm redoing but havn't tried putting diff motors in a diff bikes. RJ

Weldangrind · 02-02-2018, 10:03 AM

Quote:

Originally Posted by Cravin01

I would think cutting a window in the cat area would be better, that way you keep the pipes length and positioning correct. I found a small pneumatic 3 in. cut off tool at Harbor freight for $7.99 that's perfect for the task.

My thoughts exactly. You need to cut the window rather wide, because the cat is a bear to get out. Then, just weld the window back in.

Weldangrind · 02-02-2018, 10:04 AM

Quote:

Originally Posted by rjmorel

So this got me thinking. What other bikes have these jl163fml motors been put into that didn't originally have one ? I'm talking project bikes that had to do some reframing to get this motor in and work? Just curious if anyone has put these in some other bike that had a different motor in like a 2 stroke . I have a Honda MT125 that I'm redoing but havn't tried putting diff motors in a diff bikes. RJ

The list goes on and on. I dropped a 230cc version into Son of Weldangrind's XR200, but that was easy. There was a gentleman on this forum who made a vintage board track racer with a CG200.

rjmorel · 02-02-2018, 12:28 PM

Fed EX just dropped new motor off this morning. $499 form Ebay. Whoohoo, maybe install this weekend after work. rj

**JerryHawk250** · 02-02-2018, 01:24 PM

Ohhh!

Hurry and open the box . lol

rjmorel · 02-02-2018, 01:28 PM

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01-31-2018, 10:34 AM	#46
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I agree with Azhule and Jerry. I'm also confident that the cat is exacerbating the problem. __________________ 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
	0

01-31-2018, 03:00 PM	#47
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	" I'm also confident that the cat is exacerbating the problem." Curious as to why so Weld? rj __________________ Live Zong, and Prosper
	0

01-31-2018, 09:03 PM	#48
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	fyi , not exhaust leak , I tightened every thing on header where it goes into cylinder and head pipe to muffler section and still makes knocking sound. But agree the vid does sound a lot like a exhaust leak. Noise seems to be coming down where cylinder meets engine cases, maybe cam shaft area? , Rj __________________ Live Zong, and Prosper
	0

01-31-2018, 10:28 PM	#49
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	currently taking off valve train , head , cylinder to see whats what. What a pain , thought I could do it all in the bike but the way they design things it doesn't have enough room or tilt in motor once you loosen mounting bolts to get head off. rj __________________ Live Zong, and Prosper
	0

02-01-2018, 03:54 PM	#52
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	Got it Weld. I take it you physically cut the pipe in 2 on each side of the cat and add a piece of pipe to replace it? Or do you cut it in 2 in the middle of the cat and give it a good roto-rooting to clear as much of the cat out as you can? rj __________________ Live Zong, and Prosper Last edited by rjmorel; 02-01-2018 at 04:29 PM.
	0

02-01-2018, 08:00 PM	#53
Cravin01 Join Date: Jan 2018 Location: Forney Texas Posts: 498	I would think cutting a window in the cat area would be better, that way you keep the pipes length and positioning correct. I found a small pneumatic 3 in. cut off tool at Harbor freight for $7.99 that's perfect for the task.
	2

02-01-2018, 08:39 PM	#54
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	Great idea Cravin01, You da man. Thanks So I took it apart after thinking about it last night. I was able to leave bottom end in frame by loosening the 2 front motor mount to frame bolts and pushing it away far enough to let the motor swing forward with clearance to spare to get head and cylinder off. But you guys already probably new how to do that. What I found is the lower conn rod bearing is very tight. I had felt like it kicked thru with more resistance then normally. The piston wrist pin pivots normally with no problem. The bottom conn rod bearing is like it doesn't have enough clearance or it was pressed together too tight??? Or Bubba original owner didn't put oil in it from the git go. Front of piston looks like it ran dry or got hot and started to melt a little. Spare part motor I guess for now since I have the new one on its way and I'm pressed for time to mess with this one, RJ __________________ Live Zong, and Prosper Last edited by rjmorel; 02-01-2018 at 09:10 PM.
	1

02-01-2018, 09:16 PM	#55
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	So this got me thinking. What other bikes have these jl163fml motors been put into that didn't originally have one ? I'm talking project bikes that had to do some reframing to get this motor in and work? Just curious if anyone has put these in some other bike that had a different motor in like a 2 stroke . I have a Honda MT125 that I'm redoing but havn't tried putting diff motors in a diff bikes. RJ __________________ Live Zong, and Prosper
	0

02-02-2018, 12:28 PM	#58
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	Fed EX just dropped new motor off this morning. $499 form Ebay. Whoohoo, maybe install this weekend after work. rj __________________ Live Zong, and Prosper
	2

02-02-2018, 01:24 PM	#59
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,707	Ohhh! Hurry and open the box . lol __________________ 2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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02-02-2018, 01:28 PM	#60
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	__________________ Live Zong, and Prosper
	1