XR200 barrel

Qingdao · 04-23-2009, 02:43 AM

Haven't been on this site for a while, but I floated a valve in my LB200-2 (buggered it up good). Anyways it gives me an excuse to do all the things I wanted to do.

I got plans for a 32mm flat slide carb, XR200 jug, and a Wiseco 10:1 piston. NO MORE P FOOT'N AROUND.

BTW: there is a red line on the tack. Apparently they put it there so you know when you should get off the throttle. I was un-aware of this fact when I broke my exhaust valve. :twisted:

SpudRider · 04-23-2009, 03:53 AM

Quote:

Originally Posted by Qingdao

Haven't been on this site for a while, but I floated a valve in my LB200-2 (buggered it up good)...BTW: there is a red line on the tack. Apparently they put it there so you know when you should get off the throttle. I was un-aware of this fact when I broke my exhaust valve. :twisted:

So that's the purpose for the red line! Thank you! :roll:

Spud

katoranger · 04-23-2009, 08:49 AM

Make sure to take pics and give details.

Allen

SpudRider · 04-23-2009, 02:18 PM

Quote:

Originally Posted by Qingdao

...I got plans for a 32mm flat slide carb, XR200 jug, and a Wiseco 10:1 piston...

That sounds like a fun, interesting project.

Please do take photos and post them. I have learned very much from the polite, helpful members of these forums.

Spud

Qingdao · 04-24-2009, 03:46 AM

That is the original problem :roll:
I am pretty sure it was the cause the motor was really hot (running on a stand and not using sufficiant fans) and I had just used some nitrous before I blew it.

This is why I am not going to attemt any kind of boring or anything on this jug.

SpudRider · 04-24-2009, 01:09 PM

Quote:

Originally Posted by Qingdao

...That is the original problem :roll:
I am pretty sure it was the cause the motor was really hot (running on a stand and not using sufficiant fans) and I had just used some nitrous before I blew it...

Yikes! Was the valve stem burned into two pieces?

Quote:

Originally Posted by Qingdao

...This is why I am not going to attemt any kind of boring or anything on this jug.

Yes, I see why; 2.5 mm does not give you a lot of material to play with.

Thanks for posting the great photos, Qingdao! If possible, please keep us updated as you continue your project.

Spud

Qingdao · 04-25-2009, 03:16 AM

Found a jug on the "bay" and went for the leap of faith. I hope it fits. I feel pretty confodent it will.

I haven't mentioned this on this site but there is a problem with the substitution. The XR is an overhead cam not a push rod engine. So a hole will have to be made in the side of the XR cylinder that I purchased. Not to worry the machine shop that is going to be doing the boring to the cylinder can take care of a simple hole to suspend push rod components.

BTW: due to the fact that I am purchasing a used barrel I am going to bore it out to .25mm over the STD of 65.5mm. Not as much for performance as for the fact that a used barrel could have imperfections that a boring will deffenitly take care of. Although, 222cc sounds really good. :P

Qingdao · 05-03-2009, 03:06 AM

Yeah, it don't work. The timming track on the XR cylinder is smaller.

Oh well it was worth a shot.

I have found out that the 185 ATC piston does work in the FML 163. So I guess I am on another quest to waste money to find a Wisco (or other high comp piston) 63.5mm or 64mm piston.

Qingdao · 06-16-2009, 03:36 AM

Well you may not be able to put an xR200 jug on the china-bike but you can take a Honda ATC piston (which matches the stroke) and cut it down at a machine shop and get some more compression.

Just thought I would let you guys know.

Dragon · 06-16-2009, 09:54 AM

What's a jug?

Qingdao · 06-17-2009, 12:27 AM

Quote:

Originally Posted by Dragon

What's a jug?

Barrel or cylinder. :wink:

TheRealWorld · 06-18-2009, 11:34 PM

How do you inject the nitrous?

Qingdao · 06-19-2009, 01:41 AM

Quote:

Originally Posted by TheRealWorld

How do you inject the nitrous?

Yeah, I have been thinking about NOT using any more. I was injecting before the carb, but if I decide to continue using I am going to inject in the intake boot.

Qingdao · 06-24-2009, 10:09 PM

NOW THATS A HIGH TOP PISTON!

04-23-2009, 02:43 AM	#1
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	XR200 barrel Haven't been on this site for a while, but I floated a valve in my LB200-2 (buggered it up good). Anyways it gives me an excuse to do all the things I wanted to do. I got plans for a 32mm flat slide carb, XR200 jug, and a Wiseco 10:1 piston. NO MORE P FOOT'N AROUND. BTW: there is a red line on the tack. Apparently they put it there so you know when you should get off the throttle. I was un-aware of this fact when I broke my exhaust valve. :twisted: __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0

04-23-2009, 08:49 AM	#3
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Make sure to take pics and give details. Allen __________________ You meet the nicest people on a Honda Clone.
	0

04-24-2009, 03:46 AM	#5
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	That is the original problem :roll: I am pretty sure it was the cause the motor was really hot (running on a stand and not using sufficiant fans) and I had just used some nitrous before I blew it. This is why I am not going to attemt any kind of boring or anything on this jug. __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0

04-25-2009, 03:16 AM	#7
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	Found a jug on the "bay" and went for the leap of faith. I hope it fits. I feel pretty confodent it will. I haven't mentioned this on this site but there is a problem with the substitution. The XR is an overhead cam not a push rod engine. So a hole will have to be made in the side of the XR cylinder that I purchased. Not to worry the machine shop that is going to be doing the boring to the cylinder can take care of a simple hole to suspend push rod components. BTW: due to the fact that I am purchasing a used barrel I am going to bore it out to .25mm over the STD of 65.5mm. Not as much for performance as for the fact that a used barrel could have imperfections that a boring will deffenitly take care of. Although, 222cc sounds really good. :P __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0

05-03-2009, 03:06 AM	#8
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	Yeah, it don't work. The timming track on the XR cylinder is smaller. Oh well it was worth a shot. I have found out that the 185 ATC piston does work in the FML 163. So I guess I am on another quest to waste money to find a Wisco (or other high comp piston) 63.5mm or 64mm piston. __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0

06-16-2009, 03:36 AM	#9
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	Well you may not be able to put an xR200 jug on the china-bike but you can take a Honda ATC piston (which matches the stroke) and cut it down at a machine shop and get some more compression. Just thought I would let you guys know. __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0

06-16-2009, 09:54 AM	#10
Dragon Join Date: Nov 2007 Location: Tejas Posts: 834	What's a jug? __________________ Chinabikeless
	0

06-18-2009, 11:34 PM	#12
TheRealWorld Join Date: Jun 2008 Posts: 817	How do you inject the nitrous?
	0

06-24-2009, 10:09 PM	#14
Qingdao Join Date: Jun 2008 Location: Charleston, SC Posts: 351	NOW THATS A HIGH TOP PISTON! __________________ <div><a href="http://www.youtube.com/watch?v=X2ilH...s</a></div><br />
	0