2005 NewStar 250 - Page 2

Motohead · 08-07-2016, 12:39 PM

Quote:

Originally Posted by Darth Racer

If it helps any ....

https://translate.google.com/transla...romSite%3Dmain

and

https://translate.google.com/transla...3D523998146869

Thanks for the translated links the one on the top looks the closest to my cylinder however the cutout for the push rods on my cylinder is the same shape as the head gasket not just holes drilled down through the cylinder for the pushrods. The 4 water passages look right $18.00 seems crazy cheep how would I order

humanbeing · 08-07-2016, 04:18 PM

Quote:

Originally Posted by Motohead

Maybe I measured it wrong but I came up with 64 mm bore...

The 200?! http://item.taobao.com/item.htm?id=36366772153 pin Ø15 | Barrel height ~76 [250 pin Ø16 | Barrel height ~79]

Motohead · 08-08-2016, 12:43 PM

Quote:

Originally Posted by humanbeing

The 200?! http://item.taobao.com/item.htm?id=36366772153 pin Ø15 | Barrel height ~76 [250 pin Ø16 | Barrel height ~79]

Don't know it has 250 emblems on it I'll re-measure when I get back into town.

Motohead · 08-13-2016, 04:28 PM

Quote:

Originally Posted by Motohead

Don't know it has 250 emblems on it I'll re-measure when I get back into town.

Well its about 64 for sure measured it several times. So either its miss-labeled or has a different stroke. so should I get a gasket for the 200 and does anyone know of a dealer that stocks parts in St. Louis MO area ?

Motohead · 08-15-2016, 06:45 PM

Well here's my first attempt at a home made head gasket. I still need to figure out the fire ring probability won't last long without it. I'm going to pick up a hollow punch set for my next attempt I'm trying to get this thing running for Labor Day weekend. Too late to wait for China shipments if I could even find the part. If anyone knows of a US supplier that might have this let me know.
This guy makes it look easy

BlackBike · 08-15-2016, 08:08 PM

Quote:

Originally Posted by Motohead

Well here's my first attempt at a home made head gasket. I still need to figure out the fire ring probability won't last long without it. I'm going to pick up a hollow punch set for my next attempt I'm trying to get this thing running for Labor Day weekend. Too late to wait for China shipments if I could even find the part. If anyone knows of a US supplier that might have this let me know.
This guy makes it look easy

well done good sir

BARLOW · 08-18-2016, 12:28 PM

http://www.ebay.com/itm/Water-Cooled...FXs-Gy&vxp=mtr

Motohead · 08-18-2016, 05:28 PM

Quote:

Originally Posted by BARLOW

http://www.ebay.com/itm/Water-Cooled...FXs-Gy&vxp=mtr

Quote:

Originally Posted by BARLOW

http://www.ebay.com/itm/Water-Cooled...FXs-Gy&vxp=mtr

Thanks I've ordered it my gasket has 4 not 5 water passages though but looking at the design of the cylinder it should work just fine I'm going to go ahead and put it back together with the homemade gasket for now so the kids will have something to putt around on labor day hopefully it will last a couple of hours

Thanks everyone for all your help I let you know how it comes out

bogieboy · 08-19-2016, 06:15 AM

if your bore is 64mm I wonder if someone slapped a 200cc in it at some point.... can you measure the stroke, I.e. the hight of the barrel with the piston down in it, as in bottom dead center?

Motohead · 08-20-2016, 02:56 AM

Quote:

Originally Posted by bogieboy

if your bore is 64mm I wonder if someone slapped a 200cc in it at some point.... can you measure the stroke, I.e. the hight of the barrel with the piston down in it, as in bottom dead center?

yea i'll check it tomorrow

Motohead · 08-20-2016, 02:58 AM

Anyone have a guess as to what to torque the head bolts to? and what is the valve clearance?

Weldangrind · 08-22-2016, 11:57 AM

Just search Google for CG125 specs; that'll answer your questions.

bogieboy · 08-22-2016, 12:25 PM

if I recall, its around 25ft lb for the head bolts and valves I set to about.008"

Motohead · 04-17-2017, 12:42 PM

Well its been a wile I never installed my home made gasket but I got Cometic to male me one out of copper. Unfortunately ,I have found the reason the original gasket blew. Their is one striped stud and one striped head bolt I am going to try to heli coil the block but I need to find a set of shouldered head bolts has anyone seen any of these around (disregard the stud that's its screwed on to)

Mudflap · 04-17-2017, 02:01 PM

Looks the same as those used on the air cooled CG200/250 engines but measurements would confirm that. May also be the same as the real Honda CG engines.

08-20-2016, 02:58 AM	#26
Motohead Join Date: Jul 2016 Posts: 16	head bolt torque Anyone have a guess as to what to torque the head bolts to? and what is the valve clearance?
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08-22-2016, 11:57 AM	#27
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Just search Google for CG125 specs; that'll answer your questions. __________________ 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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08-18-2016, 12:28 PM	#22
BARLOW Join Date: Jan 2016 Location: central illinois Posts: 362	http://www.ebay.com/itm/Water-Cooled...FXs-Gy&vxp=mtr
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08-19-2016, 06:15 AM	#24
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,042	if your bore is 64mm I wonder if someone slapped a 200cc in it at some point.... can you measure the stroke, I.e. the hight of the barrel with the piston down in it, as in bottom dead center?
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08-22-2016, 12:25 PM	#28
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,042	if I recall, its around 25ft lb for the head bolts and valves I set to about.008"
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04-17-2017, 02:01 PM	#30
Mudflap Join Date: Sep 2014 Posts: 1,869	Looks the same as those used on the air cooled CG200/250 engines but measurements would confirm that. May also be the same as the real Honda CG engines.
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