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Old 04-08-2013, 04:57 PM   #11
SpudRider   SpudRider is offline
 
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Join Date: Jul 2008
Location: Idaho
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Quote:
Originally Posted by katoranger
I don't know if the cylinder wall would be thick enough for that. I also think that the xt250 is a different case from the tw/xt200 so the cylinder probably wouldn't work.
The ZS250GS cylinder bore is 72.5mm, and the XT250 piston is 74mm in diameter. Therefore, the difference is 1.5mm, which might work. However, I would certainly defer to a machinist's judgement. I think any piston with a diameter of 72.5mm and a wrist pin with the correct diameter to fit the connecting rod will work.

The XT250 engine case is definitely different from the Zong/TW200 engine case. An XT250 cylinder would not fit the ZS250GS crankcase. :(

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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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