12-04-2010, 09:41 PM
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#32
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Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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Quote:
Originally Posted by SpudRider
Here are the specs for the Yamaha, TW200 engine: 67.0mm Bore x 55.7mm Stroke
It appears Zongshen kept the TW200 engine bore, and increased the stroke to gain the extra 34cc engine displacement. Therefore, TW200 pistons, and piston rings should work in the 230cc, Zongshen engine. However, the connecting rod, cylinder, and cylinder head might be unique to this motorcycle. Also, the engine might be 5.5mm taller. A taller engine might require slight modification to the upper engine mounting plates if you wished to mount this engine in the 200GY-2, or Yamaha motorcycles.
Spud
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What about a Yamazong? Would it drop in?
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