Common parts.

czowner · 10-25-2007, 02:47 AM

How many common internal components do these engines have?
I've been having a think, I can't really afford to walk away from this bike. My questions are, if I could find a second hand 200cc, (or more likley 125cc here in the UK) OHC Zongshen motor, would I be wasting my time trying to A: put the complete 5 speed gearbox assembly into my 223cc casings? or B: put my 223cc crank, barrel and head onto the 200/125 bottom end?

Jonathan.

fatboy250 · 10-25-2007, 08:59 AM

For the minimal difference in performance, why not just replace it with a stock OHC 200cc and leave it at that?

Jason

red2003 · 10-25-2007, 09:09 AM

I second Fatboys idea. I HIGHLY doubt you could mate the 223 top end with a 200 tranny. HP difference will be minimal. You will probably miss 6 speeds, but we are all getting along with just 5 so go for it.

10-25-2007, 02:47 AM	#1
czowner Join Date: Sep 2006 Location: North East England Posts: 313	Common parts. How many common internal components do these engines have? I've been having a think, I can't really afford to walk away from this bike. My questions are, if I could find a second hand 200cc, (or more likley 125cc here in the UK) OHC Zongshen motor, would I be wasting my time trying to A: put the complete 5 speed gearbox assembly into my 223cc casings? or B: put my 223cc crank, barrel and head onto the 200/125 bottom end? Jonathan.
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10-25-2007, 08:59 AM	#2
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	For the minimal difference in performance, why not just replace it with a stock OHC 200cc and leave it at that? Jason __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
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10-25-2007, 09:09 AM	#3
red2003 Join Date: Jan 2007 Location: Northern Vermont, USA Posts: 1,245	I second Fatboys idea. I HIGHLY doubt you could mate the 223 top end with a 200 tranny. HP difference will be minimal. You will probably miss 6 speeds, but we are all getting along with just 5 so go for it. __________________ First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP!
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