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Old 11-11-2024, 04:06 PM   #1
stoppre12211   stoppre12211 is offline
 
Join Date: Nov 2024
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223cc/zs165mm big bore kit above 67.7mm

hey guys.

Not sure if this is a bad solution, but I was really hoping to bore out my 223cc/zs165mm on my Vitacci Titan EFI. The only bore kit that fits the 15mm wrist pin available will go from a 65mm piston to a 67mm piston. I dont find that gain worth the effort. But I was wondering, could I use 15mmIDx16mm or 17mm to fit the larger wrist pin requirements of other cg250 big bore kit. Just raise the wrist pin OD to fit the 17mm 72mm-75mm bore kits. Let me know what you think.

I know its going to have ramifications to compression ratio and EFI flash but would this wrist pin sleeve solution even be viable. thanks.

existing 67mm bore kit
https://gstreetperformance.com/produ...dirt-bike-quad

desired bore
https://www.aliexpress.us/item/32568...yAdapt=glo2usa

example bushing/sleeve to go from 15mm wrist pin to 16mm or 17mm or 18mm
https://www.fixsupply.com/706019-iso...-mm-dia-flange
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Old 11-12-2024, 10:03 AM   #2
XLsior   XLsior is offline
 
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Join Date: Aug 2020
Location: Australia
Posts: 1,455
Dont bother


Also why have asked the same question on 4 or more different forum sections...


If your cylinder says 200cc on the side none of these kits will work.


 
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