223cc/zs165mm big bore kit above 67.7mm

stoppre12211 · 11-11-2024, 04:06 PM

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

XLsior · 11-12-2024, 10:03 AM

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.

11-11-2024, 04:06 PM	#1
stoppre12211 Join Date: Nov 2024 Posts: 4	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 Attached Thumbnails
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11-12-2024, 10:03 AM	#2
XLsior Join Date: Aug 2020 Location: Australia Posts: 1,483	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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