GY6 Big Bore Kit, where to find?

stevef22 · 04-11-2016, 08:55 AM

What is the best big bore kit for 150CC Gy6 engine?

I see so many on ebay and Im confused.

Do you know anywhere online that sells complete engines ready to go with bore kit and upgrades?

Thanks!

bull · 04-11-2016, 01:35 PM

I can't tell you about ebay vendors, but the wholesalers that I use have mostly Taiwan made kits.

just bought my first two 2 stroke 72cc kits, Kymco unit came from Taiwan, the TNG unit from GY6 store.

All the 139qmb BBKs are from Taiwan- have checked vs China and they are very similar, but the Chinese units weigh a little less-- totellit youneed a very accurate weigh scale.

If you want a prebuilt drop in, why not get yourself a 150cc core unit, BBK the engine,bench tune the cvt, change the fluids, and then swap it out. You'll know what is in it and what it should do.

cheapeto · 04-12-2016, 06:48 AM

http://www.partsforscooters.com/ maybe.

rep@drowsports · 04-26-2016, 07:16 PM

check out our website for all gy6 150cc big bore kits

http://www.drowsports.com/taida-gy6-...-54mm-spacing/

04-11-2016, 01:35 PM	#2
bull Join Date: Feb 2015 Posts: 257	I can't tell you about ebay vendors, but the wholesalers that I use have mostly Taiwan made kits. just bought my first two 2 stroke 72cc kits, Kymco unit came from Taiwan, the TNG unit from GY6 store. All the 139qmb BBKs are from Taiwan- have checked vs China and they are very similar, but the Chinese units weigh a little less-- totellit youneed a very accurate weigh scale. If you want a prebuilt drop in, why not get yourself a 150cc core unit, BBK the engine,bench tune the cvt, change the fluids, and then swap it out. You'll know what is in it and what it should do.
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04-26-2016, 07:16 PM	#4
rep@drowsports Join Date: Apr 2016 Posts: 3	check out our website for all gy6 150cc big bore kits http://www.drowsports.com/taida-gy6-...-54mm-spacing/
	0