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Author Topic: Big bore fit  (Read 357 times)

CaptonZap

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Big bore fit
« on: August 04, 2019, 03:11:49 AM »
I need a big bore kit, but all the ones I see are for a GY6 QMB139.
The engine in my kymco is a LBD6
Does anyone know if theGY6 kit will fit without any extra machine work?
Thanks
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CaptonZap

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Re: Big bore fit
« Reply #1 on: August 18, 2019, 04:04:42 PM »
Yes, to answer my own question. The only part that didn't fit was the three bolt oil pump included with the kit.
Don't know what it is for.
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eamartin

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Re: Big bore fit
« Reply #2 on: August 19, 2019, 01:09:58 AM »
Hey, Capton!  Which BBK did you get?
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CaptonZap

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Re: Big bore fit
« Reply #3 on: August 19, 2019, 02:05:05 PM »
https://www.ebay.com/itm/100cc-Big-Bore-Performance-Cyinder-Kit-50mm-For-50cc-GY6-139QMB-Chinese-Scooter/302844123368?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

And I may be wrong about the oil pump not fitting. I didn't take the side cover off to look, I was going by the u-tube videos I saw. I may go in when I change the break in oil.
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