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General => Technical | How To => Topic started by: CaptonZap on August 04, 2019, 03:11:49 AM

Title: Big bore fit
Post by: CaptonZap 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

Title: Re: Big bore fit
Post by: CaptonZap 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.

Title: Re: Big bore fit
Post by: eamartin on August 19, 2019, 01:09:58 AM

Hey, Capton!  Which BBK did you get?

Title: Re: Big bore fit
Post by: CaptonZap 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 (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.