Airsal 50mm BBK

[dobbs2k]

Hello,

Just wondering if anyone has heard anything about this BBK. I'm thinking about doing this one to help keep cost down.

www.enviromoto.ecrater.com/p/9805082/airsal-50mm-aluminum-big-bore#

Also thinking about the ebay 50mm BBK.

www.ebay.com/itm/100cc-Big-Bore-Kit-139QMB-GY6-50cc-scooter-parts-gasket-/330459445932?pt=Other_Vehicle_Parts&hash=item4cf0eafaac&vxp=mtr

Any thoughts, or suggestions would be great.

[ctscooterguy]

www.ebay.com/itm/100cc-Big-Bore-Kit-Performance-Cam-Performance-CDI-GY6-50cc-139QMB-50mm-/160866272001?pt=Other_Vehicle_Parts&hash=item2574608301&vxp=mtr#ht_542wt_952

I'd go for this if you can afford it.

[skuttadawg]

The Air Sal is of way better quality than those made out of recycled pot metal . I put one on a TaoTao ATMa50 , 5 gram rollers and a 95 mainjet , airbox and stock exhaust and wow it had the power but same top end speed . Uphill and takeoff was far bettter than the " secret 63 " which two pistons cracked on me . The first was on the 2nd day just from putting in 87 a mile later poof . Even though that kit is designed to use the stock 49cc head I would get a NCY or other brand 50mm head . A larger and unrestricted exhaust along with a larger and tuneable carb would help it run better . Will take several tests of main jets so get a jet kit instead of buying 1 ata time

[nitroman666]

I have installed 3 of those 50MM big bore kits from ebay, from the same seller and all. I have never had an issue with any of them. My personal one has 190PSI 1 year and 3000+miles later. I will continue to buy them from him.