I am compiling information on the BD1P39QMB

[chaselovell]

I am compiling some information on the 50cc BD1P39QMB in order to create a page using my limited programming knowledge that will help to troubleshoot common issues with this particular engine. I have had some difficulties finding the proper information on this model in the past. I need an owners manual for the Baodiao Gator 50-M Max bike as well. If anyone can point me in the right direction I would be forever grateful! If you have any knowledge on how I might write the program I wouldn't mind the input. 

[aeroxbud]

This guy seems to think they are 60cc.

[90GTVert]

There are service manuals for 139QMBs here :
www.49ccscoot.com/manuals/manuals.html

Jan 6, 2022 6:45:25 GMT -5 aeroxbud said:

This guy seems to think they are 60cc.

It is proven that the P does not mean it's a larger bore. Some are, most aren't. A lot of it seems to be just how the manufacturer decided to label it. The P officially designates a horizontal engine, but for whatever reason manufacturers find that to be an optional part of engine numbers.