I have a few question on 49cc GY6 engines

[abansb]

I was wondering is there a difference between the 1P39QMB and the LK139QMB or the NT139QMB 49cc engines I am not to worried about the NT139QMB it is just a parts Engine but the other 2 are running Engines

I just picked up a 2011 1P39QMB engine for really cheap and a Frame this I think was a Wildfire scooter but there is no plastic on it. Mine has a single headlight and this has a double headlight and the turn signals are separate from the body parts I can add pics if any one wants to help me it is dark here now I can add them tomorrow

Thanks

[90GTVert]

There may be differences like long and medium and short case versions or stuff like that, but the engine numbers all point to the same thing. The first 2 letters in the LK and NT might be manufacturers or something. The P just means it's a horizontal cylinder, which they all are.

[Deleted]

Nov 21, 2011 23:48:45 GMT -5 90GTVert said:

There may be differences like long and medium and short case versions or stuff like that, but the engine numbers all point to the same thing. The first 2 letters in the LK and NT might be manufacturers or something. The P just means it's a horizontal cylinder, which they all are.

yeah those prefixes are manufacturers. I dont know about NT and LK but BD1P39QMB is 47mm bore. BD=Boadiao.

[Deleted]

the point I am trying to make is that you never know what the bore really is on a 139qmb until you take the head off and measure. we see 49.5cc, 60cc and 72cc stock from these different Chinese factories.