could use some help please
 

Does anyone know what NGK spark plug i would use for a 50cc qmj139....at the same time i could use the spark plug gap as well as the gap for the intake and exhaust valves please

Do a search for "50cc gy6 manual", you will find more than one available to download. They will contain the info you seek......and probably be better than getting 3 different answers based on personal preference.

the gaps on intake and exhaust are .004 in .005 exhaust for your valves as for the plug .085 or thereabouts the valves i'm sure of but the plug double check.

Please take my advice....find a manual....before you screw something up.

I know that scootercapecod is trying to help, but his numbers won't.

The intake valve is .004", the exhaust is .005". The gap is .025"(and this is usually what it comes set at). The plug is NGK C7HSA

Blueboy and scootercapecod are correct. The NGK is fantastic and comes pregapped for the scoot. I was told not to try to gap irridium as it is sooo delicate it can easily break.