QT50 INTERMITTENT SPARK

jason anderson /

QT50 started right up drove around the block and it died tried to start it and it will not. The spark seams low and sometimes not at all. Any Ideas. I cleaned wire connections. If I spray brake cleaner on the spark plug it has a good spark. weird . any HELP would be cool

Re: QT50 INTERMITTENT SPARK

go buy three new spark plugs

Re: QT50 INTERMITTENT SPARK

jason anderson /

why buy 3 I cant seam to even find 1 original. checked all stores around

bm4a

Re: QT50 INTERMITTENT SPARK

> jason anderson Wrote:

> -------------------------------------------------------

> why buy 3 I cant seam to even find 1 original. checked all stores around

>

> bm4a

Maybe you're not looking in the right places :

http://www.sparkplug-crossreference.com/convert/NGK_PN/BM4A

Re: QT50 INTERMITTENT SPARK

jason anderson /

not INTERMITTENT now the spark is just very low. I tried a new coil same thing. but can't find a new spark plug the correct size

Re: QT50 INTERMITTENT SPARK

Jack Rutherford /

Charge coil (not the ignition coil) is a common problem with qt50s resulting in low spark/intermittent spark. You can replace it with a pw50 charge coil off a pw50 stator (which is like $17 on amazon or eBay). Search pasts posts and you will find this information.

Re: QT50 INTERMITTENT SPARK

jason anderson /

ok thanks jack I ordered the pw stator. so do I just flip it for the qt and solder

Re: QT50 INTERMITTENT SPARK

jason anderson /

I did run it without the battery. Is it ok to run it without the battery

Re: QT50 INTERMITTENT SPARK

Jack Rutherford /

not ok to run without battery because you may blow your headlight and tail light. Flip the pw stator and then solder just like the original. There's a picture somewhere - click that

Re: QT50 INTERMITTENT SPARK

jason anderson /

I don't have headlight or tail light. I was wondering if it will blow the charge coil. I think I read somewhere that the battery protects the coil. It did start up and run fine for 10 minutes. when I first tried.

Re: QT50 INTERMITTENT SPARK

Jack Rutherford /

batteries are so damn cheap, I wouldn't risk it. Of course, charge coils are pretty cheap too but a bit harder to replace.

Re: QT50 INTERMITTENT SPARK

jason anderson /

It's not the price the wires are missing

Re: QT50 INTERMITTENT SPARK

jason anderson /

ok maybe the wires are there. Any idea which wire goes to the positive side of the battery connect to?

Re: QT50 INTERMITTENT SPARK

jason anderson /

got the pw charge coil flipped it and it works good thanks jack

Re: QT50 INTERMITTENT SPARK

Jack Rutherford /

Sweet, just make sure that ground is connected just like the original or it'll go bad on you.

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