Random sparking from spark plug

Really you should believe al on this one sdCruizer.I had a 6 volt headlight just what the white wire is design for and it draws to much and engine would not run!!! You should cap it off,and not use it.
 
I had a problem similar to yours. Disconnect the kill sw and give it a try.
Some times it can ark thru the kill sw itself. Sometimes a kill sw cable can get pinched with a ty-rap or get chafed. Either of those can cause your exact problem.

If thats not it it might be something else(LOL).

Jim
 
Really you should believe al on this one sdCruizer.I had a 6 volt headlight just what the white wire is design for and it draws to much and engine would not run!!! You should cap it off,and not use it.

if you understand how a switch works the white wire is not being used at all until I press in the switch to kill the engine
 
if you understand how a switch works the white wire is not being used at all until I press in the switch to kill the engine

cut the white wire off...do not use it.
All the white wire does is create an electrical problem if ANYTHING is hooked to it, that will have you chasing ghosts (just as you are now).
 
cut the white wire off...do not use it.
All the white wire does is create an electrical problem if ANYTHING is hooked to it, that will have you chasing ghosts (just as you are now).


sorry im not chasing any ghosts at all
everything has been running beautifully since I built it

again, if you know how a switch works nothing negative can happen unless the switch fails and grounds out to the frame or there is a short in the sheath of the wire and it grounds out.
If I ever run into intermittent stalling issues I will look at the wire and the switch
 
ok, here's a little senario for you then.
When i built my first m.b. i hooked a headlight up to the white wire.
the engine ran good and the headlight worked for about a month.
and then all of the sudden my engine wouldn't run anymore and I had spark / electrical issues.
I chased this problem for a few days until i decided to cut the white wire off the headlight to take it out of the equation.
guess what, the engine started right up and has ran fine ever since.
I tried to hook the headlight back up to the white wire with the engine running, and as soon as i would touch the headlight wire to the white wire, the engine would die.
I always cut the white wire off, and cap the end of it on every bike i build with a china 2 stroke now.
you don't need to hook the white wire to the kill switch either.
 
could the light be burnt out in the socket causing a ground?
Or just bad wiring in the light
Just like you say if you touch it to the light and the engine dies its the same as me touching the white to the frame and my engine dies, its grounding out and shutting off.
Check the light I bet its shorting out somewhere

Ive been doing electrical work for 17 years now, I have no issues with wiring, running wire, connecting wire low voltage and high voltage

Plus I have no instructions that came with my engine, they seller I got them from has instructions on his website
Are they correct I have no idea but he builds these bikes and sells them, is really knowledgeable with them. So far everything has worked.
 
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