lighting wiring

tonge · **Posted:** Wed Dec 14, 2011 8:10 pm

Hi all i have a kmx 200 and the lights keep dimming when the revs increase,i have tryed several things like earths and the regulator, iam just fed up with it,does anyone know if i could just wire the lights from a switch to the battery?as i use the bike everyday for work i dont want to be charging the battery all the time.so if anyone can help with my problem it would be most appreciated

cheers damo

rikidooos · **Posted:** Wed Dec 14, 2011 8:17 pm

Your battery is possibly not charging? :roll:

David1979 · **Joined:** Thu Feb 18, 2010 10:57 pm **Posts:** 170

sonds like something in your charging system. Have you got a multimeter?

Gooders · **Posted:** Thu Dec 15, 2011 9:51 pm

The lights are probably running off the lighting coil which is defective. You could try powering them direct from your battery but need to check it is still putting enough charge in when running. Check you have above 12 volts at the battery. If not i would get a new lighting coil.

Bushwhacker · **Posted:** Sat Jan 14, 2012 10:00 am

They will only get so bright then. At a higher RPM the regulator will do what its supposed to and protect the fuses/bulbs hence the lights dimming down. My old steel framed Yamaha WR did the same thing.

Didn't notice it when riding really only if it was stationary and I reved it. I suppose when riding the flywheel is moving which generates more energy

john479 · **Posted:** Sat Jan 14, 2012 2:33 pm

My guess is, as said before, that the battery isn't charging. This could be becuase of a faulty charging system or the battery is old and not taking in any more charge (I had this).

I think the reason that it is getting dimmer in the higher rpm's is because, as you rev higher, the ignition coil is going to need for voltage as the plug will be sparking more. This will draw more current from the battery/charging system and cause there to be less current going to the lighting loom because there is a lower overall voltage on the bike because of the battery/charging system problem.

Check to see that the voltage of the battery is right with a multimeter (they are pretty cheap if you don't have one) and there are also lots of tutorials on the internet on how to check to see if the charging system is working. I think you check the resistance between the wires coming out by the flywheel.

Hope this helps.

John

tonge · **Posted:** Wed Jan 25, 2012 7:59 pm

cheers guys for all ur help ive mananged to sort it

hut1 · **Joined:** Tue Sep 15, 2009 7:32 pm **Posts:** 231

Good that you sorted it,but what was the answer ?

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