head light burn out on 00' sxr

javawind

New member
Joined
Feb 27, 2007
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10
Age
60
Location
Minnesota
has any one ever had an issue with your headlight burning out on a repeated basis ? you relamp and works ok, until you rev up a couple times.
can it be a voltage regulator?
 

javawind said:
has any one ever had an issue with your headlight burning out on a repeated basis ? you relamp and works ok, until you rev up a couple times.
can it be a voltage regulator?
That is what feeds it!
 
headlamp

its the voltage regulator, if you check voltage at bulb plug it should go up with rpm then drop and stay constant around 3 or 4ooo rpm
 
Ok, I follow what you are saying. the vdc should then be 12vdc +/-?? at any any rpm?
also, to replace the regulator, do I need to remove the shroud, or is it simply a matter of "fishing" it through gap?
 
voltage should be around 12.5 at idle and go up around 14.5 then drop lower when voltageregulator kicks in, i think its down by foot rest.
 
replaced the regulator and no joy, vdc at headlamp connecor is upwards of 20vdc!!
I'm giving up and going to the "pros", all does not make sense, one would think I would see other issues with remaining lights, but all ok, tail light is fine, instrument lights ok
not sure what to make of it..... possible main harness ??
 
u sure u replaced the voltage regulator and not the rectifier? also tehres a condensor up by the head light. im not sure exsacly what it does but i think it smoths out teh power up there.
 
Yes I'm sure I replaced the regulator, got the IPC p/n from Yamaha, also, I believe the condenser has more to do with ignition than for lights
 
OK, I fixed it!!, the SXR has both a Voltage Regulator & a "Rectifier-regulator", the fault ended up residing in the "Rectifier-regulator", I was on the right track, however i did not think the rectifier would be at fault, thinking it was just a rectifier.
 


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