View Full Version : sr 500 magneto diagram

07-23-2009, 9:41 PM
does anyone have a clymer wiring diagram for a 1978 sr500 magnito and voltage regulator.

07-23-2009, 10:09 PM
Thats a CDI year right ? I might have a points mag diag. let me dig it up

07-23-2009, 11:39 PM
Does this help?


07-24-2009, 9:08 AM
thanks trumpnut
eric thanks I think it has a after market mag/stator because none of the wires are the same colors as any of the wire diagrams. I have 4 whites, 1 pink, 1 tan, 1 black and 1 yellow.Im Bumed I need to get it done yesterday.

07-25-2009, 12:30 AM
Google electrosport they are out of Oceanside CA and I believe you have one of there ign. Their site has a complete installation directions for all there products

07-25-2009, 10:46 AM
thanks again Trumpnut.
I emailed them this morning,for a wire diagram.They dont give much info on the site,looks like its all plug and play.
tried to call to but not open.

07-28-2009, 10:27 PM
I tyried finding it for you but I'm in the middle of moving shops . I just poored the concrete floors of my new garage Friday . So everthing is scattered everywere !!!

07-28-2009, 10:29 PM
Silly Question it is a mag not a CDI ? if it is a mag does it have a coil under the tank ? If it does look up a DT yamaha mag wire diagrhm . if it is a CDI then all you have is the exsiter coil , pick up coil , ign coil wire and ground plus another wire that grounds to turn off the ign.

07-30-2009, 8:37 AM
A big thanks to everyone that help. I ended up ohm ing all the wire to fiqure out what was going on.At one point I had 60 volts coming out of the charging system......I sat down at Kim's house for 3 days frustrated as hell,but determined to finish before a Kim's newest deadline.It all came down to 2 grounds/black wires coming of the mag to the cdi box.They were both hooked together thinking a ground is a ground (Wronge).Once I switched the wires up and kick it over the light flickerd,I didnt say nothing to Kim I just put my hand up to get a high five.He said "the Look on your face was Priceless".