turbodan
New Member
Just bought this bike yesterday to replace one I parted ways with several years ago. While riding it home I had the CEL flashing while riding over rough pavement. Engine would cut out briefly and pick back up. I figured this was a wiring issue so I started looking around. The code stored was #46, irregular voltage supply or something along those lines.
While troubleshooting this at one point the bike shut down and would not restart, then while trying to restart the starter relay stuck and despite hitting the kill switch and removing the ignition key it continued to crank. I had some tools nearby so I was able to lift the tank and remove a cable from the battery before the starter burned up. No harm done I hope, though I do have a spare starter still from the last time I owned one of these.
As it turns out the problem was a loose fit in the four pin connector that plugs into the starter relay. I think the previous owner installed a piece of garbage aftermarket relay, perhaps a $7 ebay item, and the spade pins on it are thinner than the original part. Either that or somebody stuck a screwdriver in there and sabotaged it for me. For now I was able to pinch the female terminals in the connector down to get a better bite and the bike is running properly again. I have a new Yamaha relay on the way, especially in light of the starter getting stuck on the way it did. If I didn't have tools on hand that would have been much worse.
That whole thing was strange enough I had to post it. From what research I did it seems that code 46 is usually caused by a weak battery. The service manual recommends to also check the pins at the EFI/ignition module. It also says this code can be caused by an open in the wiring and that's pretty much what I had. Thanks to the previous owner for being a cheap hack.
While troubleshooting this at one point the bike shut down and would not restart, then while trying to restart the starter relay stuck and despite hitting the kill switch and removing the ignition key it continued to crank. I had some tools nearby so I was able to lift the tank and remove a cable from the battery before the starter burned up. No harm done I hope, though I do have a spare starter still from the last time I owned one of these.
As it turns out the problem was a loose fit in the four pin connector that plugs into the starter relay. I think the previous owner installed a piece of garbage aftermarket relay, perhaps a $7 ebay item, and the spade pins on it are thinner than the original part. Either that or somebody stuck a screwdriver in there and sabotaged it for me. For now I was able to pinch the female terminals in the connector down to get a better bite and the bike is running properly again. I have a new Yamaha relay on the way, especially in light of the starter getting stuck on the way it did. If I didn't have tools on hand that would have been much worse.
That whole thing was strange enough I had to post it. From what research I did it seems that code 46 is usually caused by a weak battery. The service manual recommends to also check the pins at the EFI/ignition module. It also says this code can be caused by an open in the wiring and that's pretty much what I had. Thanks to the previous owner for being a cheap hack.
