Smemsic 19 #1 Posted September 12, 2017 One of my 520's is not putting out enough voltage and usualy is only showing to the low side. Other day it started to spike up into the normal side.............very confused Share this post Link to post Share on other sites
WHX?? 46,690 #2 Posted September 12, 2017 Assuming you have a multimeter check the voltage on the two outside terminals of the regulator. Should have 30-40 volts AC with the engine running at mid to wide open. If that checks out check the middle terminal of same reg. to ground, should have 13-14 volts DC with same rpm settings. Also check the ground/battery connections. Of course as always check the 9 pin and fuse block for those known issues. That spiking may be caused by intermittent bad connection at the 9 pin or fuse block. 4 Share this post Link to post Share on other sites
roadapples 6,981 #3 Posted September 12, 2017 Mine is doing the same thing. Wiggle the 15 amp fuse and it works... 1 Share this post Link to post Share on other sites
WHX?? 46,690 #4 Posted September 12, 2017 416 did the same thing Jay... fuse block had just started to melt but got it in time. Managed to get the connectors out, cleaned up and moved to an unused slot. More than one pic has been shown with a blade of a fuse melted away! 3 1 1 Share this post Link to post Share on other sites
squonk 38,844 #5 Posted September 12, 2017 I removed the charging circuit out of that fues block and put in a "real " sealed HD fuse holder. 5 Share this post Link to post Share on other sites
WHX?? 46,690 #6 Posted September 12, 2017 36 minutes ago, squonk said: removed the charging circuit out of that fues block Not the worst idea to do that with the 9 pin too! 2 Share this post Link to post Share on other sites
squonk 38,844 #7 Posted September 12, 2017 2 hours ago, WHX12 said: Not the worst idea to do that with the 9 pin too! Took the entire 9 pin out and moved most of the harness to the other side away from the muffler. I need to get a chunk of tin to make an extra heat sheild to keep the heat away from the harness where the original fuse block sat. 3 1 Share this post Link to post Share on other sites
JPWH 5,295 #8 Posted September 13, 2017 Aluminum roof flashing makes a good heat shield. 5 Share this post Link to post Share on other sites
squonk 38,844 #9 Posted September 13, 2017 8 hours ago, JPWH said: Aluminum roof flashing makes a good heat shield. I looked all over and can't find anything. May have to set a ladder against the neighbor's roof! 2 Share this post Link to post Share on other sites
953 nut 51,507 #10 Posted September 13, 2017 With any electrical problem the first step is to clean and tighten ALL electrical connections including grounds, this will cure ninety percent of them. 1 1 Share this post Link to post Share on other sites
Smemsic 19 #11 Posted September 14, 2017 On 9/12/2017 at 10:17 AM, Smemsic said: One of my 520's is not putting out enough voltage and usualy is only showing to the low side. Other day it started to spike up into the normal side.............very confused Thanks for all the tips Share this post Link to post Share on other sites