I posted this issue awhile back and got some good info to try out. While I thank all who helped, nothing seemed to work. Magically it began to work again on its own until I managed to duplicate the same issue and same repair. Thus...
I blew the 5 amp fuse on my MPEM. Every time I put the key on the post, pop. I tried everything I could find or read about. Even went so far as to dig through the potting and find the diode that regularly dies. Tested it and it tested fine. Then it happened. I removed the ground wire from the battery and put a new fuse in. Key on the post and nothing happened! Fuse didn't blow. Read some more from the shop manual and found that the second ground wire that I had questioned as supposed to be hooked up. Hooked it back up and the fuse stayed good. Tried starting it and I had fuel, but no fire. Hell, at this point I was stoked that the damn thing would at least turn over!
It was at this point that I removed the MPEM and after some digging, I gave up on it and reinstalled it. A little hope and a prayer later, it was back in and I again tried it. This time I had fire...? Matter of fact, it ran! Took it out and had a blast for a few hours then headed back home. The next time I took it out, I was running WOT and it happened again. Both tachs froze in place and she died. This was exactly what happened the first time. Riding with it wide open and she crapped the bed on me.
This time I had it figured out! Checked the fuse and sure enough, toasted. So I took the ground off the battery, reinstalled the fuse, re-attached the ground, took the wire connector off the side of the MPEM and then re-attached it. Took a few rotations, but it fired back up. Ran it over the next two days with no issues. Seems that when I'm at full speed running WOT, something overloads and it'll blow the 5 amp fuse. Kill power and ground to it and everything comes back online. So yeah, anyone got any ideas as to what's going on?
I blew the 5 amp fuse on my MPEM. Every time I put the key on the post, pop. I tried everything I could find or read about. Even went so far as to dig through the potting and find the diode that regularly dies. Tested it and it tested fine. Then it happened. I removed the ground wire from the battery and put a new fuse in. Key on the post and nothing happened! Fuse didn't blow. Read some more from the shop manual and found that the second ground wire that I had questioned as supposed to be hooked up. Hooked it back up and the fuse stayed good. Tried starting it and I had fuel, but no fire. Hell, at this point I was stoked that the damn thing would at least turn over!
It was at this point that I removed the MPEM and after some digging, I gave up on it and reinstalled it. A little hope and a prayer later, it was back in and I again tried it. This time I had fire...? Matter of fact, it ran! Took it out and had a blast for a few hours then headed back home. The next time I took it out, I was running WOT and it happened again. Both tachs froze in place and she died. This was exactly what happened the first time. Riding with it wide open and she crapped the bed on me.
This time I had it figured out! Checked the fuse and sure enough, toasted. So I took the ground off the battery, reinstalled the fuse, re-attached the ground, took the wire connector off the side of the MPEM and then re-attached it. Took a few rotations, but it fired back up. Ran it over the next two days with no issues. Seems that when I'm at full speed running WOT, something overloads and it'll blow the 5 amp fuse. Kill power and ground to it and everything comes back online. So yeah, anyone got any ideas as to what's going on?
