..have a vulcan good day!
Join Date: May 2011
Location: Pensacola, FL.
NiteRider: Just for a test. You can run a wire direct to the coil from the + side of the bat and see if the bike starts and run good.
Dariv: You have a broken wire or bad splice/connection. The power to the coils comes from the battery, not the ignitor. I would suggest you do the coil mod found here in the forum.
NiteRider, Tried that, could not keep it running at idle, would not take any throttle at all.
Dariv: When measure terminal voltage @ coil terminals: (battery @ 12.4 V) Front coil: Solid 11.6 V Rear coil: 10.1 V which drops to 5.6 V within 8-10 seconds. By my Schematic rear coil receives its ground from the igniter. Checked ground to Igniter via plug...all is perfect.
Q: Seems to me the Igniter is providing a bad ground to rear coil (from within the igniter). Only front cylinder is firing, when I ran direct battery to coil, rear cylinder had some spark (appeared weak) wanted to run with starter, would not take any throttle.
u all been a great help thus far, but problem still exists...
'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
Last edited by WilliamTech; 12-10-2012 at 08:35 AM.