I did an oil change on my 08 night train(stage2),after that i went to get fuel 1/2block away, rode away from pump and check engine came on then shortly after that the #6 speed light went out.....when

SOURCE: check engine light acting up

The first thing I would check is the voltage output from the charging system. If the regulator isn’t regulating, the voltage will keep climbing as the engine speed increases. The electronics in the speedometer don’t work well at these high voltages. This would also explain the bright marker lamps. You should be able to see this with a simple voltmeter across the battery terminals.

SOURCE: Bike running rough 96 Wide Glide

check plugs and wires, also coil my be weak, sometimes a bad ground will cause this also and weak battery. I've had these problems before on my older Harleys that I built

SOURCE: 2009 harley night train oil change instructions

i am not being a wiseguy, but if you buy the repair manual from harley, you'll have very easy to follow guides. the manual is $50. if that doesn't help cause of the price e-mail me and i'll walk you thru it..good luck and ride safe.

rande

SOURCE: 2001 XL1200S Cuts out and dies at highway speeds for a moment

If it was stored with fuel in the tank:

1. The fuel filter should be replaced
2. You may to replace the fuel delivery system coming out of the tank
3. Remove the plug in the carb and reset the idel mixture

I just bought one store for 6 years - my issue is the bike will n ot idel but runs on the road like a bat out hell.

SOURCE: 1999 road king wont start

Its your fuel pump if you can't hear it. And its inside your tank. Not a hard fix if you have a book that tells you how to remove it. Alot of procedures to follow to get it right. And yes it does work off a relay.