Bike run rough when under a half tank of fuel when customer fills gas tank bike runs much better

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: 87 sportster fuel line gets air locked

The gas tank breather vent is clogged. Check around your cap and make sure the vent hose under the tank is not pinched. Your getting a vapor lock.

SOURCE: my fuel pump doesn't work

You may try www.dansrepairshopmanuals.com Theres alot of free ones there.

SOURCE: removing gas tank on harley flhtci

remove seat, remove console on top of tank, disconnect wiring from console to tank, disconnect vent line if present, disconnect fuel line on tank, disconnect fuel gauge (up under tank on left side, 3 wires, 4 wire connector, wires are yellow, orange, and black), remove bolt at rear of tank, remove two side bolts up front under tank (coil bracket is there also, carefully cut clamp on cross over hose located up front under tank.
This works better with three hands remove one side of cross over hose, fuel will flow freely so the extra hands are good at "plugging" the hose and the tank. Gently remove tank tilting front of tank as much as you can till you get it clear of the frame, while still tilted at a steep angle put the cross over hose back on.
To make things easier drain all fuel out of tank before reversing the process to reinstall tank. Hope this helps.

JP

SOURCE: High idle on start-up

Its your idle senser sits on top of the manifold u will see it looking at u when u take off air filter cover. Little black plastic.plug in.