What are you working on? Fuses, Kill switch, ignition switch?
+1 on this to begin your troubleshooting. The bank angle sensor is also suspect. There was a recall here in the US on 88-93 models to replace this component. I wouldn't assume other countries did the same. It's located under the right front side of the trunk...you can get to it simply by removing the seat.The 88 and 89 model is different, jumpering at the ECU will not make the fuel pump run. There is a fuel relay under the trunk. First check for power at the blk/wht wire at the ECU, if no power it could be the kill switch then fuses #2,8 & 11, or relays #3 & 8.
...Pulled the kill switch apart power on both sides...QUOTE]
Verify that the Screws, to the kill switch, are tight... I know you checked both sides, however I've seen the screws appear to be fully-installed, yet actually loose and not making a connection.
Also, try by passing the other kill switch that's attached to the kickstand.
But he says that there's No Spark... That is not explained by a petcock problem, although can't hurt to check that too (in case the no-spark-condition is in error)I think you're all wrong. This sounds like a petcock failure. The valve cannot hold a vacuum, thus not opening & not allowing the fuel to flow. Check it first & I'll bet cha it's the problem....-Rich
Now that is exactly how it should be on ALL of the 1500s.On my 88 the fuel pump runs for about 4 seconds at ignition on and shuts off unless the engine is cranking. Sounds like a break in power to the ecm or a bad ecm to me.