R1150RS 2001 Fuel Pump not running.

[Hobby]

When trying to start bike fuel pump not running. Checked fuses all ok. Removed pump and tested runs ok. Checked all connections and plugs can not find the problem.

Any help 

[King Herald]

Maybe the side stand lockout switch? Bypass it to rule it out. 

[dirtrider]

4 hours ago, Hobby said:

When trying to start bike fuel pump not running. Checked fuses all ok. Removed pump and tested runs ok. Checked all connections and plugs can not find the problem.

Any help 

Morning Hobby

 

Stick a voltmeter (or 12v test light) between the green wire going into one of the fuel injectors & ground. Then turn the key to ON. 

 

Does the meter show 12v for 2 seconds (or 12v test light come on for about 2 seconds) at first key ON? If so then does the meter show 12v (or the 12v test light come on) full time during engine cranking?  

 

If neither of the above then re-check both fuse #5 & fuse #6, don't just look at them as the fuse can fail but still look OK.  Either replace the fuses or use an ohmmeter & actually test the fuse continuity. 

 

If both fuses are OK then jump the side stand circuit, on the side stand switch side of the wire  pigtail connector jump the brown wire to the red wire. Note: on the motorcycle side of the side stand connector the red wire will be brown/white (red on the switch side, brown/white on the motorcycle side).

 

If the side stand by-pass doesn't show 2 seconds of fuel pump run with key ON & full time fuel pump run during engine cranking then see if you have spark & fuel injector trigger during engine cranking. If not then you need to find out why. Could be things like failed Motronic, failed fuel pump relay, or broken wire, or missing 12v at Motronic, or missing ignition switch-ON 12v at Motronic. 

 

If you have the 2 seconds of pump run at key ON but no fuel pump while cranking then possibly an HES (ignition sensor) issue. 

 

Have you recently done any work on  that motorcycle? Like belt replacement or other work? If so let us know as some types work can effect things that effect engine starting. 

 

 

[Michaelr11]

4 hours ago, Hobby said:

When trying to start bike fuel pump not running. Checked fuses all ok. Removed pump and tested runs ok. Checked all connections and plugs can not find the problem.

Any help 

 

You checked the fuse, but did you check the fuel pump relay?

 

When you turn the ignition key on, does the fuel pump run for 1-2 seconds?  You should be able to hear it.