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1998 R1100RT no spark no fuel?


wqbusch

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turn key fuel pump kicks on but won't start. No spark no fuel. What do you think And where do you start.

 

Morning Walt

 

If you (FOR SURE) have fuel pump run at key-on then your kill switch is "on" & your side stand switch is making contact (both are needed for fuel pump relay operation).

 

Have you recently washed the bike or ridden through heavy rain? If so then possibly an HES problem (both a spark & fuel injection depend on the HES (Hall Effect Sensor) for operation.

 

Tell us all you can about last time the bike started OK, what has been done to the bike since last time it ran OK, ANYTHING, including moving bike, washing bike, storing bike, ANYTHING!

 

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Bike was just recently torn down for clutch replacement. This happened right after that.

 

 

Morning Walt

 

Are you 100% positive it is the fuel pump that you hear run (for about 3 seconds) when you turn the key on (very important info on where we look next)

 

 

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Fuel pump is cycling on when I turn the key.

 

 

Afternoon Walt

 

Well, if you are sure the fuel pump is running then it is pointing to the HES or something HES controlled.

 

If you recently washed the bike or rode though a lot of wet conditions then probably go right to the HES.

 

If the bike has remained dry then probably look at the HES to bike harness connection, also pull the front belt cover to see

if the alternator belt has come apart & ripped up the HES wire pig tail.

 

You might also try a 20 minute fuse #5 removal to clear the Motronic as it might be locked out (don't really know how without

a GS-911 but should be eliminated). Then re-install the fuse #5 & see if it will start.

 

Could even be as complicated as a failing Motronic but if the fuel pump runs for 3 seconds at key-on the that is not real likely.

 

 

 

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It was HE'S. All is well except Speedo quit on me. Hopefully just a cable.

 

Evening wqbusch

 

It did sort of point towards the HES.

 

See your post above for spedo info.

 

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