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1100 sport problem

dimitris

Tuned and Synch'ed
Joined
Oct 28, 2008
Messages
77
Location
Thessaloniki, Macedonia, Greece
As I was riding suddenly the motorbike stopped running. A more experienced friend of mine came over, and we started checking the bike. Turning the key to ON position I could not hear the Fuel Pump.
We connected with a wire the battery with the fuel pump (+ to +) and we heard the fuel pump working. So...the problem is not the pump. The pump seems to work but if I am right No Signal is sent to the pump, after I turn the key to ON position.
1) we checked the relays. We changed position of all the relays. Nothing changed.
2) As I was pressing the kill-switch button, I could hear this sound (tic-tac) from the relays, which showed me (if I am not wrong) that the relays, and the kill-switch DO work.
3) I removed the + pole from the battery and repositioned it : No change
4) then we checked the spark plugs. NO spark to the left, nor to the right spark plug. WhY?
5) Checked the fuses. They seem right. I don't know yet if there is any problem (short circuit?) under the fusebox...

So: No signal to fuel pump,
No spark to both spark plugs.

PLEASE HELP....


Thank you
Dimitris
 
Sounds like the phase sensor problem. The way I understand it is that if this sensor is not working it prevents spark and fuel. I have heard that some bikes (maybe the 1100 Sport) have the sensor with the wires coming out at a 90 degree angle. These wires can chafe or short. With luck some have been able to fix the wiring - otherwise it needs replacing. The sensor is shimmed in place and you will want to measure the old ones 'depth' and use the shims from the original.

Just my thoughts - but worth a look.
 
With a faulty phase sensor the engine won't start (no sparks, no injection) but you would still hear the fuel pump when turning the ignition key on.
Wiring, fuses or ECU are the suspects I think.
 
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