Bike still not firing, found there is no fuel coming out of injectors. (Dont anyone ask!). Have a good spark.
I steamed it on Monday, any ideas?
I steamed it on Monday, any ideas?
No fuel at injectors
- Thread starter Rick 1600
- Start date
is the pump running
Yeah, the pump primes, forgot to say. Can it still be faulty though?
of course it can, but does the pump sound unusual, any other symptoms?
Think it sounds ok. Fuel pumps out over the deck if I undo the hose. Can it be a wire? a relay or something that got wet after steaming it? I shot some easy start down her air box and she fired up... But thats it.
It sounds like it could be the hall effect sensor
Now, I have a new one in. As of today.....but it still wont start....
ok, bikes at work so will do that tomorrow. Chances of both sides going though????
Well, ok, thanks for an honest answer...
Someone must know something out there?
Someone must know something out there?
Stewart H
Registered user
A couple of possibilities
1.If one of the rubber bits inside the fuel tank were split it could still piss petrol all over the place when an external pipe was disconnected, but would not raise pressure enough to run.
2. Fuel pressure regulator knackered, I believe you can test by clamping return line temporarily.
Stewart
1.If one of the rubber bits inside the fuel tank were split it could still piss petrol all over the place when an external pipe was disconnected, but would not raise pressure enough to run.
2. Fuel pressure regulator knackered, I believe you can test by clamping return line temporarily.
Stewart
Hey thanks. Will give it a go tomorrow
Dragon Master
Registered user
Hi Jukin,
I'll be interested to see if you find an answer to this; I have the same problem on mine, or at least I had the last time I tried to fire it up.
Pump primes OK, and primes on/off as I turn her over by hand with the back wheel, so Hall Sensor sounds OK. There's preasure in the system; if I push the needle on the injector in by hand, I get a good jet/spray of fuel. I've tried a meter on the leads to the injectors, it should pulse as the signal fires, but nothing. Not sure what sort of valtage mind, maybe my meter isn't sensitive enough (Analogue).
DON'T try a continuity test; I seem to recall reading someting on here a few day ago about the nine volts from the meter being capable of frying the motronic. Maybe a more knowledgeable member could verify/refute this? Unfortunately I read this about eight months too late to stop me doing it.
Can't try mine again for a while, it's in too much a state of dismantlement, but as I say, I'll watch this space to see if you cure yours.
Good luck,
Dave.
I'll be interested to see if you find an answer to this; I have the same problem on mine, or at least I had the last time I tried to fire it up.
Pump primes OK, and primes on/off as I turn her over by hand with the back wheel, so Hall Sensor sounds OK. There's preasure in the system; if I push the needle on the injector in by hand, I get a good jet/spray of fuel. I've tried a meter on the leads to the injectors, it should pulse as the signal fires, but nothing. Not sure what sort of valtage mind, maybe my meter isn't sensitive enough (Analogue).
DON'T try a continuity test; I seem to recall reading someting on here a few day ago about the nine volts from the meter being capable of frying the motronic. Maybe a more knowledgeable member could verify/refute this? Unfortunately I read this about eight months too late to stop me doing it.
Can't try mine again for a while, it's in too much a state of dismantlement, but as I say, I'll watch this space to see if you cure yours.
Good luck,
Dave.
I've got a similar problem so I wonder if this one was resolved.
Bike (98 1100GS) was parked in the garage and left for 6 days, and then wouldn't start. No symptoms beforehand.
Fuel pump is whirring and outputting 600mL/10secs which I think is within specification.
I've got fuel under pressure (not measured) at the injector inputs.
I've got volts going to the spark plugs as seen with my timing strobe.
There seems to be no new petrol on the spark plugs.
Three pin diagnostic plug has 0.5V on pin 1, 12V on pin 2 and 5V on pins 3. Don't see any pulsing on pin 1.
The pin 1 reading seems unusual so I've tried resetting the Motronic by pulling fuse 5 but to no effect. If the Motronic was FUBAR would I still get sparks?
Has anyone got any other ideas please?
Chris
Bike (98 1100GS) was parked in the garage and left for 6 days, and then wouldn't start. No symptoms beforehand.
Fuel pump is whirring and outputting 600mL/10secs which I think is within specification.
I've got fuel under pressure (not measured) at the injector inputs.
I've got volts going to the spark plugs as seen with my timing strobe.
There seems to be no new petrol on the spark plugs.
Three pin diagnostic plug has 0.5V on pin 1, 12V on pin 2 and 5V on pins 3. Don't see any pulsing on pin 1.
The pin 1 reading seems unusual so I've tried resetting the Motronic by pulling fuse 5 but to no effect. If the Motronic was FUBAR would I still get sparks?
Has anyone got any other ideas please?
Chris
Looks like I should be in the Hall sensor thread instead! Took the injectors off and there are puffs of petrol coming out. I'm getting pulses out of the diagnostic port (looks like I didn't earth pin 1 for long enough) and even after resetting the Motronic I'm getting Hall Sensor faults. The bike fired up yesterday but is lumpy and erratic.
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