hi pegscraperpegscraper said:Check for power at the fuses. Fuse 2 should be permanent live (+12v). Fuses 1,3 & 4 should come live via the power relay when the engine is cranked. Fuses 1 & 2 feed power to the ECU with an orange and a black/blue wire respectively. If you have power at the fuses check for power at the ECU connector. If you get no power at fuses 1,3 & 4 when the engine is cranking check the operation of the power relay and work back from there towards the rectifier/regulator and the generator.
Ruger said:It doesn't seem to me that the fault is the pulse generator if it will run for 5 seconds.
Did this happen while riding or while the bike was sitting? If while riding, was there any sort of incident that may have precipitated it? Did you do any work on the bike between the time that it ran properly and then didn't?
will look at that tomorrow and let you know how i get onRuger said:Gotta be fuel delivery. I would suspect a clogged fuel filter or the injector.
thanks this may help will look tomorrow and let you know how it goes.pegscraper said:Check for 12v across terminals 4 & 2 at the power relay connector. If you get power then the relay's bad. If no voltage it's either the regulator/rectifier or no output from the generator.
You seem to have 2 slightly different faults here. Obviously strapping out the power relay should make the bike run indefinately. Can you hear the fuel pump prime for 2-3 seconds if you stab the starter button? The bike will start and run for around 5 seconds on this initial prime but will die if the pump does not then kick in permanently. I found this when I had the failing fuel pump problem on mine.
Personally I can't see a clogged filter giving this symptom. If it can pass enough fuel to start it will keep running but worth checking especially if you have the small filter in the fuel pipe just before the injector which some people seem to have had trouble with.
Plus you've still got the EFI lamp giving a fault code for the pulse generator/crankshaft sensor.
checked terminals 4 & 2 nothing when eng turn over .pegscraper said:Check for 12v across terminals 4 & 2 at the power relay connector when the engine is cranked. If you get power then the relay's bad. If no voltage it's either the regulator/rectifier or no output from the generator.
You seem to have 2 slightly different faults here. Obviously strapping out the power relay should make the bike run indefinately. Can you hear the fuel pump prime for 2-3 seconds if you stab the starter button? The bike will start and run for around 5 seconds on this initial prime but will die if the pump does not then kick in permanently. I found this when I had the failing fuel pump problem on mine.
Personally I can't see a clogged filter giving this symptom. If it can pass enough fuel to start it will keep running but worth checking especially if you have the small filter in the fuel pipe just before the injector which some people seem to have had trouble with.
Plus you've still got the EFI lamp giving a fault code for the pulse generator/crankshaft sensor.
not getting any flash code at allpegscraper said:If you have voltage (AC) into the regulator/rectifier from the generator and nothing out (DC) then the reg/rec unit must be faulty but I still don't see how this would give the 5 second run problem. The priming of the pump when the power relay is looped out is normal behaviour. As I mentioned in my earlier post the fuel pump problem I had gave similar symptoms but only when the pump/engine was hot. It never actually gave any cold start problems so although a faulty pump is possible it's unlikely IMO.
The starting system,ie. the starter button, motor and power relay are completely seperate to the ign and fuel electrical systems.
Are you still getting the 2 flash code from the EFI light? If yes then I would test the pulse sensor. The service manual gives a value of 80-120 Ohms at 20 Deg C for the pulse sensor. I'd measure this at the ECU connector across white/yellow on pin 3 and yellow/blue on pin 9 and also make sure niether wire is shorting to ground.
EDIT.......
Just had another look at the diagram and the wire to pin 2 on the power relay from the reg/rec also feeds into the ECU. So I'm thinking.....Is the ECU shutting down the engine after 5 secs 'cos it's not seeing an ouput from the reg/rec/generator??
pegscraper said:Measure the voltage across the battery when turning the engine over and compare. The reading you get when cranking the engine with the RR unplugged must be the battery voltage. The reading from the RR with the engine running at a fast idle or above should be around 13.5-14v. The input to the RR from the generator windings will be AC and usually over 15v.
