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Re-curring problem

up-high

up-high

Joined Dec 2012
14 Posts | 0+
Alberta
Hi guys. Please bear with me. I have a 2009 FE570 that is now used as a snow bike. This fall the bike started fine and was idling just like a 570. Walked away from the bike and it quit. Tried to restart and the battery(YTZ7S) got run down. Put it on the charger and forgot about it. It was swollen. Thought ok I'll hook it direct to charger and get a new one tomorrow. Hooked the charger up and a few seconds later the fuel pump and lights come on! Found out that you have to disconnect the batt from the bike to charge/tend. Weird 09 Berg voodoo thing. Also found out computer won't fire starter and fuel injector unless it gets exactly the amperage it wants. Another case of Swedish voodoo.
Put new charged batt in and bike fires right up! Problem solved. Not so fast buddy!:eek:
A friend was riding it two days ago and it quit.:furious: He rode for probably 3+ hours and was on his way back to the cabin(pinned 6th gear on the road) when the bike just died. Thought it was out of fuel so filled tank and still no joy. Checked the battery and it's at 12.5 v. The bike will run if you pour fuel down the throttle body but won't start otherwise. So assuming that the computer isn't getting what it wants again. Have a new battery on the way(just incase it was bad). Does this sound like a stator going bad?
 
start with reg rec and test it. you can test the stator output pretty easily as well.
 
How do I test the rectifier/regulator? What values am I looking for?
 
The battery at 12.5 is good as this would be perfect at 12.6. When running a little over 13 to 14 is ok. Pouring fuel into throttle body tells us it runs but has no fuel correct. First things first, We need to get the bike running and it is lacking fuel. You do not need the bike charging to have it running. The reason your bike would not turn on the fuel pump has nothing to do with amperage in the battery as the pump uses very little. The starter takes a good battery to engage it. Your battery prior was toast and you replaced.

So let me get this correct,

You have a good battery to turn the bike over but it just wont start until you dump raw fuel into throttle body correct?

My guess is the fuel pump. Test pump first. Ensure the pump is running and not heating up and failing. When you verify the pump is ok go to next step.
 
Also bike came back with the battery at 12.5 volts correct? This would tell us that it had been charging during the trip it took or it would have worn down.

Bike runs so stator and or rectifier more than likely are working, just missing fuel. signal to injector or fuel pump,,,,,,,,
 
Have had the fuel pump out several times and tested. Have replaced it with the ca pump
recommended in another thread. Have tested fuel pressure when pump is running. Held thumb over outlet hose(to injector) and pump builds good pressure(fuel sprays past thumb no matter how hard I press. Have had injector pressure tested(well within spec and smooth even spray). The battery turns on the fuel pump and starter when start button is pressed. I was told if the computer did not see the correct amperage it would send power to the fuel pump and starter but would not fire the injector. That is why it would not start when connected to the charger without a battery. The battery amperage was not what the computer was looking for.
 
Just guessing but look at compression you have to pump in air to see if it's good. Don't know the PSI you'll have look that up. Don't think it's the problem but still worth looking at.
 
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I was unaware the pump was tested, That's great it works. It seems funny as it runs when you deliver it fuel. Have you checked to see if you have 12v to fuel pump when cranking? You could have an issue with the EFI circuit. If no power, I would check schematic and power up the efi circuit with a jumper wire and see if it runs. You have checked the EFI fuse first of course?
 
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Not sure this helps, but wont hurt describing my problem.
I currently have an electrical gremlin on my 2009 FE 570 and after long its finally located to being intermittent contact in the TPS wiring.
Grabbing the main harness approx two inches back from the throttle body (right where it enters the main harness) pulling it out from the bike it starts bugging and dies, if I push it in it works alright.

Been having this on and off since last year, but now I got the FP ecu and with that brings I can see the TPS voltage while running and the software alarmed TPS value is implausible. So I started yanking the harness and sure thats it.
Likely I could just replace the bad wiring now that I know where the problem is at, but I got fed up and ordered a new harness. Good luck anyhow!
 
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Does anyone know what values I should see testing wiring on the fuel injector? It just seems like it's not firing. Going to remove from TB and push the button to see what(if anything) happens. :eek: I know the injector will fire with a 9v battery. Is that all I`m looking for, just the injector spraying fuel
 
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Remove the injector, push it back into the injector assembly and connect the fuel hose and cable to the tank. Point the injector into a bucket and press the start button. Just to be sure hold the injector in such a way so it doesn't shoot out by accident.

Then you can also see the effect by giving throttle while starting, it cuts the fuel off completely.
 
One side of injector is full power 12.5 or what have you when running. The other side will be from ecm as a signal wire that pulses ground to fire. 9v battery works fine. have a friend turn bike over and test to see 12v and on other side ground pulses. It is a good idea to use a digital test light so not to damage the ecm.

We know we have spark as it will run with raw fuel. I am guessing a bad connection somewhere.

I am not sure what color wire is the consistant 12v but if you can find that out then you can jump 12vdc from battery to that circuit and it should run.

I have heard allot about TPS issues as well so TomTom might be onto something.

Oh and yes you are looking for a spray from the fuel injector.
 
Just removed the engine cover. Is the stator bathed in oil?
Over 300 views and no one can tell me if the stator is in an oil bath?
Took the cover off and about a cup of oil ran out.
 
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Hey Up-High, I'm currently having some issues with my 2010 FE570 starting. I will have the battery fully charged but after about 5-10 starts and a few hours of riding the bike battery is complety dead. I was wondering if you had some pictures for how/Where you tested your Stator/Reg/ Or how you got to your Stator? Thanks!
 
Funny you complain that youuhave 300 views and no one can tell you if stator is oiled. You just now asked should someone have known you would ask ahead of time.
 
Sadly, I don't own a 70 degree. There's a manual posted in the manuals section of the site, you may wish to start there. It has your reg rec values and can tell you if your stator should bathe in oil. I know the 650 does not have an oil bath inside the Stator cover.
 

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