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Author Topic: Starting issues  (Read 246 times)

Magnusy

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Starting issues
« on: July 17, 2018, 08:19:28 PM »

Hello again,

Recently I had 2 occasions where my bike failed to start. I put the key in,turn it, the pumps and everything went on (they made that "HUMMMM-ing" noise, but when I press the button, the engine in not cranking but making the same "HUMMM" as long as I hold the button. I think that's the sound of the fuel pump but I'm not sure.

The issue is solved by removing the key a few times and moving the bike on neutral a little (or maybe is a placebo). Sometimes it starts just by tapping the button a few more times.

Anyone encountered this?

Thanks!
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AJC650

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Re: Starting issues
« Reply #1 on: July 18, 2018, 10:36:54 AM »

Are the instruments showing? or does it say 'che' (check) which suggests an electrical fault, like say the side stand switch.

Might be related to the starter or sprag clutch (if moving the bike a bit 'releases something') or the big red button - someone recently had that button fail......do you use that to switch the bike off?  Some say you shouldn't use it except in emergency, so just stop the bike with the key.

Alternatively if just pushing the starter button a few times makes it eventually turn over, could the starter button have a fault?

If it starts eventually, hopefully it's not too hard to fix..... ???
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Magnusy

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Re: Starting issues
« Reply #2 on: July 18, 2018, 02:32:10 PM »

Hello,

As an update, today it happened again. It took 10 second of tapping the starting button to make the bike start.

I never turn it off using the emergency button.

While riding it, the FI light came on and off multiple times but the bike was running OK.

I listened the bike while trying to crank it and indeed, under the tail i could've hear a clicking sound when the "HUMM-ing" sound was made by the bike.

I was thinking it could be the battery at fault. What do you think?

Thanks!
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umop-ǝpisdn

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Re: Starting issues
« Reply #3 on: July 19, 2018, 02:45:45 AM »

Could it be the spark shorting to ground?

Loose plug cap? Bad spark plug? Maybe a damaged high voltage lead?
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Magnusy

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Re: Starting issues
« Reply #4 on: July 19, 2018, 04:02:19 PM »

Hey,

Spark plugs are new.

The coils I think are ok as the mechanic checked them when he changed the plugs.

Thanks!
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spit051261

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Re: Starting issues
« Reply #5 on: July 20, 2018, 11:10:03 AM »

Starter button fault
To see what code you get whilst riding run a 2 core cable from the ECU plug to a switch on handle bars and switch it when you get the fault. It will then display fault.
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AJC650

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Re: Starting issues
« Reply #6 on: July 20, 2018, 11:12:31 AM »

I think you have another post about fuel smell - could one plug not be firing and leaving unburned fuel to be sent out the exhaust?  Would that suggest a bad plug, cap or coil?

Check the voltage at your battery - the 650 has a charging/rectifier problem which is well documented, including an easy cure, not sure about the 250's, but a voltage check would maybe help see if the battery is not holding/getting enough charge.....
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spit051261

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Re: Starting issues
« Reply #7 on: July 20, 2018, 11:50:48 AM »

I had the same thing with the FI light that turned out to be gear position sender.
No big deal but I changed it when I did the gear display mod and fault gone.
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Galacticaone

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Re: Starting issues
« Reply #8 on: August 04, 2018, 01:20:33 AM »

Hello
If you press the starter button and the starter does not engage, you have a problem with the starter selenoid.  If it is not the starter solenoid, there are a couple of sensors that will prevent the starter from engaging.  You have to check all the possibilities, from the switch to the ecu, the various safety cutouts and the solenoid.
Martin
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spit051261

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Re: Starting issues
« Reply #9 on: August 04, 2018, 01:48:59 AM »

Hello
If you press the starter button and the starter does not engage, you have a problem with the starter selenoid.  If it is not the starter solenoid, there are a couple of sensors that will prevent the starter from engaging.  You have to check all the possibilities, from the switch to the ecu, the various safety cutouts and the solenoid.
Martin
Not really Martin .
Could be the start switch which sounds more likely .
A tip on fault finding....always start with the basic stuff before diving into complicated ECU / sensor problems etc . because 9 times out of 10 , that is what it will normally be .
As far as his FI light , it is likely the Gear Position Sensor playing up .
« Last Edit: August 04, 2018, 01:59:39 AM by spit051261 »
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