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Flashing ABS and won't start.
« on: 22 April, 2018, 03:28:38 PM »
Hi folks, started bike up fine on Fri for a quick blast, left in running a good 5 mins while I suited up alongside it.
When got on bike noticed the abs light flashing, went to. Move off and it stalled, tried to restart and it would turn over but not fire.
After 3/4 attempts the battery was next to nothing...
Lucky I had only got 15ft and I just had to turn it around and wheel back into garage..

Went back to it this morning and it lit up and primed normally, but after a couple of attempts to start, the power was neverto nothing.
The abs this time didnt flash until the 2nd attempt to start.
Stator was replaced 15 months ago and battery is just under 3 yrs old.
Any pointers guys??

Offline Shed

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Re: Flashing ABS and won't start.
« Reply #1 on: 22 April, 2018, 08:33:18 PM »
ABS light doesn't go off until you hit 6mph, so for the time being I'd ignore that light altogether.

Before looking elsewhere, the battery would be my first check. It's gone flat when you turned it over a few times, then recovered enough to spin it over a couple of times in the morning, before going quickly flat again.

Charge the battery, should be at 12.5V and above when charged. 12.5V and above is 90% upwards charged. A 12V battery at 12.0V is about 50% charged. 11.5V is something like 20% charged. So if your battery, after being 'charged' can't even hold 12.5V, it's shyte and needs replacing.  :127:

Put a multimeter on the battery terminals and turn on ignition. Voltage will drop to a little over 12V while all your bits & pieces power up. Leave it like this about a minute or two before attempting to start the bike.

Turn the bike over. A healthy 12 volt battery should turn the bike over rapidly without any lag. When initially cranking the bike over, the meter should not drop below 10V - if it does your battery is toast, or at the very least on it's last legs. (Watch the meter intently when you crank over, as the low voltage readout will only be visible momentarily. If you have a min/max function on the multimeter, then great, it'll store it for you).

If need be, the battery should be good enough to spin the engine under that starting load easily for a good minute (not that the bike should ever take that long to start in any case). If the battery is struggling, it's shyte.

Hopefully, with a fully charged good battery, the bike will start. Voltage should then climb up to 13.5V - 14.5V, which will demonstrate that the battery is, or is not, receiving an appropriate charge from the stator/reg rec.

Test the battery first, before looking at the more time consuming, and more expensive, possibilities.  :028:
« Last Edit: 22 April, 2018, 08:44:20 PM by Shed »

Offline alan sh

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Re: Flashing ABS and won't start.
« Reply #2 on: 22 April, 2018, 09:10:23 PM »
ABS light should be on solid - not flashing - up till 6mph.

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Offline Ali-bear

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Re: Flashing ABS and won't start.
« Reply #3 on: 23 April, 2018, 01:35:17 PM »
Sounds a lot like battery issues. First, check the connections are tight and good.
These types of booster box are incredibly handy
Designed in Japan, assembled in Italy, fiddled with in Britain