Bikesure_adrianflux

Non starting issue

Dave G

Dave G

Imagineer
Joined
Feb 5, 2005
Messages
1,008
Location
West Kilbride
Bike
S2r
I’m trying to get my S2R800 out of hibernation but have encountered a little problem.
Battery all charged up I get a clock sweep on turning the key but no pump priming noise, also the right indicator then flashes rapidly, and no response from the starter button.

Can anyone help with where to start looking for the issue?
 
I can only comment based on bikes I am familiar with.

E.G. my 916 which is fuel injected like the S2R on which there are a couple of relays that could cause what you're seeing: the 'main' (yellow) relay which powers everything although this should also kill the clocks? and a fuel injection relay that would stop the pump priming. There is also the starter solenoid which can fail (or the connector fall out) but this shouldn't affect the fuel pump, just the starter.

The reason I asked about immobiliser is the indicator flash that might be an indication of being immobilised?
 
Dumb but make sure there are plently of volts in the battery.
While looking for the actual cause it wouldn't hurt to clean the connecters at the ecu, clocks and fuel pump as they're prime candidates for giving problems that are freaky wierd.
Also when cleaning the clocks connecter take them off and get the bottom shell off, they can leak or get condensation in them that could easily do this kind of thing. Pop the circuit board in a bag of rice for 24 hours or fill the spaces in the case with silica gel bags and again leave it for 24 hours, LOL best not to use precooked rice or any from your local takeaway, that ought to dry it off. Give it a light spray with contact cleaner before putting it back together. The clocks are keyed to the ECU so any fault there means lots of things won't work, like fuel pump and ignition.
Even if you don't click on the indicators they can flash, if it's just the one there may be a short somewhere. Just having this happen to one indicator will have a lower resistance and it will flash alone and faster.
 
Iirc the flashing indicator is some kind of immobiliser fault so probably a good idea to get it removed.
 
The little immobilser red light on the clocks is what is used to indicate faults.
Just a single indicator flashing is more likely to be an earth problem as I remember each side runs off of a single feed switched by the clock set, kind of all or none thing.
 
Been away for a bit so haven’t looked at it until today.
I just fitted a brand new motobatt battery to eliminate that as a cause but to no avail. This time I didn’t get the clock sweep either, lights and horn don’t work, just completely dead, perhaps tellingly, the amber immobiliser light does flash as normal.
The immobiliser is the factory one in the clocks so I don’t think that can be removed, I would have expected the lights- at least the brake light to show something but alas at present its just a big lump of metal and plastic in the garage.
It has sat for a while so that may be relevant, but then again I put the same battery into my sport classic which has sat inert for a lot longer and it fired up with no issue.
I’ve rolled it to the back of the garage until I can work out the enthusiasm to hunt down the issue, in the meantime I’m just pleased I have at least one working bike, time to get that MOT’d and taxed.
 
the immobiliser (on clocks circuit board) could be removed with a bit of ecu programming.
no yellow relay on s2r, just two black ones, next to battery,. one main and one ignition, if you swap them over and it goes from not starting to nothing, ignition relay is duff.
check the immobiliser ariel in the ignition switch housing hasn't come unglued and dropped down away from key, also check for corrosion in connector.
 
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