I'm hoping someone will be able to point me in the right direction. Bike has been stood for 3 or 4 weeks, and now won't fire.
I suspected the fuel pump relay but done the usual trick of swapping and run the fuel pump off the tank and it's is definately priming.
Air filter cleaned.
Battery charged.
All fuel hoses connected securely to pump.
It does fire when I squirt easy start into the airbox, which must mean there is a spark?
The bike had been stood outside in that heavy rain and I discovered the drain inside the filler cap was blocked so originally thought there might be water in the fuel, so added 6 litres of clean fuel in.
I'm at a loss and can only think that the fuel isn't getting to the cylinders and have ruled out electrical (including clutch and sidestand switch). I've never had a problem with the bike before though there has been several instances where the starter clicks and only through rocking in gear will it then turn over, though assume this is a seperate issue.
Any help greatly appreciated.
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Had same prob with 955i, replaced fuel pump with second hand one and fixed it, did same as you to find prob, poured petrol down pots and fired and started! Could hear pump priming but guess pump not pushing out enough pressure!!
could well be pipe off but unless you drained out every last bit of fuel before throwing a jerry can in then it's still gonna be water in the fuel. if enough of it has got in the lines then it'll do in about twenty fresh batteries before it pulls an ignitable mixture.
if the bike is on the alloy fuel connectors then disconnect one connector (careful to do it straight and square as the plastic female connector will snap if you even look at it off center!!) and drain off fuel into a clear container (the fuel should drain of it's own accord) DO NOT be tempted to use the pump prime to drain the tank as you could end up on fire!!
look to see if there is obvious seperation in what you drain out (not teaching granny but the water will collect in globules at the bottom of the fuel in the container.
once you are satisfied that there is no water in your fuel reassemble the fuel lines (take care to get them in straight and don't force them) and then with the lines and connectors visible prime the system three or four times whilst inspecting for leaks.... (very important to check otherwise the bike could go up in flames)
dunno who is close to you to offer a hand but i'm sure someone will climb into the breach!!
there is a stack of info on this site and a hoard of nutcases who know how to use it ..... any problems don't be afraid to ask people .... it's better to take a bit more time gaining confidence than rush in and end up with egg (or fuel!!) on your face!!! and quite often it's something simple.... especially if the fault developed whilst stood
Remove the TOP hose fitting only (note the male hose fitting MUST be a non-valved OEM aluminum fitting, NOT original plastic or after-market valved metal fitting) - put hose/fitting end in jar; turn on ignition; fuel should pump for ~ 3 secs. (Use caution when doing this) If fuel does not pump, investigate electrical supply to pump (note that you will only get 12V across the connector for first three secs of any ignition-on cycle - turn off & on again to re-test) If electrical good, no flow, remove pump plate to investigate pump. If pump DOES flow, drain tank and replace fuel. A syphon is your best choice here.
Thanks, but still no joy and can't get the ECU to connect to the laptop now as was hoping that would tell me what was wrong. I am beginning to think it must be the fuel pump that although working is not putting enough pressure out (when bike was last running it would tick over but cut out when I tried to rev)...maybe this was the pump dying???
nope .... prolly just a badly set up bike or trying to make it do what it doesn't want to..... no bike will ever pick up off tickover fifteen seconds after cold start (not that i'm saying you do)
If you don't know how to fix it then take it to someone who does ..... seek proffessional advice because contrary to popular belief there is only a rare occurrence of the free trained forum mechanic ........ welcome btw joules!!! this place is a madhouse and the site owners take no responsibility for the comments of the mad folk within!!
tune ecu may tell you what is wrong but you have to be able to understand why.....
within these walls is more special needs folk than i have ever been institutionalised with in my life!!!
caught me at a bad time yesterday but i'd like to think all of my insults and scathing remarks are aimed somewhere between comic retort and the intended victim!!
Julian look at pin 16 on the diagnostic connector and see if you have 12 volts there with the ignition on.....
It has been known for the self sealing connector(s) on the tank to cease to function and prevent fuel from getting to the fuel rail by sticking closed. Its also worth checking you have got them pushed in correctly.
Turned out to be the hoses attached to fuel pump and fuel filter. They hadn't fallen off but collapsed internally - couldnt se this until i cut one open and it was breaking up inside so when pressure was applied it was acting as a shut off valve. Bought a length of high pressure fuel pipe from Halfords cut to length and fitted (don't worry about them not being preformed as the run doesn't kink)
