After about 4 weeks of no use battery was low & cranking very slow & wouldn't fire. Charged battery & turns over now but still won't start - FI warning light comes on after 5-6 secs. Checked plugs & no spark. All fuses Ok & i can't see anything loose in the wiring. Was running fine last time out
I have encountered this problem on 3 different occasions. I have had to pull the fuel pump, carefully disassemble the entire thing, using an air hose to clean it out, only to reassemble and reinstall it...tho frustrating and very time consuming, the settlement thats in gas can clog the fuel filter inside the pump causing a major inconvenience. Also when you dismantle your bike take an extra hour and some carburator cleaner and clean out your throttle bodies and fuel lines...90% of FI problems are fuel pump related
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Any time you have a starting problem start with the simplest and work your way back. Battery-fire-fuel. ensure the battery is fully charged, if it still doesn't start check to see if it has fire getting one of the little spark test lights is easiest, but if not, a screwdriver in the end of the spark wire and hold screwdriver about 1/4 inch from a grounded source and turn over if you see spark try with all. If no spark, problem is before plugs. A good practice is to unplug all harnesses and check for corrosion, spray with contact cleaner, then anti-corrosion spray and reconnect. If you have spark check fuel. Spray starting fluid in carbs as you crank. Next would be pulse generator, etc.
Put it in neutral and pull the clutch in. Kickstand up and Killswitch in
the normal position. Turning the key off and back on will reset the FI
Light. Make sure that battery is fully charged first. Low voltage might
not fire the injectors. Let us know how it goes.
Lets see is it fuel or spark? Pull a plug wire remove plug. Now clean plug with clean wire bush. Now put wire back on plug ground to engine crank and see if you have spark. So you have spark it is now time to check fuel. Start by removing hose from petcock on tank and see if fuel comes out you could have a bad vale / switch got fuel. Remove air cleaner and give carb a shot of starting fluid see if it starts now.
Yes occasionally a battery can put out enough cold crank amps to spin the starter and motor, but in doing so drags the voltage down so the electronic ignition wont fire.
a couple of warnings
If you check for spark make certain there is a plug in the lead and it is grounded to the engine, if not the voltage builds up in the coils until it can spark to something.
dont jump it of a bigger car battery, when the bike starts it can try to produce more amps than its supposed to to try and charge the car battery and stuff the reg.
If cranking is slow it could be a sign of a 'near to dead' battery.
When cranking on its battery there is a too low voltage and weak or no sparking.
When jump starting or pushing the bike, there is a good spark and the engines fires up.
Check also the spark plugs! And carburettors cleaniness