Larby
New Member
- Joined
- Jul 6, 2022
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- Guernsey, Channel Islands
Hi all,
I've just bought a FZ6N which doesn't start. I'm cracking on with diagnosing it, but having seen loads of awesome advice on here with other technical issues, I thought I'd ask too. Hopefully it may save some time!
Key on, dash all lights up etc as it should.
Fuel pump comes on for a bit when turned on as usual
Cranks over as usual, fuel pump runs while cranking. Pump is seeing a good 12v
No spark at all though.
Are there any specific conditions I can narrow down to, where it would crank and give fuel, but not allow spark?
I'm assuming that it'sgetting a good crank position, as the pump comes on during cranking.
Neutral light comes on, so I'm assuming the neutral switch is ok.
One coil is older, one is brand new. Primary and Secondary resistance is fine on both. Plugs are fine, I need to check the caps later to be sure, but I can't imagine all 4 would go down together.
It seemed one coil was wired back to front (red/black wire on the -ve), could anyone confirm the correct coil wiring?
I've checked the coil wiring with a voltmeter so far - I'm seeing 12v when sat with the ignition on.
I did note that one coil (the new one) seems to get very warm quite quickly, whereas the other coil (the old one) stays cold. Seems odd?
I'm going to start checking through the various sensors/swithces - kickstand, clutch, brake, neutral, tilt etc. Would any of these allow crank and fuel but not ignition though?
The starting circuit cut-off relay, does this cut the starter? Fuel? Ignition?
How about an immobiliser issue? The red light flashes when the key is off, but goes out once its turned on. Would it still crank and run the pump if there was an immobiliser issue?
Thanks in advance for any potential suggestions!
I have a copy of the manual and I'm working through things, but hoping someone may be able to narrow it down and save me some time!
Cheers, James
I've just bought a FZ6N which doesn't start. I'm cracking on with diagnosing it, but having seen loads of awesome advice on here with other technical issues, I thought I'd ask too. Hopefully it may save some time!
Key on, dash all lights up etc as it should.
Fuel pump comes on for a bit when turned on as usual
Cranks over as usual, fuel pump runs while cranking. Pump is seeing a good 12v
No spark at all though.
Are there any specific conditions I can narrow down to, where it would crank and give fuel, but not allow spark?
I'm assuming that it'sgetting a good crank position, as the pump comes on during cranking.
Neutral light comes on, so I'm assuming the neutral switch is ok.
One coil is older, one is brand new. Primary and Secondary resistance is fine on both. Plugs are fine, I need to check the caps later to be sure, but I can't imagine all 4 would go down together.
It seemed one coil was wired back to front (red/black wire on the -ve), could anyone confirm the correct coil wiring?
I've checked the coil wiring with a voltmeter so far - I'm seeing 12v when sat with the ignition on.
I did note that one coil (the new one) seems to get very warm quite quickly, whereas the other coil (the old one) stays cold. Seems odd?
I'm going to start checking through the various sensors/swithces - kickstand, clutch, brake, neutral, tilt etc. Would any of these allow crank and fuel but not ignition though?
The starting circuit cut-off relay, does this cut the starter? Fuel? Ignition?
How about an immobiliser issue? The red light flashes when the key is off, but goes out once its turned on. Would it still crank and run the pump if there was an immobiliser issue?
Thanks in advance for any potential suggestions!
I have a copy of the manual and I'm working through things, but hoping someone may be able to narrow it down and save me some time!
Cheers, James