09-12-14, 04:59 PM
Well I was supposed to be going to Nooj's in Newbury to get the annual Shiny Bike treatment, unfortunately, instead I've spent the afternoon having all sorts of fun with the bike because it wouldn't even start now, despite having been on charge all night 
Usually that's was enough to get it going, but after the first failure, I checked the voltage and it was 12.5 after one attempt at starting which then dropped down to about 7.9 on the second try!!
As mentioned, the battery has been on-load drop-tested by Vernon's in Portsmouth who confirmed it was ok.
I didn't look at the plug caps again today, but I'll maybe try them tomorrow.
Has anyone else tried removing the HT Leads from the plug caps on an FZ6 Fazer (5VX fuel injected) and can confirm if the caps can be unscrewed or whether they're a sealed unit?
I may well try doing that, but it involves draining the coolant and removing the radiator which I really don't want to try at the moment.
Thing is, though, although duff plugs would make starting it difficult, they wouldn't cause the voltage drop, would they?
Yes, I know that (as mentioned in another thread) but even after leaving it for a while, there's still a good charge.
It's ok *once* it's started, whether I can get it going with the starter or by bumping it and it charges fine now I've replaced the Regulator/ Rectifier. The issue is the sluggish turn-over and it not firing I often get when I press the starter.
As mentioned, I got good voltages out of the stator when it was running. Any more in depth checks on that is something I'm really going to have to leave to a garage!

Usually that's was enough to get it going, but after the first failure, I checked the voltage and it was 12.5 after one attempt at starting which then dropped down to about 7.9 on the second try!!
As mentioned, the battery has been on-load drop-tested by Vernon's in Portsmouth who confirmed it was ok.
(09-12-14, 06:30 AM)Andy FZS link Wrote: Mine unscrew and I'm fairly sure they all do.
I didn't look at the plug caps again today, but I'll maybe try them tomorrow.
Has anyone else tried removing the HT Leads from the plug caps on an FZ6 Fazer (5VX fuel injected) and can confirm if the caps can be unscrewed or whether they're a sealed unit?
(09-12-14, 12:00 PM)JoeRock link Wrote: If they're old, change the spark plugs for a new set. one less thing to worry about, and its a lot more likely its them than your coils!
I may well try doing that, but it involves draining the coolant and removing the radiator which I really don't want to try at the moment.
Thing is, though, although duff plugs would make starting it difficult, they wouldn't cause the voltage drop, would they?
Quote:On a secondary note, you can't test a battery for its voltage immediately after charging - they hold a surface charge which goes after a few hours, meaning if you check it originally it'll look much higher than it is
Yes, I know that (as mentioned in another thread) but even after leaving it for a while, there's still a good charge.
(09-12-14, 02:36 PM)bigralphie link Wrote: If I understand your issue , you are not getting enough current to both start and charge
It's ok *once* it's started, whether I can get it going with the starter or by bumping it and it charges fine now I've replaced the Regulator/ Rectifier. The issue is the sluggish turn-over and it not firing I often get when I press the starter.
As mentioned, I got good voltages out of the stator when it was running. Any more in depth checks on that is something I'm really going to have to leave to a garage!