Electrics problem.....
- Thread starter Moggi
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Joined Jun 2009
50 Posts | 0+
Liverpool
For the headlight check the main plug that you disconnect to get the top fairing off,mine had melted the connection on the low beam wire and a previous owner had a done a spectacular botch jod involving a couple of inline crimps and a piece of speaker wire 
,only found this whilst removing the fairing to fix a broken digi gear indicator (still wont work :exclamation) and wondered why the fairing wouldnt part company with the bike even though i'd disconnected the plug :exclamation why the hell did Aprilia make the connectors out of butter and the pin and sockets out of high resistance tin :exclamation:exclamation
,only found this whilst removing the fairing to fix a broken digi gear indicator (still wont work :exclamation) and wondered why the fairing wouldnt part company with the bike even though i'd disconnected the plug :exclamation why the hell did Aprilia make the connectors out of butter and the pin and sockets out of high resistance tin :exclamation:exclamationYes Simon, it was the one in the middle! I found out when I was just going through them and disconnecting/checking each one. One of the four connections in the relay was being pushed out when I reconnected the 2 halves. I didn't know it was the pump relay until I turned the ignition on and the pump came back to life! :thumbup
My demons are back!!!!!!!!!!! :angry:angry:angry
Have just come back from a blast where 2 fuses had blown. After I'd replaced the first one, I'm sure the fuel pump didn't prime but the bike did start. I checked the pump relay and everything was fine this time.
I was using the bike yesterday (not in the rain!) and everything was fine. Also was using it through town today before the blast and still no probs? :dunno
Have just come back from a blast where 2 fuses had blown. After I'd replaced the first one, I'm sure the fuel pump didn't prime but the bike did start. I checked the pump relay and everything was fine this time.
I was using the bike yesterday (not in the rain!) and everything was fine. Also was using it through town today before the blast and still no probs? :dunno
Which fuse is blowing?
Tell me what the fuse is and I'll have a look on the interactive wiring diagram to see if I can point you in the right direction.
Can't promise anything mind, really hard to do remote diagnosis.
Tell me what the fuse is and I'll have a look on the interactive wiring diagram to see if I can point you in the right direction.
Can't promise anything mind, really hard to do remote diagnosis.
I'm going to suggest that either the reg/rec is buggered or that the earth wire between the rear cylinder head/frame/battery is knacked.
But my back yard mechanics mind says reg/rec
But my back yard mechanics mind says reg/rec
It's the one for the dash/horn/controls.
The horn has been intermittent so decided to check the connections and give them a clean-up and dose of WD40. One of them seemed a little loose but not so loose that it'd jump off! :roll
Joined Oct 2010
4K Posts | 0+
Pontefract
Any/all electrical connections should be like a woman should be, nice and tight :devious
After looking at the wiring diagrams in detail I would say the best place to start is at the light/indicator/horn switchgear. It's a known area of concern as water can get in and cause all kind of issues. If I was a betting man I would place my bets on this being the root cause of all your electrical woes.:thumbup
Also take a look at your horn and the connectors, water gets thrown up from the wheel and causes the terminals and the horn itself to corrode.
I had considered that it could be a faulty main earth point but you said that it blew the fuse whilst riding and you lost the dash display, if this is correct then had it been a main earth point you would have lost power to the injectors/coils etc... and the engine would have cut out.
Also take a look at your horn and the connectors, water gets thrown up from the wheel and causes the terminals and the horn itself to corrode.
I had considered that it could be a faulty main earth point but you said that it blew the fuse whilst riding and you lost the dash display, if this is correct then had it been a main earth point you would have lost power to the injectors/coils etc... and the engine would have cut out.
Well, I thought I had the problem sorted but the ***** is back! :angry
I had the bike out all day on Sat and no blown fuse, so I thought the cleaning of the horn's contacts was the problem but I took the bike out again yesterday and surprise-surprise!! :roll
I've been giving it some attention this morning and thought I MIGHT have found the problem. I noticed that a wire from the front brake pressure switch had been rubbing on the front subframe and was showing copper. So I switched the bike on and was making sure the wire and subframe were making contact, in the hope that the fuse would blow but no such luck.
I used to think the headlight was on the same fuse as the dash/horn/controls but it isn't. So why does it go out when the problem fuse blows? Also, why does the alarm arm itself? :dunno
I had the bike out all day on Sat and no blown fuse, so I thought the cleaning of the horn's contacts was the problem but I took the bike out again yesterday and surprise-surprise!! :roll
I've been giving it some attention this morning and thought I MIGHT have found the problem. I noticed that a wire from the front brake pressure switch had been rubbing on the front subframe and was showing copper. So I switched the bike on and was making sure the wire and subframe were making contact, in the hope that the fuse would blow but no such luck.
I used to think the headlight was on the same fuse as the dash/horn/controls but it isn't. So why does it go out when the problem fuse blows? Also, why does the alarm arm itself? :dunno
Would the fuse only blow if the engine was running as I did the contact thing with just the ignition on? There would still be a current going through the wire though, wouldn't there? :dunno
I wish the fuse blowing was more immediate because then I would have more of an idea what the problem is. As it is, it's just waiting for it to happen when I'm out on the bike! :angry
How could I tell if the reg was faulty? I don't understand why no fuses blew on Saturday, when I was ragging the arse off the bike? Could it have something to do with the fact that I'd fitted the race front fairing and I'd fitted the road fairing for Sunday, when I went out and the fuse blew? :dowhat
I wish the fuse blowing was more immediate because then I would have more of an idea what the problem is. As it is, it's just waiting for it to happen when I'm out on the bike! :angry
How could I tell if the reg was faulty? I don't understand why no fuses blew on Saturday, when I was ragging the arse off the bike? Could it have something to do with the fact that I'd fitted the race front fairing and I'd fitted the road fairing for Sunday, when I went out and the fuse blew? :dowhat
My point is that there could be a problem with the headlight and the connection is the only thing that has to be fiddled with when swapping fairings. If there was a problem with the headlight, shouldn't it be the headlight fuse that blows? :dunno
What do you think of the engine running/not running and the bare wire?
What do you think of the engine running/not running and the bare wire?
You wuld think so Mog but, as I'm finding out, things ain't always that logical when it comes to electrics - especially Italian ones. I'm steadily going through the loom looking for dodgy/melted sections - also noticed that the relays to the left of the clocks had pretty manky connections on the back so cleaned them up - one of those is a headlamp relay I think so it might be worth you checking them out.
I haven't paid much attention to those relays but I'm sure I've checked them before. I've been going around the bike WD40-ing connections and taping-up wiring that's been rubbing on the frame(s) :thumbup
I've just fitted a spare reg/rec I had lying around but the way things have been, I won't find out if anything has solved the problem until I get out on the road. Like I said, I wish it was just a case of knowing I had a dodgy switch with the fuse blowing when I used it but my problem just seems so erratic! :angry
I've finished fiddling with the damn thing for today as I need to get ready for work. :roll
I've just fitted a spare reg/rec I had lying around but the way things have been, I won't find out if anything has solved the problem until I get out on the road. Like I said, I wish it was just a case of knowing I had a dodgy switch with the fuse blowing when I used it but my problem just seems so erratic! :angry
I've finished fiddling with the damn thing for today as I need to get ready for work. :roll
A303
I had heard that there was a problem with wires under the seat being pulled out.
The single seat series bikes were originally designed for light weight riders, which led to problems when the slightly more 'fuller figured' riders took to the road.
In order to save money at the Aprilia factory, wires were deliberately shortened.
However, the slightly more portly riders caused excessive suspenion travel, leading to the under seat wires being pulled apart!:laugh
I had heard that there was a problem with wires under the seat being pulled out.
The single seat series bikes were originally designed for light weight riders, which led to problems when the slightly more 'fuller figured' riders took to the road.
In order to save money at the Aprilia factory, wires were deliberately shortened.
However, the slightly more portly riders caused excessive suspenion travel, leading to the under seat wires being pulled apart!:laugh
Joined Oct 2010
4K Posts | 0+
Pontefract
I think he just called you a fat barsteward Simon
I know Dave - but he's no size zero catwalk model himself
