Whats going on here??(Fixed and with piccys)

[paddlesat16]

Bike is Aprilia Pegaso 650cc

Symptons:

Bike starts fine, on choke. Then it starts to miss as if one of its cylinders isn't firing(like on a twin cyl) or like it's firing at intermittant strokes. But if I turn on the lights it idles correctly(on choke still and warming) and revs etc but turn off the lights and it's back too missing?? Once fully warm it goes away.

it's a big single and wasn't lumpy at all, idled correctly and ran fine.

This started last week after the last lot of snow, though the bike has been covered, ran and commuted.

Any ideas, cheers
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I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[Timmeh]

It's italian, ergo the wiring loom will be shot, so you're going to have to get the multimeter out and start prodding things.

Your best bet is looking around the coils first as something is clearly grounding them out.
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GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[Copycat73]

possibly damp gettin in ..check condition of multi block connectors & wd-40 anything electrical,under seat,fuel tank & pannels etc... wouldn`t hurt to put a volt meter across the battery terminals and switch the lights on & off with the engine running see what readings you get ?
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Whatever I post I have no citation and no intention of providing one..
caveat emptor

[paddlesat16]

Was afraid somebody would say that, electrickery isn't my best subject

cheers
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[Copycat73]

[temeluchus]

Hose the electrics down with WD40.
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Some shite cruiser. Now with guns and FREEDOM!

[Ariel Badger]

Pull every connector off and drown in WD40. Italian electricity is a very delicate thing.
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Bikers make great organ donors, get 115 on your licence today.

[paddlesat16]

so I got the tester out and working from the workshop manual:

My recharge voltage at 5000rpm is 17.49v it should be between 13-15v

Alternator output at 5000rpm is 78v, anything over 70 is good below 70 is bad

Alternator continuity is good

Voltage regulator failed miserably on tests looks like my reg-rec has died; some terminals not showing any resistance at all.

So what I think is happening is there is too much voltage to the coil, with the lights on it goes within resistance tolerances hence the normal running with the lights on.

Always happens when your skint as well.

I will test the coil tomorrow for its values as i've gotta take of the tank and half the panels just to see the coil
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[katana]

Don't use wd40 on electrics, it will just make it sticky. It is an oil. It will attract dirt. Use electrical contact cleaner, its what it was designed for.

Check for water in the fuel, give the spark plug a check too and see the colour of the plug. Make sure that the plug lead is on properly and not wet.

[katana]

https://www.electrosport.com/media/pdf/fault-finding-diagram.pdf

is your friend

[mysterious_rider]

doesn't sound like a 'must fix now' kinda thing. Just run the bike with it's lights on? Then fix when you can afford.
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KAWASAKIIIII

[paddlesat16]

Might just use the cage and accidently purchase a new reg rec

Being as the weather is fookin freezing at the mo and I definately need a new one also my commute is stupidly long 50 miles a day. Don't wanna breakdown

Beans on toast for the next week
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[paddlesat16]

[katana]

[paddlesat16]

I noticed the battery bubbling like mad don't think this is normal but can't be sure. But it can't be doing it any good getting 17.5 volts.

So I think it's the cage till I get a new reg.

Regards
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[mysterious_rider]

[BigGeeking]

[paddlesat16]

I have purchased the new reg rec

Hopefully this baby will sort my woes

Many thanks to all

https://www.electrexworld.co.uk/cgi-bin/sh000001.pl?REFPAGE=http%3a%2f%2fwww%2eelectrexworld%2eco%2euk%2facatalog%2fOnline_Catalogue_Regulator_Rectifier_206%2ehtml&WD=650%20aprilia%20pegaso&PN=RR71%2ehtml%23aRR71#aRR71
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I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[paddlesat16]

The new reg rec appeared next day, result

https://i245.photobucket.com/albums/gg75/paddlesat16/20130227_125212_zps058bdfd2.jpg

And a couple of hours messing about with a soldering iron, heat shrink and crimpers saw the reg/rec fitted

https://i245.photobucket.com/albums/gg75/paddlesat16/20130227_154700_zpsbccba09f.jpg

Returns a healthy 14.5v and doesn't get hot at all just mildly warm. The battery has stopped bubbling like a witches cauldren

Pics of the old and decrepid reg/reg/wiring showing lots of heat damage and burning. Was a fire waiting to happen

https://i245.photobucket.com/albums/gg75/paddlesat16/20130302_155211_zpsd64ab883.jpg

https://i245.photobucket.com/albums/gg75/paddlesat16/20130302_155231_zps85e930f9.jpg

https://i245.photobucket.com/albums/gg75/paddlesat16/20130302_155252_zpsb1875403.jpg
____________________
I once saw a bloke shagging a donkey.... in Saudi arabia. Theory Test Passed 26/10/09 Mod 1 Passed 26/4/10, Mod 2 Passed 7/6/10 Current Bikes Suzuki GSX1400 K5, Aprillia Pegaso 650, Suzuki DR350T.

[Timmeh]

that's some BBQ wiring right there, glad you got it sorted!
____________________
GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you