Moto Guzzi electrics?

[MotoKuzzi]

Ok I'm over the sump bolt blooper on my '97 California and now delving in to why my RH plug is fouling. I had the lead tested and it came up good but when I run it with the plug out so I could see the spark it didn't look strong and actually stopped sparking for a second or so every now and then. I decided to remove the LH plug and run it on RH cylinder for a comparison of the spark and the LH side looked more regular but the motor wouldn't run at idle on the RH side for more than a few beats suggesting it's definitely weaker. I'm suspecting RH coil is at fault. Any one got any other suggestions? Should the spark across the plug gap be blueish?, 'cause it was more yellowish both sides I thought.

[Paul in NZ]

Erm...

a 97? Points or electronic ignition?

[MotoKuzzi]

Erm...

a 97? Points or electronic ignition?

EFI, must be one of the early ones.

[hmmmnz]

well the first thing to do is swap the coils over and see if that improves the spark, bear in mind just because a plug sparks out of the engine it doesnt mean it will under compression,.

if it still sparks irregularly using the left hand coil on the right sides wiring,
then the next thing is the pick up coils, and if they check out, then the only thing left is the ecu

but check back after changing the coils over

[awayatc]

swap coils as suggested,
look at wiring-especialy earth....
bad earth on the coil ( rust)

[Paul in NZ]

Also - check the ignition trigger on the crank. They can get dirty.

[MotoKuzzi]

Thanks for the suggestions. I'm probably getting to the limit of my competence in this area but will swap coils and check the earths and ignition trigger whatever that is and see how i get on. Hope like hell it's not the ECU, but knowing my luck it will eventually lead back to that.

[MotoKuzzi]

Dont mind me !
http://www.kiwibiker.co.nz/forums/sh...ad.php?t=94147

l'm still an optimist at this point.

[TripleZee Dyno]

Thanks for the suggestions. I'm probably getting to the limit of my competence in this area but will swap coils and check the earths and ignition trigger whatever that is and see how i get on. Hope like hell it's not the ECU, but knowing my luck it will eventually lead back to that.

Hi
Unlikely to be ECU but if it is give us a yell and we might be able to sort something out for you. if the bike is on the road bring it in, I have a spark "tester" which will tell us if its a coil/driver problem
cheers

[MotoKuzzi]

Hi
Unlikely to be ECU but if it is give us a yell and we might be able to sort something out for you. if the bike is on the road bring it in, I have a spark "tester" which will tell us if its a coil/driver problem
cheers

Thanks TZ might just do that, I'm in a bit of a black hole area for me knowledge wise. I work just down the road from you so could drop in after work bout 2.30 ish

[Paul in NZ]

Erm....

If you get stuck - ask for directions here..

http://www.guzzitech.com/

I had a quick scan of Guzziology. You probably have a motoplat ignition (known as the motosplat)

Check the pickup to reductor gap. If you don't have this 'right' you can get these weird harold symptoms. Also, the pickups are magnetic so tend to pick up all kindsa shit.

Early injected models have a pickup mounted in the engine case behind the r/h cylinder that senses 'bumps' on the flywheel. All model have a pickup over the cam/timng-shaft gear/sprocket.

Sometimes a bit of loose ferrous shite from the ring gear will stick to the pickup located under the r/h injector. Simply pull out the injector and clean it off...

Honestly, spend a few bucks on a copy of Guzziology.

[MotoKuzzi]

Cheers for that. Didn't realise this was going to get so complicated.

[Paul in NZ]

Cheers for that. Didn't realise this was going to get so complicated.

Its not complicated - it's a moto guzzi ffs... Its about as simple as a motorcycle can get without being a bicycle BUT they do have their own ways. If it was a Jap 4 potter it would soldier on until it got so difficult you would just bin it ;-)

[MotoKuzzi]

Its not complicated - it's a moto guzzi ffs... Its about as simple as a motorcycle can get without being a bicycle BUT they do have their own ways. If it was a Jap 4 potter it would soldier on until it got so difficult you would just bin it ;-)

Main reason I bought it in the first place, thinking I could manage the basic technology, but when it comes to ECU's and how they operate it's all a learning curve at the moment. TZ checked out the spark output at the plugs for me tonight and reckons it's more than sufficient, but I will have a crack at cleaning those sensors out of curiosity if nothing else. He thinks part of the problem on the rhs could be slight oiling not what i wanted to hear necessarily. I suppose i can live with that for the time being as long as I can ride it with a degree of reliability.

[Paul in NZ]

Main reason I bought it in the first place, thinking I could manage the basic technology, but when it comes to ECU's and how they operate it's all a learning curve at the moment. TZ checked out the spark output at the plugs for me tonight and reckons it's more than sufficient, but I will have a crack at cleaning those sensors out of curiosity if nothing else. He thinks part of the problem on the rhs could be slight oiling not what i wanted to hear necessarily. I suppose i can live with that for the time being as long as I can ride it with a degree of reliability.

Hence my recommendation for Guzziology - it's essential reading for simple folks like me... End of the day, if bozo's like me and that dodgybugger can keep our old Guzzi shitters running it's not that hard. EFI can seem tricky but it's not really but so are the twin points set ups....

The other thing you will need to set (at some point) is the TPS but apparently it's simple.

Get onto a septic guzzi site and ask away - the cali is much loved there and they have a gazzillion of em... (oh and ring Pete at Moto Kiwi)

Oh - one thing I will recommend, faffing about with the ignition is just one step. You should always try and baseline the tappets etc first. If the valve clearances are not right, airfilter cleaned etc it will never run properly.