If a little learing is dangerous

[Brockett]

I am bloody lethal
Here's the story
My  pal Steve hope to make the trip up for the lakes ride but his bike has become poorly.
The bike an MV Augusta naked F4 type thing and has a newish battery.
After a week idle in the garage the battery seem dead. Optimate  was then connected but only displays the green light that shows it has mains power.
The main fuse is good.
He connected a trickle charger for two days result no charge.
I think maybe the rectifier has cooked the battery.
I'll check the obvious stuff like earth connections and general wiring conditions.
I think that if we connect another battery and switch on ....  all the lights and warnings should illuminate. If not there is some other problem.
If the lights come on we can try to fire it up and check the voltage going into the battery at certain revs and hopefully find something less than 15 volts.

Am I on the right track????

[tallpaul]

Sounds like what I would do. Obviously use a known good battery to try this...

[kwackboy]

Indeed , you are .  . For an observation point of view , if the battery has been over charged it would look slightly bloated at the sides .

[Brockett]

Good point 
I have not see it yet I am going over there tomorrow

[Brockett]

An update
I reconnected the Optimate and after an hour the "recovery" light came on and in a further three hours the charge light. So the batter is not dead.
I attached my golf cart battery and switched on and all the lights and indicator were activated as normal. We fired it up and the engine started straight away. However, when we switched it of the engine continued to run for 15 to 20 seconds!
We could hear something (?) was activated (ignition off) that sounded like a small puncture releasing air.
We removed the fuses one at a time until we reached 13 (of 13)  and found the fuse burnt but still intact. We removed the fuse and the noise stopped. We removed the fuse board which has a good deal of electronics sealed within it ( diodes) and found the rear of the board had small burnt patch. 
Our expert mechanic suggested the fuse board is very delicate and a sharp knock could have caused an internal short. Well ... my mate was knocked off it at low speed a few weeks ago. So there we have it a 15 year old sealed unit that cannot easily be got at for repair, and is no longer available from the manufacturer.
Things do not look good.

[TLPower]

Fear not young Brockett, the item you speak of will at some stage been sourced from another brand. I'm fairly certain that MV were part of the Cagiva group 15 years ago and as such they fitted stuff that was readily available. Google any numbers you can find on the offending article, it will probably come up with a Ducati or Aprilia part, they in turn will have sourced it from either Bosche or Magnetti Morreli (?)

[tallpaul]

If it's fragile and electric it will be Italian. My money is on Magnetti Morreli...

[Freddyfruitbat]

When I read the subject line I thought you were going to tell us you'd walked into a lamppost while reading page 3 (or is that no longer a thing?) of the Sun...

[Brockett]

My pal says his Brutal was so expensive it saw MV go bust and then we look at the dud fuse box and find it stamped "SAAB" and oh! dear another business that went down the tubes.

Sorry FFB but I am a bloke, therefore, reading AND walking are beyond me.....

[Freddyfruitbat]

I am a bloke, therefore, reading AND walking are beyond me.....

Exactly - that's why you ended up walking into the lampost   

[TLPower]

Plenty of SAAB fuseboxes on Ebay.

Just sayin'.

[sillyboy]

We removed the fuses one at a time until we reached 13 (of 13)  and found the fuse burnt but still intact. We removed the fuse and the noise stopped. We removed the fuse board which has a good deal of electronics sealed within it ( diodes) and found the rear of the board had small burnt patch. 
Our expert mechanic suggested the fuse board is very delicate and a sharp knock could have caused an internal short. Well ... my mate was knocked off it at low speed a few weeks ago. So there we have it a 15 year old sealed unit that cannot easily be got at for repair, and is no longer available from the manufacturer.
Things do not look good.
[/quote]try dave king electronics for a repair, don't have an address but a google will find him. I know hedoes repairs to all kinds of circuit boards etc off various machines.

[Rusty Nuts]

A little learning can be dangerous.
A little learing,  who knows?

[Brockett]

A replacement has been sourced ( from Holland) and my pal is going to collect it today.

[Holmsey]

A replacement has been sourced ( from Holland) and my pal is going to collect it today.

He must be a good pal to go all the way to Holland for you.

[Brockett]

Ah! but it's his MV not my bike (too exotic for me) and he's collecting it from a dealer who had it posted from Holland.