solved using this guide, recommended
http://www.electrosport.com/technical-r ... ding-guide
http://www.electrosport.com/technical-r ... sis-center
Guides are in pdf form so can be views offline beside the bike. Worthwhile downloading and keeping.
then in middle of page at bottom download the guide
turns out it was the 40 amp mega large orange fuse. Just down the side of the main fuse box.
It appeared ok when held up to light, so i was told, as i had to rely on others to do it due to an injury. The connectors it fitted in to had perfect continuity.
Never ever,ever thought of putting a tester across the two spades, and lo and behold it was duff.
What a duffer
buy a spare 40 amp mega fuse now and stow it on the bike.
If you break down in the middle of nowhere , fat chance of getting a spare giant fuse (never seen one that
size 
sir)
I was always under the impression that if the main fuse blew, nothing would work, but on the morini everything works except the damn rectifier. So, the bike will start after you charge the battery or leave it so the battery recovers.
On the question of the rectifier wire colours . It appears that it doesn't matter which colour as long as it's red to red etc. If you were using an aftermarket rectifier , a ducati multistrada 1000ds fits fine and the only difference is the black negative wire is green coloured.
But bear in mind to check the 3 yellow wires between the rectifier and alternator harness connector for signs of melting insulation due to connector block resistance. Not just the obvious one at the rectifier but the one near the engine. I see some folk on the other forums have rigged up a 12v computer fan to aid cooling of the rectifier, which seems a good idea as it's stuck between two hot silencers without an auxiliary heat sink , the mesh vents are not in direct airflow due to the riders legs, so you can bet it runs pretty hot under the seat.
The original retro fit white choc block fitted to the rectifier wiring as an update, is actually not the correct item . It should be replaced with a "brown" version which is heat resistant .
i'm going to fit one of these
- !CDnjTjgCWk~$(KGrHqR,!gwE06HgYVpZBNPKw)wFtQ~~0_12.jpg (40.32 KiB) Viewed 3600 times
on the rectifier with some thermal glue as i reckon there is too much heat in the tailpiece stuck between the cans.
Its a copper plated computer fan body ,2 wires, very small . less than a fiver.
