Morini Kanguro Rebuild

Scooter stator investigation

This morning I booked a few hours off work and went to Doncaster to see the lambrettaspares.com pattern parts stuff. An interesting visit but I'm not sure of the use of their components:

1. The ignition coils have between 450 and 500 ohms and without unwinding it I couldn't get a good estimate of the wire diameter. It's therefore hard to judge the number of turns and current capability. The former/bobbin has an 11mm x 18mm central hole and so is likely to be too tight on a Morini laminate - Bob's former was 13mm. Also it is 'thinner' across the radius by a few mm so has less wire space. Note that Beedspeed's is 13mm. If there are more turns I suppose it should give a better spark at low revs (Lambrettas do 3k to 10k apparently, so that suits us) but might become too high volatge for the CDI components at high rpm, unless the copper/aluminium plates do their stuff. A Morini ignition coil must supply current for 2 CDIs, perhaps thinner wire can't do that and will overheat?
   
   
2. The Lambretta baseplate is TOTALLY different to the Morini shape and of no use. This means that a 'donor' Morini base is needed - I'd hoped that the Lambretta bit could be adapted to make a totally new stator.
3. The diameter and shape of the laminated 'star' is very similar, perhaps 0.3 mm smaller diameter, which may be a good thing for fit, if not for flux.
   
4. Without dismantling both parts I cannot tell if the Lambretta core WILL fit the Morini baseplate correctly, especially with regard to the 'standoffs' that set the height of the assembly.
5. The Lambretta power coils are slightly smaller in height, again, likely to be a good thing as a transplant needs space.
6. Both my X1 stator and the Lambretta pattern parts have 6 rivet points (the Lambretta has a screw for the pickup in the 6th hole) rather than the 3 shown on Bob's picture. It looks as though all 6 go through baseplate and laminations and thus need removing.
7. They have both Indian and German stator assemblies. The latter have a better quality feel to them (especially the alloy baseplate but that is of no use!) and are available up to 120W which is fair. The Indian stator has an aluminium 'regulator' plate which is not fixed to the baseplate whereas the German has what might be copper, rivetted to the baseplate similar to my X1 example.
8. When the scooter ignition pickup is removed it would be possible to mount a 5th short coil, as per Morini.
9. Despite these misgivings I bought the last ignition coil and an 80W Indian stator coil that had a broken baseplate so they let me have it relatively cheaply. I decided I'd experiment with that rather than the £80 120W model which is likely to be the best long term.
10. Overall the parts are not all that useful and the formers aren't exactly the same and anyway it would be a costly way to get formers for a total rewind. As the ignition coils have 50% higher resistance we don't know what is in them so even a Beedspeed 13mm item is likely to need a rewind which makes it very expensive.

At present I'll accept my slightly reluctant to start Kanguro and dismantle the spare and new bits to give you more information.