Paso,

Yep, those V-tech coils is what I ment. They looked tempting to me. But at the end I bought Dyna's. the connectors have to be modified, because I want to back to original anytime. And I like those Amp. connectors.
also your edit about the single fire and dual fire is correct.
sounds maybe odd but is bloody simple. very often is that a ingredient for reliability. unfortunately there are some other issues with Harley.

Bertus

Don't forget to open up your plug gap to take advantage of the higher energy coils

is there a rule or recommendation about how much ?

G.

From what I have come across last days studying Dyna coils and its fitting to a bike, gab on the sparkplug should be 0,9 mm.

It als stated that;
- Sparkplug wire diameter ouitside is 7 to 8mm
- Can be used an unshielded cable or shielded
- Suggest to use a lager inner copper wire, more strands, some race plugs have less inner copper wire,
- Can be used with original sparkplug wire and sparkplug cap from Ducati
- Can also be used with Dyna sparkplug wire and cap of NGK
- Suggest using an NGK sparkplug for full result
- Pay attention to the polarity of the coil
- And don't mix op standing and horizontal cylinder while fitting the coil and wire.

Looking at the installation it is a easy mod to be done. See
Note that the sparkplug wire connection is now at the underside of the coil, in line with the coil. Looks more easy than the exit at half the coil hight facing horizontal instead of vertical.

noone bid on the black Dynas I posted on the first page. They went for only $24.95!
G.

Paso,

maybe the fact that they are black is the reason. no one would like a lime green Ducati.

Bertus

I don`t get it

another set
http://www.ebay.com/itm/Moto-Guzzi-T-3- ... 9e&vxp=mtr

So not usable on the Ducati's as these need 3 Ohm versions.

Bertus

So, I payed to much for mine. € 114 for a brand new set.
But, when she runs better as before, I get over that soon.

Bertus