Here's one from the Department of Stupid Questions: I'm trying to work out how I can put a set of cheap replacement coils on the Mk II (I have a set of
7mm Mallory leads I'd like to use, so thinking I'll pick up a set of coils from a 90s bike of some sort).
I'm completely out of my depth as far as this kind of stuff goes; put a multimeter across the primary circuit in the coils presently on the bike (no idea if they're OEM or not, but they do have the collet-type lead attachments) and got 3.8-4.1 Ohm. Wasn't able to measure the secondaries, leads / caps as they're possibly fkd. Also measured a pair of GPz9 coils tonight, which came in at 3.1-3.2 Ohms.
If memory serves, it's the ratio between the primary and secondary windings that dictate the 'output' of the coil, so I guess if the Mk II coil secondaries are roughly 4/3 that of the GPz, they'd be the same. Am I right in thinking this ?
Second point, what is to stop me installing, say, the GPz coils onto the Mk II ? I've read on another forum a comment about ballast resistors being needed, but I really don't understand any of this ...
In the perfect world I'd get a set of Accel or Dyna coils and hum off into the sunset, but my budget is pretty tight at the moment - just want to get the fackin engine actually running !
Thanks in advance,
Brian