[SEL] Ignitor question

[Michael Tucker]

Howdy all,

I have a couple of igniter questions. I know that with spark plugs, a 
spark plug may have a reasonable spark outside of the cylinder but fail 
to spark inside the cylinder under compression. Is that the case with an 
igniter? I'm getting irregular spark out of the igniter on my 1907 4 hp 
IHC Famous. Although there are times when it doesn't spark at all and 
I'm not really sure which wiggle or other assorted voodoo seems to get 
it to spark, whne it sparks it seems to spark well when it's grounded 
outside of the cylinder. However, when it's installed on the engine I 
don't seem to be getting spark (plenty of gas, plenty of compression and 
timed correctly). So, back to my question, are igniters like spark plugs 
in that they may not fire correctly under compression?

That's the situation and question for educational purposes but I guess 
that the bigger and more important question is who have y'all used that 
rebuilds igniters who will be able to do it BEFORE Portland?

Thanks for the help,
Mike