i am interested in hearing from any owners(past or present) of these engines (THD,etc.,models). I've just begun investigating this type of engine for a future project (small crawler). I'd like to know about the presentday parts availability status,along with whatever information anyone cares to share about those vertical twins. I believe that they were made available with both magneto and dist./coil ignitions,hand and e-start. Looks like a great candidate for my project.
Thanks in advance!!