Brettski,
Check this out. I bought a RF remote to start my generator but mine has an electric choke. You could just add a servo (12 volt) as Lee proposed to the other output and need no wires underground.
Total cost was $16.00.

http://cgi.ebay.com/2-CH-RF-Wireless-Rem...1742.m153.l1262


Dreaming of the pond!