From:Bud e-mail:buddut-A-hotmail.com
Subject:RE: Hummer Head Date:Wed Dec 24 11:19:44 2014
Response to:20107
Nope I think it's for the throttle cable. Look in member pages for 56B and you can see it.

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Just picked up a 56B motor on a box. Really in decent shape and have a roller to put it in. As a newbie to these bikes I have a question: What is the boss on the right side of the head? is it for holding the plug wire from the magneto? Thanks for any information... FRED....