Mystery Hole

[Wilf]

I arrived at the same conclusion about the clutch engagement after I thought about it a bit. My starter is all apart now and aside from cleaning and new grease everything looks good in there. I didn't really want to have to undercut the comm.

[honda brian]

Hi Wilf, new boy (I wish) here. I bought a c78 frame with a c77 engine a couple of months ago. Upon cleaning many years worth of accumulated dirt and debris from the upper case l found a hole the same as the one in your case.I thought it might be a drain hole but it is not in the lowest position in the case. One thing is for sure. It looks very much original.The engine number is C77E-110815. I think this is a 1961 engine and it has the breather at the back of the case. I know it is an old thread but just wanted you to know that you are not alone.
Wish me luck with my latest folly. Regards Brian.

[e3steve]

Hi Brian, yes, that is a '61 engine nr. Pretty rare too, I'd say. Especially in UK (I see you've removed your geo-location from your avatar!).

Are you a VJMC(UK) member? Dennis Lodge (editor) has a beautifully-restored CB72 with the same '61-series motor. My frame is a '61 CB72 and that came from the UK -- I'm still on the lookout for a correct ['64] frame for my CB.

If you're not a member already, then it's worth joining; and the bi-monthly publications are packed with fascinating articles, pictures and info. And watching others' restos is great encouragement!

Interesting that yours is a C78; what's your frame nr? I believe it's documented that 78s were later in the production run. Don't forget to add your bike & numbers in the h305 register http://www.honda305.com/superhawk/ -- click Survey in the left pane.