Sam,
I don't recall seeing such a hole on my C95. The bike is all wrapped-up for winter with my others in the work garage. I don't have a stove like you guys to heat it up so everything stays dormant for a while yet - I only open it up to get the dogsled out. So, I guess I'll have to wait a few more months before I can confirm the number of bearings.
Interesting reading the Honda shop manual for these models. It also describes that the cam on the CA95 was different; probably a "hotter" version. It still seemed to have the 360 crank with a loss/waste ignition system. According to the manual, some of these differences with the CA95 didn't occur until after a particular serial number, so I assume the early motors were the same as the C95.
A lot of people in the US aren't aware that their early Honda models (CA92/95, CA72/77, CA100/102, etc) were unique to the American market. An interesting and popular model here in Canada, early on, was the C105. This was the 55cc version of the SuperCub - a model that was my first bike (when I was younger...about 5 years older than you are now Ben
). This model was never sold in the States, although they had a 55cc version of the trail model. The interesting history (I believe to be true) is that the importer in Ontario, Canada decided to promote this bored-out version of the SuperCub, because in order to operate a vehicle on the then new expressways (highways 400 and 401) the vehicle had to have at least 5.0HP. The original 50cc SuperCub was rated at 4.5HP whereas the 55cc had a rating of 5.0HP. There were no licensing restrictions here, so the 50cc wasn't an advantage - we rode with a general operators license. No special motorcycle rating existed - you just had to be 16 years old before getting a license. Now you also need a motorcycle endorsement/license in order to operate a motorcycle - that's a course I teach. They also now recognize limited-speed motorcycles under 50cc, and there is another rating of license required for them
. In the province of Quebec, you can get a license to operate limited-speed at the age of 14 - but not so-far in any other province. Sorry for my discourse on ancient history...any similarities over there?
BTW...I'm Bob. (And, my family name sort-of means "rider" in the original language of origin. I'm a "nut" about Hondas, and I love to "ride" as my real name implies.
)