Boy, that one has some corrosion on the cases. The side covers are metal so they can be painted (the rear fender is like the C70 in the regards it is metal as well...), unlike the C70 (I have a '81 Parakeet Yellow C70) that the plastic is impervious to paint...the oils in the molded plastic Honda used will make most paints peel right off. The color was molded into the plastic and the fenders were more flexible than most, until the sun bakes them and the years make them brittle. I shattered my front fender when I loaded my C70 in my 240 sedan after buying it in Phoenix. I had removed the rear seat bottom before moving to AZ so I could haul more. Intended to retrieve it when I returned to Ohio. It ended up in storage after I ruptured my achilles tendon in my right ankle my second week on the new job back in '09.
I acquired my C70 while living in Tucson and commuted to work on it in Rush Hour traffic for a while. Rush Hour traffic didn't like my slow speed. The C70 being 72cc didn't see indicated above 40-42 with my size on it and it wasn't the safest ride given its lack of ability to get out of trouble like you can with a larger bike that has power to squirt around an obstacle quickly. Tucson has over a million people (1.5 million in the metro area) and I would ride across town in the summer to the dealer, Mussleman's Honda, that I liked and still use/support.
Is this is the OHC motor like used in the S90 or the OHV pushrod motor? The OHV motor a friend in Oregon disliked and advised me to stay away from.
Tiddlers, small displacement bikes, are great fun in the city and Victoria should be a great ciity for the CM91 as it has enough power to get out of its own way and there were lots of bikes in Victoria as well as motorcycles, so the residents are more aware of them and look for them I hope, as opposed to cities where they have less bike/motorcycle traffic. Albuquerque is a very large city and has a very large bicycle community with lots of bike traffic/commuters but the accident rate for bikes is pretty high as the motorist still outnumber the cyclist by very large numbers. Seattle is more bike friendly and motorcycle friendly...as are many cities where commuters utilize bikes and motorcycles for transportation.
Fine example you have and it should clean up nicely. Looks like you have an excellent example to begin a clean up and respray of the motor and some wax and it will look great!
Well, just looked at second pic, guess it needs some TLC on the frame as there is some rust there that it could use a respray.
Does DrATV.com carry parts for the CM91? (Limited, see link below) They are in Nebraska and are a great parts source for the small displacement Honda bikes. Highly recommend them...
What is that protruding towards the front fender on the left side of the motor? Never seen anything quite like that...
The CM91 is likely to share lots of parts with the C70 and as a result you should be able to find some parts from DrATV if you don't purchase from Honda directly. Don't recall DrATV's shipping policy, I know you folks in the great white North get really raked over the coals on shipping costs from the USA by some companies and some companies have had bad experience and quit accepting orders from outside the USA and some from outside the USA and Canada...
Here's their selection of CM91 parts, they have the essentials to keep it running it appears. Their listings indicate Honda original parts with a * if I recall correctly, so that can tell you if you could get it from Honda in Canada possibly. Might save you shipping and fees for customs to not have to deal with that...
http://www.dratv.com/allcmpaw.htmlGuess there isn't as much compatible as I guessed would be, or the C70 parts availability has dropped.
Anis at one of the Indonesian ebay suppliers is pretty good for C70 parts and some S90 parts but there were lots of variation in the C70 and S90 line and the S90Z is quite a bit different from the motors on the largely domestic versions that the Yahoo S90 list or the Yahoo C70 list have. So, not everything from Anis fits the C70 or S90 but he's pretty knowledgeable about those bikes... I forget Anis's company name...going to have to look it up.
I test drove one of the Kymco ~100cc Super Cub replicas and it was very peppy and capable bike. Kymco started life as a Honda OEM supplier for motor and other parts and have since become a high quality Chinese scooter manufacturer. WAY more power and speed than the C70. But the S90 motor was that way when compared to the C70. C70 (72cc) was rated as a 5 BHP motor in perfect tune whereas the S90 (88cc) was an 8 BHP motor design. There is no replacement for displacement as the drag racers like to say...
But, OHV versus OHC designs aren't fair comparisons.
David