Topic: 1982 CM450A Hondamatic

[Flyin900]

I just purchased this CM450A Hondamatic in decent running condition with the plan to do a restoration of some mechanical and cosmetic repairs on the bike. I have restored a variety of early Honda bikes from the early 70's to the mid 80's and wanted to try something slightly different.

I have always been intrigued by these semi automatic bikes and this one seems to be a good candidate only requiring a few used replacement parts for some pieces that are getting tired looking or missing. I plan to strip it back to the frame only which I have just done today. I will repaint the frame and go through the wiring harness connectors and regasket the motor outer cases and repaint it.
I will polish all the aluminum cases and forks back to a nice finish and do a refresh of the tank and side covers paint finish.

As of today it is totally in pieces down to the frame and parts boxes. I can't load the original PO pictures he sent, as the files are way too large to upload here. So a couple of the teardown pics when the bike was still mostly together.

[Flyin900]

I have the bike undergoing a full cosmetic refresh and have the frame in primer and the exhaust collector all "curing" in my garage attic as it gets pretty warm up there. Frees up some garage floor space too, as just moved another bike in there from a winter restoration in my basement.
I glass bead blasted the motor today and will primer it with a self etching primer and then repaint with DupliColor Low Gloss DE1634 Engine Enamel. I find it is a great match to the original Honda black colour and is fully chemical resistant once heat cured.

[jonnycakes]

I did a 450 chopper auto........most fun bike I've ever ridden

[Flyin900]

Thanks, I am hoping to pass it along to my brother as a first bike experience for him once it is finished. It was a runner when I bought it and was fun just twisting the throttle and pulling away from a stop.

I got the motor primed and painted the Dupli Color semi gloss black today and rebuilt the carbs.  I just need to buff the torque converter side cover back to shiny again and polish up a few side cover bolts etc; so the project is moving along well.

[TdLpps]

Very cool.  Nice to see another one coming back.

[Flyin900]

Here are a few more updates done to the refresh with the wheels being cleaned and refinished with a DupliColor gloss wheel clear coat. I have repainted all the small brackets and refinished the faded covers on the electrical switches with a new coat of black caliper paint which I heat cure. I can then repaint all the red markings back into the indents on the switch assemblies.

I am mostly finished the clean up and repainting and just waiting for a couple of additional parts before starting to assemble the bike again. My colour choice to repaint the tank and side covers still needs to be finalized, as I want to do a different colour scheme than the original dark and light blue factory finish.

[POPS 911]

Change the O-RINGS on the fuel rail as if this leaks the new gas in 2018 will eat your nice new engine paint. The petcock leaks after a long sit and you can buy a new one on E-BAY = I squirt WD into the face of this petcock while turn it off and on , hoping to soften the rubber part in side.

POPS BK911