1982 Honda Cm450
The Honda CM450A is a motorcycle made by Honda in 1982 and 1983. It was based on the CB400 and CM400 models (1978–1981), especially the CM400A Hondamatic (1980–1981). It had a 447 cc (27.3 cu in) SOHC parallel twin engine with two carburetors and a two-speed transmission with a torque converter. Many engine components are common with the Honda CB400T models from the same year. The parallel twin engine has three valves per cylinder (two intake, one exhaust) and a five-speed manual or two-speed automatic transmission. In 1982, the CM engine was bored out to a 447 cc engine with six gears, and the series was renamed CM450.
What was your intended objective when you started the build?
Take a lame, unassuming motorcycle and re-make it with modern parts in the classic cafe racer style.
Download HONDA CB450 CM450 CB450SC SERVICE REPAIR MANUAL PDF 1982-1985. This Highly Detailed PDF Service Repair Manual Contains Everything You Will Ever Need To Repair, Maintain, Rebuild, Refurbish or Restore Your Vehicle. 1982 Honda CM450 Custom from United States of America. Summary: I would buy another one just like it. Faults: New rear tire every 5000/6000 miles. Front tire every 15000 miles. Throttle cable broke twice. I keep a spare one under the seat now. Tachometer broke at 74000 miles. 1982 Honda Cm450 Specs These bikes had a 395cc parallel twin engine that was air cooled. The honda cm series was a street bike precursor to the honda rebel series of motorcycles produced from 1979 1981. 1982 honda cm450e the cm450e 82 was sold in 1982 and was available in one of two colors.
What motivated you to start your project?
I essentially wanted to build a cafe racer motorcycle from scratch, so I could learn everything I could possibly learn. Then for future rebuild projects I would have a baseline knowledge of what is worth is and is not worth my time, and what I do and do not enjoy doing.
What was the most unique and creative thing you did to the bike?
1982 Honda 450 Custom
Most unique part of the bike is incorporating a single-sided swing arm and a rear monoshock conversion onto the frame of the 1982 Honda CM450. Also, the subframe I fabricated is a unique style that incorporates an x-frame behind the rear monoshock. I also made the cafe seat (fiberglass & epoxy resin) from a custom mold I created to fit the subframe perfectly.
1982 Honda Cm450 Custom
What are you most proud of?
I am most proud of solving the high complexity of incorporating the single-sided swing arm with an old frame and providing enough chassis stiffness and subframe supports. I was a challenge to resolve the conflicts that this created with the rearsets, path for chain, and rear break master cylinder. Also I re-wire the entire bike’s electrical system from scratch.
What do other people say about your motorcycle?
Awesome!
love the look of this bike, I do have a barn find of the exact year/model so I know what it looks like before the build. Great upgrade! sharp for sure.