1981 Honda CM400A Overview, Reviews, Ratings & Specs
The 1981 Honda CM400A, part of the CM400 series produced from 1979 to 1982, is a classic Japanese cruiser. Characterized by its relaxed riding posture and chrome accents, it offered a comfortable and accessible V-twin experience. The 'A' suffix denoted its automatic transmission, a significant feature for its time. It stood out for its user-friendliness, making motorcycling approachable for a wider audience, and remains popular among vintage enthusiasts for its style and ease of use.
The Good
The 1981 Honda CM400A boasts exceptional reliability, a smooth automatic transmission for effortless riding, and a comfortable, upright seating position. Its classic cruiser design evokes nostalgia, while its fuel efficiency appeals to practical buyers. This combination offers a joyfully accessible and dependable motorcycling experience.
The Bad
Potential weaknesses for the 1981 Honda CM400A include the automatic transmission's tendency to wear over time, requiring careful maintenance. Carburetor issues and aging electrical components are also common concerns. Rust on the frame or exhaust, especially in salt-belt regions, is another area to inspect.
1981 Honda CM400A: Quick Overview
- Engine: 395cc, air-cooled, 4-stroke, SOHC, 4-valve, V-twin
- Engine Options: The primary engine for the CM400A was the 395cc V-twin. Manual transmission versions (CM400C, CM400T, CM400E) shared a similar engine but featured a 5-speed gearbox.
- Horsepower: Approximately 32-34 horsepower at 7,500 rpm (figures vary slightly depending on source and specific trim).
- Torque: Around 23-24 lb-ft at 6,000 rpm.
- Fuel Economy: Typically in the range of 50-60 miles per gallon (MPG), depending on riding conditions and maintenance.
- 0-60 Times: Estimated to be in the 8-10 second range. This was not a performance-focused machine, prioritizing smooth acceleration over rapid sprints.
- Top Speed: Generally around 90-100 mph.
- Transmission: The CM400A featured a 3-speed automatic transmission with a torque converter, a key differentiator. Other CM400 models had a 5-speed manual transmission.
- Final Drive: Chain drive.
- Brakes: Front: Disc brake. Rear: Drum brake.
- Suspension: Front: Telescopic forks. Rear: Dual shock absorbers with adjustable preload.
- Fuel Capacity: Approximately 3.4 gallons (12.9 liters).
- Dry Weight: Around 365 lbs (165 kg).
- Trim-Level Features (CM400A): The 'A' model specifically highlighted its automatic transmission. It typically featured a classic cruiser styling with a stepped seat, teardrop fuel tank, and ample chrome. Other trims like the CM400E (economy) might have had slightly different styling or fewer chrome accents, while the CM400T (touring) could offer some minor touring amenities. The CM400C was a custom variant.
- Towing Capacity: Not applicable. This vehicle is a motorcycle and is not designed for towing.
1981 Honda CM400A Specifications
Vehicle Information
| Year | 1981 |
| Make | Honda |
| Model | CM400A |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Motorcycle |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | HAMAMATSU |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 395cc 2cyl |
| Engine Size | 395L |
| Engine Cylinders | 2 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | - |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1981 Honda CM400A Have?
The 1981 Honda CM400A, like many motorcycles of its era, has some commonly reported issues that owners and potential buyers should be aware of. While Honda is renowned for its reliability, age inevitably brings wear and tear. One of the most frequently cited concerns revolves around the automatic transmission. The torque converter and its associated clutch packs can eventually wear out, leading to slipping or harsh engagement. Regular maintenance, including fluid changes, is crucial to prolonging its life.
Carburetor issues are also common. Over time, fuel deposits can clog the jets, leading to starting problems, rough idling, or poor performance. Rebuilding or thoroughly cleaning the carburetors is often a necessary part of maintenance for these older bikes.
Electrical system problems can surface as well. Aging wiring harnesses can corrode, connectors can become loose or oxidized, leading to intermittent issues with lights, ignition, or charging system components. The stator and rectifier/regulator are also known failure points on many vintage Japanese bikes, including the CM400 series.
Rust is another prevalent concern, particularly on the frame, exhaust system, and chrome parts, especially if the motorcycle has been exposed to moisture or used in areas with road salt. Inspecting for frame damage or excessive corrosion is vital.
Brake components, such as the brake lines and caliper seals, may require replacement due to age and fluid degradation. The front disc brake, while an improvement over drum brakes, can still experience issues if not maintained.
Regarding recalls, specific recalls for the 1981 model year are not widely documented or prevalent in general owner discussions. However, it's always advisable to check with Honda or a Honda dealer with the VIN to see if any safety recalls were issued and remain unaddressed.
Long-term reliability of the CM400A is generally good if it has been consistently maintained. The engine is robust, but it's the ancillary systems and wear items that are more prone to issues due to age. A well-cared-for CM400A can still provide many years of enjoyable riding, but buyers should anticipate some maintenance and potential repairs to keep it in top condition.
Carburetor issues are also common. Over time, fuel deposits can clog the jets, leading to starting problems, rough idling, or poor performance. Rebuilding or thoroughly cleaning the carburetors is often a necessary part of maintenance for these older bikes.
Electrical system problems can surface as well. Aging wiring harnesses can corrode, connectors can become loose or oxidized, leading to intermittent issues with lights, ignition, or charging system components. The stator and rectifier/regulator are also known failure points on many vintage Japanese bikes, including the CM400 series.
Rust is another prevalent concern, particularly on the frame, exhaust system, and chrome parts, especially if the motorcycle has been exposed to moisture or used in areas with road salt. Inspecting for frame damage or excessive corrosion is vital.
Brake components, such as the brake lines and caliper seals, may require replacement due to age and fluid degradation. The front disc brake, while an improvement over drum brakes, can still experience issues if not maintained.
Regarding recalls, specific recalls for the 1981 model year are not widely documented or prevalent in general owner discussions. However, it's always advisable to check with Honda or a Honda dealer with the VIN to see if any safety recalls were issued and remain unaddressed.
Long-term reliability of the CM400A is generally good if it has been consistently maintained. The engine is robust, but it's the ancillary systems and wear items that are more prone to issues due to age. A well-cared-for CM400A can still provide many years of enjoyable riding, but buyers should anticipate some maintenance and potential repairs to keep it in top condition.
How long will the 1981 Honda CM400A last?
Based on owner data and anecdotal evidence, a well-maintained 1981 Honda CM400A can realistically accumulate 50,000 to 100,000 miles or more. The V-twin engine itself is known for its longevity and can often exceed 100,000 miles with regular oil changes and proper care. However, its long-term durability is heavily influenced by maintenance habits. Weaknesses that tend to emerge over time include wear in the automatic transmission components, eventual deterioration of electrical connectors and wiring, and the need for carburetor servicing. Rust can also become a significant factor depending on climate. While the core engine is durable, owners should expect to address wear items and aging systems to maintain its serviceability.
What Technology & Safety Features are Included?
The 1981 Honda CM400A is a product of its time, and as such, its technology, entertainment, and safety features are very basic by modern standards.
Built-in Tech: The primary technological feature is its 3-speed automatic transmission, which was a significant convenience for riders, especially those new to motorcycling or who preferred not to manage a clutch and gear shifter. The instrument cluster typically included a speedometer, tachometer (though some simpler models might omit this), and indicator lights for turn signals, high beams, and neutral.
Entertainment: There is no built-in entertainment system in the traditional sense. The "entertainment" was derived from the riding experience itself – the sound of the V-twin engine, the wind, and the scenery.
Driver-Assistance Features: Modern driver-assistance systems were non-existent. The focus was purely on mechanical operation. Features like ABS, traction control, or any form of electronic rider aid were not part of this motorcycle's design.
Safety Features: Safety features were limited to the mechanical aspects of the motorcycle. The front disc brake offered better stopping power than drum brakes of the time, and the rear drum brake provided adequate stopping for its performance capabilities. The motorcycle's lighting system, including headlights, taillights, and turn signals, was standard for the era. Reflectors were also incorporated.
Optional Features: Optional features were typically limited to accessories added by the owner or dealer. These might have included:
Crash-Test Ratings: Motorcycles are not subjected to crash-testing in the same way that automobiles are. Therefore, there are no official crash-test ratings available for the 1981 Honda CM400A. Safety for riders relies heavily on their riding skills, protective gear, and the inherent stability and braking capabilities of the motorcycle.
Built-in Tech: The primary technological feature is its 3-speed automatic transmission, which was a significant convenience for riders, especially those new to motorcycling or who preferred not to manage a clutch and gear shifter. The instrument cluster typically included a speedometer, tachometer (though some simpler models might omit this), and indicator lights for turn signals, high beams, and neutral.
Entertainment: There is no built-in entertainment system in the traditional sense. The "entertainment" was derived from the riding experience itself – the sound of the V-twin engine, the wind, and the scenery.
Driver-Assistance Features: Modern driver-assistance systems were non-existent. The focus was purely on mechanical operation. Features like ABS, traction control, or any form of electronic rider aid were not part of this motorcycle's design.
Safety Features: Safety features were limited to the mechanical aspects of the motorcycle. The front disc brake offered better stopping power than drum brakes of the time, and the rear drum brake provided adequate stopping for its performance capabilities. The motorcycle's lighting system, including headlights, taillights, and turn signals, was standard for the era. Reflectors were also incorporated.
Optional Features: Optional features were typically limited to accessories added by the owner or dealer. These might have included:
- Custom seats or backrests for enhanced comfort.
- Luggage racks or saddlebags for carrying capacity.
- Windshields for rider protection from the elements.
- Chrome accessories to further customize the appearance.
Crash-Test Ratings: Motorcycles are not subjected to crash-testing in the same way that automobiles are. Therefore, there are no official crash-test ratings available for the 1981 Honda CM400A. Safety for riders relies heavily on their riding skills, protective gear, and the inherent stability and braking capabilities of the motorcycle.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
1981 Honda CM400A Prices and Market Value
When new in 1981, the Honda CM400A had an approximate retail price ranging from $1,800 to $2,200, depending on dealer pricing and any optional accessories. As a practical, entry-level cruiser with an automatic transmission, it offered good value.
Today, the used market prices for a 1981 Honda CM400A vary significantly based on condition, mileage, originality, and provenance. Expect to find examples ranging from $1,000 for bikes needing significant work to $3,000-$5,000 for well-maintained, low-mileage, or pristine examples. Some rare or exceptionally well-restored models could command higher prices.
Depreciation for the CM400A, like most motorcycles, was steep in its early years. However, it has now transitioned into the classic or vintage motorcycle market. Its resale value is primarily affected by its overall condition (mechanical and cosmetic), originality of parts, documented maintenance history, and demand from vintage enthusiasts or new riders seeking an accessible classic. A fully functional automatic transmission also adds a unique selling point for its target audience.
Today, the used market prices for a 1981 Honda CM400A vary significantly based on condition, mileage, originality, and provenance. Expect to find examples ranging from $1,000 for bikes needing significant work to $3,000-$5,000 for well-maintained, low-mileage, or pristine examples. Some rare or exceptionally well-restored models could command higher prices.
Depreciation for the CM400A, like most motorcycles, was steep in its early years. However, it has now transitioned into the classic or vintage motorcycle market. Its resale value is primarily affected by its overall condition (mechanical and cosmetic), originality of parts, documented maintenance history, and demand from vintage enthusiasts or new riders seeking an accessible classic. A fully functional automatic transmission also adds a unique selling point for its target audience.
1981 Honda CM400A Cost of Ownership
The 1981 Honda CM400A is generally economical to own. Insurance costs are typically low, especially for classic bike policies, given its age and modest performance. Fuel consumption is excellent, averaging 50-60 MPG. Maintenance is straightforward for the engine, with routine oil changes and filter replacements being affordable. However, parts for the automatic transmission can be harder to find and more expensive if repairs are needed. Repair costs can vary; while common parts like brake pads are cheap, specialized transmission work or finding original trim pieces can add up. Overall, it's an economical choice for ownership if you're prepared for vintage bike upkeep.
1981 Honda CM400A Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
1981 Honda CM400A Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
1981 Honda CM400A Insurance
Insurance for a 1981 Honda CM400A is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1981 Honda CM400A Compare to Other Motorcycle?
The 1981 Honda CM400A occupied a niche primarily defined by its automatic transmission, targeting new riders or those seeking simplicity in the entry-level cruiser segment. Its key rivals were other Japanese motorcycles in the 350-500cc range, though few offered a direct automatic competitor.
Performance: Compared to manual transmission rivals like the Yamaha XS400 or Kawasaki KZ440, the CM400A's performance was somewhat dulled by the 3-speed automatic. While smooth, it lacked the responsiveness and acceleration of its geared counterparts. Top speed was comparable, but the riding experience was geared more towards cruising than spirited riding.
Features: The defining feature was the automatic transmission. Otherwise, its features were standard for the era: a single front disc brake, dual rear shocks, and a classic cruiser aesthetic. Rivals often offered similar basic configurations, with manual bikes potentially offering more adjustability or higher-spec components depending on the trim.
Reliability: Honda's reputation for reliability generally placed the CM400A favorably. However, the automatic transmission was a more complex system than a manual gearbox, potentially leading to more specific wear-related issues over time. Rivals like Yamaha and Kawasaki also had strong reliability records for their 400cc class bikes.
Price: When new, its price was competitive, especially considering the inclusion of an automatic transmission, which often added a premium. In the used market today, its price is influenced by its classic status and automatic feature.
Alternatives:
Performance: Compared to manual transmission rivals like the Yamaha XS400 or Kawasaki KZ440, the CM400A's performance was somewhat dulled by the 3-speed automatic. While smooth, it lacked the responsiveness and acceleration of its geared counterparts. Top speed was comparable, but the riding experience was geared more towards cruising than spirited riding.
Features: The defining feature was the automatic transmission. Otherwise, its features were standard for the era: a single front disc brake, dual rear shocks, and a classic cruiser aesthetic. Rivals often offered similar basic configurations, with manual bikes potentially offering more adjustability or higher-spec components depending on the trim.
Reliability: Honda's reputation for reliability generally placed the CM400A favorably. However, the automatic transmission was a more complex system than a manual gearbox, potentially leading to more specific wear-related issues over time. Rivals like Yamaha and Kawasaki also had strong reliability records for their 400cc class bikes.
Price: When new, its price was competitive, especially considering the inclusion of an automatic transmission, which often added a premium. In the used market today, its price is influenced by its classic status and automatic feature.
Alternatives:
- Similar: Yamaha XS400 (manual), Kawasaki KZ440 (manual). These offer comparable engine displacement and a classic cruiser style but require manual operation. They might offer slightly more spirited performance.
- Better (depending on needs): For riders specifically seeking an automatic, there weren't many direct competitors in 1981. However, looking at later models or different classes might reveal more advanced automatic options. For those prioritizing performance and willing to shift, a manual 400-500cc Japanese cruiser or standard motorcycle from the era would be a more engaging ride. If simplicity is the absolute priority, some later automatic scooters offered even more user-friendly operation, albeit in a different style.
Final Verdict: Is the 1981 Honda CM400A a Good Motorcycle?
The 1981 Honda CM400A is ideal for beginner riders seeking an unintimidating introduction to motorcycling, or for experienced riders who appreciate the simplicity and convenience of an automatic transmission for relaxed cruising. It's also a good choice for collectors or enthusiasts looking for a stylish, reliable, and economical vintage Japanese cruiser.
It is certainly worth buying, particularly in the used market, provided it has been well-maintained. The 'A' trim with its automatic transmission is its defining feature and often its main appeal. Buyers should prioritize condition over mileage and be prepared for potential age-related maintenance on its electrical and transmission systems. Purchasing a well-documented example from a reputable seller will significantly enhance the ownership experience and long-term satisfaction.
It is certainly worth buying, particularly in the used market, provided it has been well-maintained. The 'A' trim with its automatic transmission is its defining feature and often its main appeal. Buyers should prioritize condition over mileage and be prepared for potential age-related maintenance on its electrical and transmission systems. Purchasing a well-documented example from a reputable seller will significantly enhance the ownership experience and long-term satisfaction.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.