Honda C90 K3 1978 - Specifications & Review
Article Complete Info
| Articleid | 43877 |
|---|---|
| Category | Scooter |
| Make | Honda |
| Model | C90 K3 |
| Year | 1978 |
Chassis, Suspension, Brakes & Wheels
| Frametype | pressed steel monoque with engine part of loadbearing |
|---|---|
| Frontbrakes | Expanding brake (drum brake). twin expanding shoe |
| Frontbrakesdiameter | 110 mm (4.3 inches) |
| Frontsuspension | hydraulically dampened leading link forks |
| Frontwheeltravel | 75 mm (3.0 inches) |
| Rake | 27.0° |
| Rearbrakes | Expanding brake (drum brake). twin expanding shoe |
| Rearbrakesdiameter | 110 mm (4.3 inches) |
| Rearsuspension | hydraulically dampened with compression spring |
| Rearwheeltravel | 100 mm (3.9 inches) |
| Trail | 75 mm (3.0 inches) |
Engine & Transmission
| Borexstroke | 50.0 x 45.6 mm (2.0 x 1.8 inches) |
|---|---|
| Clutch | multi plate wet automatic |
| Compression | 8.2:1 |
| Coolingsystem | Air |
| Displacement | 89.00 ccm (5.43 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Exhaustsystem | sinle stainless steel pipe |
| Fuelconsumption | 2.50 litres/100 km (40.0 km/l or 94.09 mpg) |
| Fuelsystem | Carburettor. keihin seiki |
| Gearbox | 3-speed |
| Greenhousegases | 58.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | contact breaker points |
| Lubricationsystem | Wet sump |
| Maxrpm | 10000 |
| Power | 7.50 HP (5.5 kW)) @ 9500 RPM |
| Topspeed | 80.0 km/h (49.7 mph) |
| Torque | 0.67 Nm (0.1 kgf-m or 0.5 ft.lbs) @ 6000 RPM |
| Transmissiontypefinaldrive | Chain |
| Valvespercylinder | 2 |
Other Specifications
| Coloroptions | BRIGHT RED. METALLIC SAVANNAH GREEN. METALLIC STRATO BLUE. METALLIC DARK GREY |
|---|---|
| Comments | DURING 1978 HONDA WAS ALREADY LEGENDARY FOR THEIR STEP THRU SCOOTER BIKES. THE PERFORMANCE THEY ACHIEVED THROUGH TECHNICAL ADVANCMENTS FROM THEIR SMALL OVERHEAD CAMSHAFT MOTORS WAS INCREDIBLE. SIMILIAR MODELS ARE STILL AVALIABLE TODAY |
| Starter | Kick |
Physical Measures & Capacities
| Dryweight | 85.0 kg (187.4 pounds) |
|---|---|
| Frontpercentageofweight | 40 |
| Fuelcapacity | 5.50 litres (1.45 gallons) |
| Groundclearance | 130 mm (5.1 inches) |
| Overallheight | 995 mm (39.2 inches) |
| Overalllength | 1,830 mm (72.0 inches) |
| Overallwidth | 640 mm (25.2 inches) |
| Powerweightratio | 0.0882 HP/kg |
| Rearpercentageofweight | 60 |
| Reservefuelcapacity | 1.00 litres (0.26 gallons) |
| Seatheight | 790 mm (31.1 inches) If adjustable, lowest setting. |
| Weightincloilgasetc | 91.6 kg (201.9 pounds) |
About Honda C90 K3 1978
Introducing the 1978 Honda C90 K3, a stunning example of Honda’s mastery in the scooter category during the late 1970s. This model epitomizes the charm of classic Japanese engineering, combining practicality with an enduring style that has made it a beloved choice among enthusiasts and collectors alike. As part of Honda's acclaimed line of step-thru scooters, the C90 K3 was designed to cater to urban commuting needs while also providing a spirited ride that could handle the open road. With a compact stature and a lightweight frame, this scooter is perfect for both novice riders and experienced enthusiasts looking for a reliable and fun way to navigate city streets or weekend adventures.
Under the skin, the C90 K3 boasts a lively 89cc single-cylinder four-stroke engine that delivers a respectable 7.5 horsepower at 9,500 RPM. Its spirited performance is matched by an impressive fuel efficiency of approximately 94.09 miles per gallon, making it an economical choice for riders who prioritize efficiency. The 3-speed gearbox and multi-plate wet automatic clutch work in harmony, ensuring smooth transitions and effortless acceleration. With a top speed of 49.7 mph, the C90 K3 is not just a scooter; it’s a gateway to exploration, whether you’re zipping through traffic or cruising along winding country roads.
The C90 K3 shines with its innovative features and thoughtful design elements. The pressed steel monocoque frame, which integrates the engine as a load-bearing component, enhances rigidity while keeping the weight down to a nimble 187.4 pounds. The hydraulically dampened leading link front forks and rear suspension ensure a comfortable ride over uneven surfaces, while the twin expanding shoe drum brakes provide reliable stopping power. Versatile and stylish, the C90 K3 is available in vibrant color options like Bright Red, Metallic Savannah Green, and Metallic Dark Grey, appealing to riders with varied tastes. Honda's commitment to quality and performance in this model is a testament to their legacy in the scooter segment.
Pros:
- Excellent Fuel Efficiency: With a consumption rate of 2.50 liters per 100 km, the C90 K3 is perfect for budget-conscious riders who want to maximize their mileage.
- Lightweight and Maneuverable: Weighing just 187.4 pounds, this scooter is easy to handle in urban environments, making it ideal for both new and experienced riders.
- Classic Design: The stylish aesthetics and vibrant color options will turn heads, offering a nostalgic nod to the golden age of scooters.
Cons:
- Limited Power for Highway Use: With a top speed of 49.7 mph, the C90 K3 may struggle on faster roads, making it less suitable for long highway journeys.
- Basic Features: Compared to modern scooters, the C90 K3 lacks advanced technology and conveniences such as fuel injection or electronic ignition.
- Kick Start Only: The traditional kick starter may be less convenient for some riders accustomed to electric start systems found on contemporary models.
In summary, the 1978 Honda C90 K3 is not just a scooter; it's a piece of motorcycle history that reflects Honda’s engineering prowess and commitment to quality. Whether you're an avid collector or a casual rider, this charming machine offers a delightful blend of performance, efficiency, and classic design.