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Suzuki FZ50 1978—1983
Suzuki FS50 1980—1981

I have put some FZ50 Youdy/Rascal/Suzy and FS50 info on this page. The page is still under construction. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

Suzuki FY50

Suzuki FZ50

The Suzuki FZ50 was a 50cc noped (a moped with no pedals) made by Suzuki from 1978 to 1983. This bike was marketed under a few different names, FZ50 Youdy/Rascal/Suzy and FS50 in different countries, mechanically the same with slight changes in trim. Although it has small wheels, it falls into the ”noped” category due to its bare tube frame and use of pegs, as opposed to a scooter floorboard.

As opposed to the popular Suzuki FA50, the FZ50 didn't sell as well, mainly because it doesn't qualify as a moped in all countries. The stock engine generates 3.2 hp, and most go over 30mph with no modifications. They are arguably better bikes than the FA50 due to the higher horsepower rating, bigger carburetor, and the two speed automatic transmission. The transmission holds 900ml of 10w-40. Second gear engages at about 10mph.

The FZ50 features oil injection, a crude gas gauge on the tank, front and rear racks, plastic legshields, and 12" x 3.00 5-star mag wheels. The ride is very smooth thanks to leading-link front suspension and a beefy rear mono-shock. Colors available were orange, red, black and blue.

The FZ50 piston, cylinder, head, and exhaust are interchangeable with the Suzuki FA50. Therefore a few aftermarket parts do exist, namely the Simonini expansion chamber exhaust, and a few larger bore, 45mm piston (59cc) kits exist. The FZ50 came equipped with a 14mm Mikuni VM round slide carburetor.


Suzuki FS50

Running from 1980 to 1991 this sweet little two-stroke moped was also known as the shuttle. Weighing just 46kg the reed valve 3.2hp engine had a two speed transmission, and was a brisk performer by the standards of the moped competition of the day, most only giving around 2hp.

Throughout the years Suzuki changed the moped very slightly, primarily by using different coloring schemes.

The quality of the bike is generally good. Both the paint and chrome finishes are excellent. The bike is however not heavy duty by any measure. It is very common to find them with broken, missing, or improvised foot pegs. It features a pressed steel frame as opposed to the tube frame commonly found on nopeds. The luggage rack is very large for the size of bike and can carry a nice load. The fenders are plastic and the rear fender is often broken or missing.

The FA50 features 14" rims and a mono shock rear suspension. The rear rim seems to be prone to bending if abused. They came with a 6 volt electrical system in all years of production. The 1980 models had some minor differences from all other years. They did not have turn signals, the headlight mounted lower on the bike under a front rack, the speedometer pod was a different design, and the gas tank had a gauge on it.

The FA50 engine is a 49cc case inducted 2-stroke. It has an oil injection system that seems to be reliable but as in all older bikes run the injection at your own risk. The engine runs remarkably smooth and is extremely reliable. Though the top speed of FA50s tends to be less than spectacular (28mph) it has excellent low end torque.

Probably the most notable feature of the FA50s is the enclosed drive line. The Drive line consists of a centrifugal clutch, chain, and reduction gear, all of which is enclosed and bathed in oil. This feature makes the drive train very low maintenance and should last the life of the bike. The muffler tends to be a bit on the flimsy side but should last if not abused. The FA50 came equipped with a Mikuni VM12SH carburetor with a #77.5 main jet.

The brake must be applied for the starter to function. (This can be easily bypassed.)





Suzuki 1978More Suzuki models from 1978
1978 Suzuki year code: R
  
I don't know very much more of this model. What I do know that the FZ50 is a scooter with an air-cooled 49cc two-stroke engine and an automatic, 2-speed transmission. The model has several nicknames, Youdy in Japan, Suzy and Rascal in some countries. The model was introduced in Japan as 1978 year's model.

See even the Japanese sales brochure above (click to enlarge).

 
Suzuki FY50 Youdy FZ50 Youdy 1978
Overall Length: 1 650 mm (65.0 in)
Overall Width: 665 mm (26.2 in)
Overall Height: 990 mm (39.0 in)
Wheelbase: 1 120 mm (44.1 in)
Dry Weight: 59 kg (130 lbs)
Engine type: Air-cooled 49 cc 1-cylinder, 2-stroke. 3,2 hp. Automatic, 2-speed transmission.

Click on the image for larger format.


Suzuki 1980More Suzuki models from 1980
1980 Suzuki year code: T
 
Another Suzuki scooter, FS50, introduced in 1980, used the same mechanics as the FZ50 but had different wheels and its own style. According to Roy Bacon's book of Suzuki the FZ50 was not introduced in the United Kingdom until 1980, simultaneously with the new FS50 ”noped”.
 
Suzuki FY50 Youdy FS50 1980
Engine type: Air-cooled 49 cc 1-cylinder 2-stroke. 3,2 hp. Automatic, 2-speed transmission.

Click on the image for larger format.
Here's even larger picture.
Suzuki FY50 Youdy FZ50 Rascal 1980
Overall Length: 1 650 mm (65.0 in)
Overall Width: 665 mm (26.2 in)
Overall Height: 990 mm (39.0 in)
Wheelbase: 1 120 mm (44.1 in)
Ground Clearance: 120 mm (4.7 in)
Dry Weight: 59 kg (130 lbs)
Engine type: Air-cooled 49 cc 1-cylinder, 2-stroke. 3,2 hp. Automatic, 2-speed transmission.

Click on the image for larger format.
Suzuki FY50 Youdy FZ50 Youdy 1980
Overall Length: 1 650 mm (65.0 in)
Overall Width: 665 mm (26.2 in)
Overall Height: 990 mm (39.0 in)
Wheelbase: 1 120 mm (44.1 in)
Ground Clearance: 120 mm (4.7 in)
Dry Weight: 59 kg (130 lbs)
Engine type: Air-cooled 49 cc 1-cylinder, 2-stroke. 3,2 hp. Automatic, 2-speed transmission.

Click on the image for larger format.
Here's even larger picture.

'80 FZ50 Rascal

1980 FZ50 Rascal. Click to enlarge. A detail from a 1980 FZ50 magazine ad. Here's even the rest of the advertisement.


Suzuki 1981More Suzuki models from 1981
1980 Suzuki year code: X
 
The FZ50 was introduced in Denmark in 1981 as FZ50 Suzi. Apparently the Danish mopeds/scooterettes were restricted to maximum speed of 30 km/h, the power restriction was made by narrowing the inlet to 13 mm. Even the Danish model featured 12-inch wheels, baggage holder at front and rear, turning signals, stop rear light, low/high beam, mirror, low oil pressure indicator, fuel gauge etc.
 


1981 Suzuki FZ50 specifications (Denmark, restricted power output)
Overall length:  
Overall width:  
Overall height:  
Wheelbase:  
Seat height:  
Ground clearance:  
Dry weight: < 60 kg (132 lbs)
Engine type: Air-cooled single cylinder 2-stroke
Piston displacement: 49 cc
Bore x stroke: 41 mm x 37,8 mm
Compression ratio: 6,9 :1
Carburettor: 12 mm
Needle adjustement: 3rd mark from the top
Standard jet : #55
Restriction in the inlet: 13,0 mm
Maximum power output:  
Maximum torque:  
Air cleaner type:  
Ignition type: CDI, 6V / 45W
Battery: 6N4B-2A
Spark plug type: NGK BP4HS
Lubrication system: Suzuki CCI
Clutch: Automatic centrifugal clutch
Transmission: 2-speed
Front brake: Internal expanding
Rear brake: Internal expanding
Front tyre dimension: 3.00-12
Rear tyre dimension: 3.00-12
Fuel tank capacity incl. reserve: 4,5 liter
Gearbox oil capacity: 0,5 liter
Starting frame number: FZ50-163000
Available colors: Red, Blue, Black
Maximum speed: 30 km/h





More: Suzuki FS50 & FZ50

More: Suzuki FY50


Sources: Moped Army etc.

More: All Suzuki models

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