Kymco Yup 50

Kymco Yup50
Manufacturer	Kymco
Also called	Yup, Yup 50, YUP50
Production	2005 - 2008
Class	Scooter
Engine	air-cooled, two-stroke, single cylinder, SOHC
Bore / Stroke	38.1mm x 38.1mm
Compression ratio	7.2:1
Horsepower	4.96 HP (3.7 KW) @ 7000RPM
Torque	3.69 ft/lbs (5.0 Nm) @ 6500RPM
Fuel System	28mm Keihin VE carburetor
Spark Plug	NGK BR8HSA
Battery	YUASA YTX4L-BS
Transmission	Gear box: CVT Final Drive: shaft
Suspension	Front: telescopic fork Rear: monoshock
Brakes	Front: single 200mm disc, 2-piston caliper Rear: drum
Front Tire	120/70-12
Rear Tire	130/70-12
Wheelbase	50.98 inches (1295 mm)
Length	76.42 inches (1941 mm)
Width	27.6 inches (701 mm)
Height	44.29 inches (1125 mm)
Seat Height	32.6 inches (828 mm)
Weight	213.85 pounds (97.0 Kg) (dry), 97.0 kg (wet)
Manuals	Service Manual

The Kymco Yup 50 was a air-cooled, two-stroke, single cylinder, SOHC scooter produced by Kymco between 2005 and 2008. Max torque was 3.69 ft/lbs (5.0 Nm) @ 6500 RPM. Claimed horsepower was 4.96 HP (3.7 KW) @ 7000 RPM.

Engine

The engine was a air cooled air-cooled, two-stroke, single cylinder, SOHC. A 38.1mm bore x 38.1mm stroke result in a displacement of just 49.0 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).

Drive

The bike has a CVT transmission.

Chassis

It came with a 120/70-12 front tire and a 130/70-12 rear tire. Stopping was achieved via single 200mm disc, 2-piston caliper in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equipped with a monoshock. The bike weighed just 213.85 pounds (97.0 Kg). The wheelbase was 50.98 inches (1295 mm) long.

2007 Kymco Yup 50

The 2007 MY Kymco Yup 50 has, at its heart, an air-cooled, two-stroke, 49cc, single cylinder engine paired to a continuously variable transmission (CVT) and can produce 5 horsepower and 5 Nm of torque. This entry-level machine has been designed to fit the taste of the more nostalgic among Kymco fans, and boasts 60's and 70's Vespa DNA embedded in its design. Standard features include a single disc front brake, alloy rims, an under-seat storage compartment and pillion grab handles.

2008 Kymco Yup 50

The 2008 MY Kymco Yup 50 sports an air-cooled, two-stroke, 49cc, single cylinder lump paired to a continuously variable transmission, and can produce 5 horsepower and 5 Nm of torque. As its larger bore sibling, the Yup 250, this entry-level scooter was designed for riders of all ages and experience levels. Standard features include an under-seat storage compartment, pillion grab handles, and a front disc brake.

Specifications

Make Model	Kymco YUP 50 / Sting
Year	2003 - 07
Engine Type	Two stroke, single cylinder
Displacement	49.4 cc / 3.0 cu in
Bore X Stroke	39 x 41.4 mm
Cooling System	Forced air cooled
Compression	7.2:1
Lubrication	Forced lubrication
Oil Capacity	1.3 L / 2.7 US pt
Exhaust	1-into-1
Induction	Keihin VE, 28.8 mm Ø
Ignition	CDI
Spark Plug	NGK-BR8HSA
Battery	12V, 3AH
Starting	Kick start
Max Power	YUP: 4.04 kW / 5.4 hp @ 7000 rpm Speed Limit: 2.8 kW / 3.8 hp @ 6500 rpm
Max Torque	YUP: 5.6 Nm / 0.57 kgf-m / 3.98 ft lbs @ 6500 rpm Speed Limit: 4.4 Nm / 0.45 kgf-m / 3.24 ft lbs @ 6000 rpm
Clutch	Dry, multi-disc
Transmission	Automatic
Final Drive	Shaft/cardan
Frame	Steel tubes and pressed steel boards
Front Suspension	Hydraulic fork, Ø 33 mm
Front Wheel Travel	80 mm / 3.1 in
Rear Suspension	Mono swingarm with adjustable shock absorber
Rear Wheel Travel	70 mm / 2.8 in
Front Brakes	Single 220 mm Ø disc, 2-piston caliper
Rear Brakes	Expanding drum
Wheels	Alloy, 3-spoke
Front Tire	120/70-12
Rear Tire	130/70-12
Dimensions	Length: 1940 mm / 76.4 in Width: 700 mm / 27.6 in Height : 1120 mm / 44.1 in
Wheelbase	1296 mm / 51.0 in
Seat Height	828mm / 32.6 in
Dry Weight	97 kg / 214 lbs
Fuel Capacity	5.3 L / 1.4 US gal
Colours	Light green/silver, Light blue/silver, Rose/silver