1999 Yamaha CW50 Zuma


1999-2002 Yamaha CW50 Zuma Full Specifications

Get to know the 1999-2002 Yamaha CW50 Zuma in exquisite detail with our meticulously crafted motorcycle specifications tables.

Click or tap on a navigation pane below to find your way through our highly detailed, categorised 1999-2002 Yamaha CW50 Zuma specifications.


1999-2002 Yamaha CW50 Zuma Performance Specifications Table

Minimum turing radius1,800 mm

1999-2002 Yamaha CW50 Zuma Dimensions Specifications Table

Overall length1,470 mm
Overall width665 mm
Overall height1,050 mm
Wheelbase1,170 mm
Seat height745 mm
Ground clearance125 mm
Wet weight78 kg (fuel and fluids)

1999-2002 Yamaha CW50 Zuma Frame Specifications Table

Frame typeSteel tube underbone
Rake / Caster angle27 °
Trail length90 mm

1999-2002 Yamaha CW50 Zuma Engine Specifications Table

Engine capacity / displacement49 cc
Engine configurationAir-cooled 2-stroke, gasoline torque induction
ArrangementSingle cylinder, Vertical
Bore and Stroke40 mm x 39.2 mm
Compression ratio7.01 : 1
Intake air filtrationWet type element
Electric startElectric and kick starter

1999-2002 Yamaha CW50 Zuma Cylinder Head Specifications Table

Cylinder head warpage0.03 mm (service limit)

1999-2002 Yamaha CW50 Zuma Cylinder and Piston Specifications Table

Cylinder bore diameter39.993 mm - 40.012 mm (bore)
40.1 mm (bore service limit)
Cylinder taper0.006 mm (service limit)
Cylinder warpage0.03 mm (service limit)
Piston diameter39.952 mm - 39.972 mm (outer)
Piston diameter measurment point5.0
Piston pin diameter9.996 mm - 10.000 mm
Piston pin bore diameter10.004 mm - 10.015 mm
Top piston ring end gaps0.15 mm - 0.30 mm
Second piston ring end gaps0.15 mm - 0.30 mm

1999-2002 Yamaha CW50 Zuma Clutch and Primary Drive Specifications Table

Primary Drive typeHelical gear
Reduction ratio4.000 : 1 (52 / 13)
Clutch typeDry, centrifugal automatic

1999-2002 Yamaha CW50 Zuma Transmission Specifications Table

TypeV- belt, automatic

1999-2002 Yamaha CW50 Zuma Lubrication Specifications Table

System typeSeparate lubrication (Yamaha Autolube)
Oil capacity1.3 litres (dry fill)
Oil typeSemi-synthetic oil in accordance to the API TC TS C3 standard.

1999-2002 Yamaha CW50 Zuma Fuel System Specifications Table

Fuel typeRegular unleaded gasoline (RON 91 mini)
Fuel tank capacity4.6 litres

1999-2002 Yamaha CW50 Zuma Carburetion Specifications Table

Carburetor typePHBN 12HS
Carburetor manufacturerDELL'ORTO

1999-2002 Yamaha CW50 Zuma Ignition System Specifications Table

Spark plug typeNGK BR8HS
Spark plug gap00.5 mm - 0.7 mm

1999-2002 Yamaha CW50 Zuma Front Suspension and Steering Specifications Table

TypeTelescopic fork, Coil spring / Oil damper
Front axel travel62 mm
Spring free length202 mm

1999-2002 Yamaha CW50 Zuma Rear Suspension Specifications Table

TypeUnit swing, Coil srping / Oil damper
Rear axel travel60 mm

1999-2002 Yamaha CW50 Zuma Front Brake Specifications Table

Front brake typeDisc brake
Front disc diameter155 mm
Front disc thickness3.5 mm
Recommended front brake fluidDOT #3 or DOT #4
Front master cylinder diameter11 mm (inner)
Front caliper cylinder A diameter30 mm (inner)

1999-2002 Yamaha CW50 Zuma Rear Brake Specifications Table

Rear brake typeDrum brake, leading, trailing

1999-2002 Yamaha CW50 Zuma Wheels and Tyres Specifications Table

Front tyre size120/90 - 10 - tubeless
Recommended front tyreDUNLOP Trail max or MICHELIN reggae TL
Rear tyre size130/90 - 10 - tubeless
Recommended rear tyreDUNLOP Trail max or MICHELIN reggae TL

1999-2002 Yamaha CW50 Zuma Electrical Charging Specifications Table

Battery typeGM4-3B/YB4L-B/FB4L-B
Battery voltage rating12 volts DC
Battery capacity4 ampere hour (Ah)

1999-2002 Yamaha CW50 Zuma Electrical Equipment Specifications Table

Headlight12V 25W/25W X 2 high/low beam
Tail / stop light12V 5W/21W X 1


Learn more about motorcycles...

As we grow our data we'll be creating neat little tools to collate and display the data you want to see, how you want to see it. There may even be an opportunity to compare different bikes against any of our detailed specifications. Hint, hint.

Want to learn more about Yamaha motorcycles? Don't miss our Yamaha motorcycle library.

Are you in search of another bike manufacturer? Our library includes data from a growing range of other motorcycle manufacturers too.

If you think we’re missing something, or you've got valuable expertise working on the 1999-2002 Yamaha CW50 Zuma, please give us a shout. We're ambitious in our plans to share knowledge about everything motorcycle. So, if you've something to contribute, please don't hesitate to reach out to us here.  

Leave a Reply