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Yamaha Jupiter MX: repairs, problems and specs

The Jupiter MX 135 is a liquid-cooled 134.4 cc underbone with a 4-valve SOHC engine. Its blog-sourced figures are 9.21 kW and 12.41 Nm.

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Engine134.4 cc
Power12.4 hpat 8500 rpm
Torque12.41 Nmat 5500 rpm
Fuel tank4 litres
Seat height765 mm

Figures for the Jupiter MX 135 LC. Other years and markets can differ; check your bike's manual.

Good to know

  • 12.41 Nm at 5,500 rpm

Specifications

Engine typeliquid-cooled 4-valve SOHC

For repairs: Power converted from 9.21 kW; later models are the MX King 150.

Top repairs for the Yamaha Jupiter MX

The jobs that keep a underbone bike like this safe and running, from rider checks to workshop jobs. These are routine maintenance and common checks for this type of bike, not a ranking of faults.

Check your version first. Confirm semi-automatic versus manual clutch, brake types, chain and sprocket dimensions. Use the values in your bike's manual.

Problems to check on the Yamaha Jupiter MX

Something else is wrong? Use the diagnostics tool →

More Yamaha bikes

All Yamaha bikes →

Other underbones and step-throughs

Sources

Repair and part links are general guides for this type of bike; exact fitment is not verified. Text CC BY-SA 4.0, Transitions Lab.