What causes Carburetor clogging and rough idle on the Yamaha Jupiter Mx 150?

Start cold, listen for rough idle or hesitation Estimated fix cost: $15-$40

What causes Worn cam chain causing engine rattle on the Yamaha Jupiter Mx 150?

Rattling noise on startup, especially when cold Estimated fix cost: $60-$120

Oil stains on front forks, bouncy front end Estimated fix cost: $30-$70

Test lights, horn, starter under full electrical load Estimated fix cost: $20-$50

Known issues to inspect before buying a used Yamaha Jupiter Mx 150. What to check and how much repairs cost.

MODERATE

Start cold, listen for rough idle or hesitation

Fix cost: $15-$40

SERIOUS

Rattling noise on startup, especially when cold

Fix cost: $60-$120

MODERATE

Oil stains on front forks, bouncy front end

Fix cost: $30-$70

MINOR

Test lights, horn, starter under full electrical load

Fix cost: $20-$50

☐Check service history and mileage

☐Cold start test for engine noise

☐Inspect chain, sprocket, and brake pads

☐Look for oil leaks under engine and forks

Decent commuter, reliable if well maintained