What year Yamaha Xj550 is most reliable?

Based on MOT first-test pass rates, the 1981 Yamaha Xj550 has the highest pass rate at 82.3%, out of 166 vehicles tested.

What are the most common Yamaha Xj550 MOT failures?

The most common Yamaha Xj550 MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Yamaha Xj550 — Reliability by Year

273 vehicles · MOT data 1981–1982 · first-test pass rates

This page shows MOT first-test pass rates for each year the Yamaha Xj550 was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

1981

82.3% pass rate · 166 vehicles

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Lowest pass rate year

1982

80.8% pass rate · 107 vehicles

Year	Pass rate	Avg mileage	Vehicles
1982	80.8%	34,225 mi	107
1981	82.3%	32,508 mi	166

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