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Yamaha Tdm 850 Reliability, MOT Pass Rate & Common Faults

Free Yamaha Tdm 850 car check

Is the Yamaha Tdm 850 reliable? We analysed 1,128 real MOT tests across 174 vehicles to find out.

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Data last updated: · Based on 1,128 real MOT tests
MOT Pass Rate
84.2%
Typical Mileage
29,966mi
Annual Mileage
980mi/yr
Est. Lifespan
35yrs

The Yamaha Tdm 850 is above average for reliability based on real UK MOT data. Common problems include tyre tread depth is below minimum requirements of 1.0mm, shock absorber seal failed and leaking oil and stop lamp does not illuminate immediately a brake applies. Here's everything you need to know before buying a used Yamaha Tdm 850.

Yamaha Tdm 850 Number Plates

Number plates registered to a Yamaha Tdm 850. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Yamaha Tdm 850 MOT Pass Rate by Year

How likely is a Yamaha Tdm 850 to pass its MOT? Here's the pass rate for each registration year, newest first.

84.7%
2001
86.7%
2000
80.9%
1999
86.2%
1998
85%
1997
83.3%
1996
73.8%
1995
86.6%
1994
78.4%
1992
77.3%
1991

Yamaha Tdm 850 Problems — What Goes Wrong?

The most common reasons a Yamaha Tdm 850 fails its MOT, ranked by how often they occur. Check for these problems before you buy.

Tyre tread depth is below minimum requirements of 1.0mm 18
shock absorber seal failed and leaking oil 17
Stop lamp does not illuminate immediately a brake applies 11
Roller brake test indicates a binding brake 10
Drive chain sprocket carrier worn to excess 9
Brake pad(s) less than 1.5 mm thick 8
Roller brake test indicates excessive fluctuation of brake effort 7
Exhaust is leaking and excessively noisey 6
Floor brake test indicates a binding brake 6
wheel bearings have excessive free play 6

Yamaha Tdm 850 Mileage — What's Normal?

How many miles does a typical Yamaha Tdm 850 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
353 mi/yr
Typical
980 mi/yr
Average
1,677 mi/yr
Heavy usage
2,297 mi/yr

Yamaha Tdm 850 MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Yamaha Tdm 850 year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2001 72 84.7% 6,051 23,891 48,817
2000 98 86.7% 22,484 26,445 33,481
1999 183 80.9% 15,218 27,119 40,892
1998 145 86.2% 21,292 31,415 46,717
1997 80 85.0% 22,314 31,238 37,884
1996 72 83.3% 26,710 31,758 39,768
1995 61 73.8% 30,321 37,484 42,828
1994 67 86.6% 20,478 28,140 32,940
1992 102 78.4% 18,172 24,686 37,952
1991 66 77.3% 28,562 40,657 68,040

How Long Does a Yamaha Tdm 850 Last?

Based on 174 Yamaha Tdm 850 vehicles on UK roads.

Average
16.4 years
Median
16.0 years
Estimated max lifespan
35 years

Yamaha Tdm 850 Mileage Distribution

Total mileage recorded across all Yamaha Tdm 850 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
29,966 mi
75th Percentile
41,651 mi
95th Percentile
60,752 mi
Max Recorded
321,943 mi

Best Year to Buy a Used Yamaha Tdm 850

Based on MOT pass rates across all registration years with sufficient test data.

Best year
2000

86.7% MOT pass rate from 98 tests

Year to avoid
1995

73.8% MOT pass rate from 61 tests

The best year to buy a used Yamaha Tdm 850 is 2000, which has the highest MOT pass rate at 86.7% across 98 tests. The 1995 model year has the lowest pass rate at 73.8% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Yamaha Tdm 850 Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
Yamaha Tdm 850 THIS CAR 84.2% 1,128 29,966 mi 35 yrs
Yamaha Yzf R1 86.5% 175,313 16,232 mi 28 yrs
Yamaha FZS600 85% 157,659 22,466 mi 28 yrs
Yamaha XJR1300 88.8% 107,128 16,836 mi 27 yrs
Rolls Royce Shadow 1 82.8% 1,250 51,587 mi 58 yrs

Compared to the Yamaha Yzf R1 (86.5% pass rate) and the Yamaha FZS600 (85.0% pass rate), the Yamaha Tdm 850 trails behind on MOT reliability.

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Should you buy a used Yamaha Tdm 850?

The Yamaha Tdm 850 has an overall MOT pass rate of 84.2% across 1,128 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

The most common problems on the Yamaha Tdm 850 are tyre tread depth is below minimum requirements of 1.0mm (18 recorded failures), shock absorber seal failed and leaking oil (17), and stop lamp does not illuminate immediately a brake applies (11). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.

A typical Yamaha Tdm 850 owner drives around 980 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

In terms of longevity, most Yamaha Tdm 850 models stay on UK roads for around 35 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

Yamaha Tdm 850 — Frequently Asked Questions

Is the Yamaha Tdm 850 reliable?
Based on 1,128 MOT tests, the Yamaha Tdm 850 has a 84.2% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Yamaha Tdm 850?
The most common MOT failures are tyre tread depth is below minimum requirements of 1.0mm, shock absorber seal failed and leaking oil, and stop lamp does not illuminate immediately a brake applies. Check these on any test drive.
How many miles does a Yamaha Tdm 850 do per year?
The typical Yamaha Tdm 850 does around 980 miles per year. Anything significantly above or below this is worth investigating.
How long does a Yamaha Tdm 850 last?
Most Yamaha Tdm 850 models stay on UK roads for around 35 years based on our analysis of 174 vehicles.
Should I get a vehicle check before buying a Yamaha Tdm 850?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.
What is the best year to buy a Yamaha Tdm 850?
Based on MOT pass rates, the best year to buy a used Yamaha Tdm 850 is 2000 with a 86.7% pass rate across 98 tests.