Should I check the MOT history before buying a 1998 Yamaha Tdm850?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1998 Yamaha Tdm850?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1998 Yamaha Tdm850?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

How many 1998 Yamaha Tdm850 vehicles have had dangerous defects recorded?

22% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 1998 Yamaha Tdm850 reliable?

Based on MOT data from 245 vehicles, the 1998 Yamaha Tdm850 has a first-time MOT pass rate of 86%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1998 Yamaha Tdm850?

The most frequently recorded MOT issues on the 1998 Yamaha Tdm850 are: Front Tyre worn close to the legal limit (72.4% of vehicles), Rear Tyre worn close to the legal limit (61.3% of vehicles), Exhaust noisy (52.8% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 1998 Yamaha Tdm850?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Yamaha Tdm850 (1998)

245 real MOT outcomes analysed • 86% first-time pass rate

1998 Yamaha Tdm850

CarHunch analysed 245 real MOT records for the 1998 Yamaha Tdm850. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 1998 TDM850 passes its MOT first time at 86%, a solid six points above the UK average, though nearly one in five examples have recorded a dangerous defect at some point—a consideration if you're buying used. The median mileage of just 26,278 miles is remarkably low for a 26-year-old bike, suggesting these are either cherished machines or have been in storage, which may mask underlying deterioration. Owners should expect around 1.74 failures per test and 6.7 advisories, pointing to minor wear items rather than structural issues. Before purchase, request the full MOT history to check whether any dangerous defects were recorded and properly rectified—that's your best early warning system.

We have limited data for the 1998 Yamaha Tdm850 — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

86%

UK average ~80%

Around average

Dangerous (ever)

21.6%

At least once in MOT history

Check this vehicle

Avg failures / car

1.74

Over 11.7 tests on record

High

Typical mileage

26k

Middle half: 18k–34k

For context

These stats describe 245 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 245 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 72.4%

Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit · Front Tyre tread depth is below minimum requirements of 1.0mm · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Exhaust & emissions 52.8%

Exhaust noisy · Exhaust is leaking but is not excessively noisey

Lighting 34.8%

Drive chain slightly loose · Headlamp aim too low

Usually cheap to fix. Worth confirming all lights work before collecting.

Brake wear 24.2%

Rear Brake pad(s) close to minimum limit · Front Roller brake test indicates slight fluctuation of brake effort · Rear Brake disc(s) slightly worn · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Other issues 12.7%

Drive chain worn but not considered excessive

Data covers a 3-year window centred on 1998.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 245 Yamaha Tdm850 cars.

Before you buy a 1998 Yamaha Tdm850

Based on MOT data from 245 vehicles — here's what to check.

📋 Check the full MOT history. 21.6% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (100%)	244	86.1%	1.75

Colour Breakdown

Based on 2,028 Yamaha Tdm850 vehicles registered in the UK — across all years. From DVLA registration records.

Red 26.5%

538

Silver 22.3%

453

Black 19.8%

401

Yellow 13.4%

271

Blue 7.3%

148

Green 5.3%

107

Purple 2.4%

Grey 0.8%

White 0.7%

Gold 0.7%

Orange 0.5%

Multi-colour 0.3%

Mileage Distribution

Most 1998 Yamaha Tdm850 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

26,278

typical

18,286

low mileage

34,363

high mileage

Half of all 1998 Yamaha Tdm850 vehicles fall between 18,286 and 34,363 miles.

Is the mileage you're seeing normal?

✓ Under 18,286 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 18,286–34,363 miles — normal for age. This is where most 1998 Yamaha Tdm850s sit.

⚠ Over 46,390 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1998 Yamaha Tdm850 — Still on the Road

Numbers are thinning — 42% of 1998 Yamaha Tdm850s are still active.

Numbers are declining — 59 vehicles still getting MOTs in 2025 (42% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

11.7

Avg MOT tests per vehicle

1.74

Avg failures per vehicle

6.7

Avg advisories per vehicle

Other model years — Yamaha Tdm850: All Tdm850 years → Which year to buy? →

1991 1992 1993 1996 1997 1999 2000 2001

Or browse all models: Yamaha →

Compare with another model

See how the 1998 Yamaha Tdm850 stacks up against a rival.

Average reliability — agree?