Should I check the MOT history before buying a 1999 Yamaha Trx850?

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 1999 Yamaha Trx850?

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 1999 Yamaha Trx850?

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.

Is the 1999 Yamaha Trx850 reliable?

Based on MOT data from 125 vehicles, the 1999 Yamaha Trx850 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 1999 Yamaha Trx850?

The most frequently recorded MOT issues on the 1999 Yamaha Trx850 are: Exhaust noisy (71.5% of vehicles), Front Tyre worn close to the legal limit (42.3% of vehicles), Rear Tyre worn close to the legal limit (41.6% 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 1999 Yamaha Trx850?

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 Trx850 (1999)

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

1999 Yamaha Trx850

CarHunch analysed 125 real MOT records for the 1999 Yamaha Trx850. 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 Mileage Distribution Still on the Road MOT Averages Compare Models

The 1999 Yamaha TRX850 passes its MOT first time in 86% of cases, a solid 6 points above the UK average, suggesting these bikes have held up well over time. However, 16.8% have recorded at least one dangerous defect during their MOT history, which is worth noting if you're buying used—a pre-purchase inspection is sensible.

These machines sit at a relatively modest 19,798 miles median, indicating many have been kept as weekend or fair-weather rides rather than daily commuters, which likely explains the better-than-average pass rate. Owners should expect around 1.46 failures and 4.2 advisories per test, typically minor wear items; before purchase, request the full MOT history and have a mechanic specifically check the brake system and lights, where the advisory count suggests wear is most common.

We have limited data for the 1999 Yamaha Trx850 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 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)

16.8%

At least once in MOT history

Check this vehicle

Avg failures / car

1.46

Over 10.4 tests on record

High

Typical mileage

20k

Middle half: 14k–29k

For context

These stats describe 125 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 125 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Exhaust & emissions 71.5%

Exhaust noisy

Tyre wear 42.3%

Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit · Rear 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.

Lighting 22.8%

Drive chain slightly loose · Rear reflector on motorcycle missing · Headlamp aim too high

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

Brake wear 16.1%

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

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

Suspension & steering 9.4%

Offside Front shock absorber has light misting of stanchion · Front wheel bearings are slightly rough

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Other issues 7.1%

Drive chain worn but not considered excessive

Data covers a 3-year window centred on 1999.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 125 Yamaha Trx850 cars.

Before you buy a 1999 Yamaha Trx850

Based on MOT data from 125 vehicles — here's what to check.

📋 Check the full MOT history. 16.8% 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

Mileage Distribution

Most 1999 Yamaha Trx850 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.

19,798

typical

13,546

low mileage

28,753

high mileage

Half of all 1999 Yamaha Trx850 vehicles fall between 13,546 and 28,753 miles.

Is the mileage you're seeing normal?

✓ Under 13,546 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.

✓ 13,546–28,753 miles — normal for age. This is where most 1999 Yamaha Trx850s sit.

⚠ Over 38,816 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1999 Yamaha Trx850 — Still on the Road

Numbers are thinning — 69% of 1999 Yamaha Trx850s are still active.

38 vehicles still getting MOTs in 2025 — 69% of the peak remain.

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

10.4

Avg MOT tests per vehicle

1.46

Avg failures per vehicle

4.2

Avg advisories per vehicle

Other model years — Yamaha Trx850: All Trx850 years → Which year to buy? →

1996 1997 1998

Or browse all models: Yamaha →

Compare with another model

See how the 1999 Yamaha Trx850 stacks up against a rival.

Average reliability — agree?