Suzuki

Suzuki Gs650 (1981)

100 real MOT outcomes analysed • 85.9% first-time pass rate

1981 Suzuki Gs650

CarHunch analysed 100 real MOT records for the 1981 Suzuki Gs650. 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 1981 Suzuki GS650 passes its MOT first time at 85.9%, which is a solid 5.9 percentage points above the UK average—a good sign for a bike of this age. The dangerous defect rate sits at 9.0%, well below the concern threshold, so structural safety issues are uncommon in this cohort.

These machines are averaging 36,721 miles, which is reasonable for a 40-plus-year-old classic, and they're generating less than one failure per vehicle on average. With 2.3 advisories per bike, you're looking at minor wear items rather than systemic problems, so get a pre-purchase inspection focused on consumables like cables, seals, and bearings—the usual suspects on air-cooled bikes of this vintage.

We have limited data for the 1981 Suzuki Gs650 — treat the figures below as indicative rather than definitive.

⚠️ About 1 in 12 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
85.9%
UK average ~80%
Around average
Dangerous (ever)
9%
At least once in MOT history
Check this vehicle
Avg failures / car
0.91
Over 5.5 tests on record
Moderate
Typical mileage
35k
Middle half: 21k–50k
For context

These stats describe 100 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.

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What tends to go wrong

Across 100 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Exhaust & emissions 16%
Exhaust noisy · Exhaust is leaking but is not excessively noisey
Tyre wear 15.4%
Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Lighting 9.9%
Headlamp aim too low · Rear reflector on motorcycle missing · Wheel alignment slightly misaligned.
Usually cheap to fix. Worth confirming all lights work before collecting.
Suspension & steering 9.3%
Nearside Front shock absorber has light misting of stanchion · Front suspension has a slightly reduced damping effect · Steering headbearing has slight free play · …
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Brake wear 8%
Rear Brake pad(s) close to minimum limit · Front Roller brake test indicates slight fluctuation of brake effort · Rear Brake binding but not excessively
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Data covers a 3-year window centred on 1981.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 100 Suzuki Gs650 cars.

UK

Before you buy a 1981 Suzuki Gs650

Based on MOT data from 100 vehicles — here's what to check.

  • 📋 Check the full MOT history. 9% 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Mileage Distribution

Most 1981 Suzuki Gs650 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.

35,467
typical
21,205
low mileage
50,158
high mileage

Half of all 1981 Suzuki Gs650 vehicles fall between 21,205 and 50,158 miles.

Is the mileage you're seeing normal?
Under 21,205 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.
21,205–50,158 miles — normal for age. This is where most 1981 Suzuki Gs650s sit.
Over 67,713 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1981 Suzuki Gs650 — Still on the Road

Numbers are thinning — 58% of 1981 Suzuki Gs650s are still active.

15 vehicles still getting MOTs in 2021 — 58% of the peak remain.

26 15 2014 2021

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2021.
* 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

5.5
Avg MOT tests per vehicle
0.91
Avg failures per vehicle
2.3
Avg advisories per vehicle
Other model years — Suzuki Gs650: All Gs650 years → Which year to buy? →
1982

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Compare with another model

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