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TMG 398S

1978 Yamaha Unknown

Not stated Petrol 653cc
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MOT Status

Valid
Expires19 Mar 2027
Tests4 (3 pass, 1 fail)
Pass rate75%

Mileage

735 mi
Last recorded735 miles
Recorded on20 Mar 2026
Typical for 1978 Yamaha Unknown15,112 mi

Below or average mileage for this year

4 checks still locked for this Yamaha
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationTMG 398S
MakeYamaha
ModelUnknown
Year1978
ColourNot stated
Fuel typePetrol
Engine653cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

3 pass 1 fail
Pass 20 Mar 2026 735 miles

Exhaust noisy (8.1.1 (a))

Front Wheel has a slightly distorted bead rim (5.2.2 (c) (i))

Pass 15 Mar 2025 407 miles

Exhaust noisy (8.1.1 (a))

Fail 15 Mar 2025 407 miles

Exhaust noisy (8.1.1 (a))

Steering headbearing has excessive wear or free play (2.2.2 (f) (i))

Pass 19 Mar 2024 1 miles

Exhaust noisy (8.1.1 (a))

Front Wheel bearing has slight play (5.1.3 (a) (i))

Front Wheel has a slightly distorted bead rim (5.2.2 (c) (i))

Steering headbearing has slight free play (2.2.2 (f) (i))

How Reliable is the Yamaha Unknown?

Based on 20,218 MOT tests across 8,531 vehicles.

86.8%
Pass Rate
257
Miles/Year
52
Year Lifespan
8,531
On UK Roads
Full Yamaha Unknown reliability report

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TMG 398S is a 1978 Yamaha Unknown in Not stated with a 653cc petrol engine. This vehicle has been through 4 MOT tests with a personal pass rate of 75%.

Across all 1978 Yamaha Unknown models, the average MOT pass rate is 85.8% with a typical mileage of 15,112 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The Yamaha Unknown typically stays on UK roads for around 52 years. At 48 years old, this Yamaha Unknown is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of TMG 398S?

You can check the full history of TMG 398S by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was TMG 398S registered?

TMG 398S is a 1978 Yamaha Unknown, first registered on 5 January 1978.

Is TMG 398S safe to buy?

The MOT history for TMG 398S shows 4 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does TMG 398S have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on TMG 398S. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.