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S121 TNF

1998 Yamaha DT125

Black Petrol 124cc
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MOT Status

Valid
Expires13 Mar 2027
Tests16 (12 pass, 4 fail)
Pass rate75%

Mileage

25,577 mi
Last recorded25,577 miles
Recorded on14 Mar 2026
Typical for 1998 Yamaha DT12517,983 mi

Significantly above average — investigate

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

RegistrationS121 TNF
MakeYamaha
ModelDT125
Year1998
ColourBlack
Fuel typePetrol
Engine124cc

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

12 pass 4 fail
Pass 14 Mar 2026 25,577 miles

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

Pass 29 Apr 2022 25,479 miles
Pass 24 Apr 2021 25,224 miles

Slight oil leak !

Fail 24 Apr 2021 25,224 miles

Headlamp aim too low (4.1.2 (a))

Slight oil leak !

Pass 14 Jun 2019 25,763 miles

Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Front Wheel spoke slightly loose (5.2.2 (d))

Suspension arm pin, bush or joint worn but not resulting in excessive movement (5.3.4 (a) (i))

Pass 3 Mar 2016 24,337 miles
Pass 20 Aug 2012 24,390 miles
Fail 16 Aug 2012 24,388 miles

Front Front wheel spindle securing nut locking device insecure (2.3.5a)

Rear Rear wheel spindle securing nut locking device missing (2.4.A.2b)

Pass 22 Jul 2011 22,354 miles
Fail 22 Jul 2011 22,337 miles

Headlamp dipped beam affected by the operation of another lamp (1.2.2c)

Rear reflector on motorcycle obscured (1.4.1)

Pass 21 Jul 2010 18,877 miles
Pass 21 Jul 2009 18,329 miles
Pass 28 Jul 2008 18,294 miles

Front Brake pad(s) close to minimum limit (3.2.A1f(i))

Fail 28 Jul 2008 18,294 miles

Horn not working (1.7.3a)

Front Brake pad(s) close to minimum limit (3.2.A1f(i))

Pass 4 Jul 2007 17,566 miles
Pass 28 Jul 2006 16,970 miles

How Reliable is the Yamaha DT125?

Based on 51,558 MOT tests across 7,067 vehicles.

73.8%
Pass Rate
972
Miles/Year
43
Year Lifespan
7,067
On UK Roads

Top MOT Failure Points

reflector on motorcycle missing 1,275
Wheel spoke excessively loose 1,042
Stop lamp does not illuminate immediately a brake applies 926
Tyre tread depth is below minimum requirements of 1.0mm 888
Brake pad(s) less than 1.5 mm thick 837
Full Yamaha DT125 reliability report

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S121 TNF is a 1998 Yamaha DT125 in Black with a 124cc petrol engine. This vehicle has been through 16 MOT tests with a personal pass rate of 75%.

Across all 1998 Yamaha DT125 models, the average MOT pass rate is 73.0% with a typical mileage of 17,983 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Yamaha DT125 fails its MOT is reflector on motorcycle missing, accounting for 1,275 recorded failures. If you're considering buying S121 TNF, it's worth having these areas checked by a mechanic before committing.

The Yamaha DT125 typically stays on UK roads for around 43 years. At 28 years old, this Yamaha DT125 is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of S121 TNF?

You can check the full history of S121 TNF by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was S121 TNF registered?

S121 TNF is a 1998 Yamaha DT125, first registered on 26 September 1998.

Is S121 TNF safe to buy?

The MOT history for S121 TNF shows 16 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 S121 TNF 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 S121 TNF. 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.