Yamaha YFZ 450 (2005)

Estimated running costs and MOT pass rates from 36 MOT tests in 2024.

Annual Cost

£1,450

£121/month

MOT Pass Rate

100%

Excellent

Road Tax

£20

Estimated/year

Est. Insurance

n/a

439cc Petrol

Great Choice

100% pass rate, £1,450/year to run. 18 points above average.

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Petrol439cc21 years old36 tests

Annual Running Costs

Fuel (Petrol, 439cc)

~50 mpg

£1,175

Road Tax

Car rate estimate; vehicles are taxed differently

£20

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,450

Per month£121/mo

Per week£28/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

100% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 18 points above the average of 82% across all models in our data. It also outperforms the Yamaha brand average of 92%.

100% of MOT tests on Yamaha YFZ 450s from 2005 ended in a pass in 2024, when they were about 19 years old. That's based on 36 tests across the UK, retests included.

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How Does It Compare?

Rank among 2005 models5th of 504(top 1%)

Rank among Yamaha models5th of 17(top half)

vs average of all models+18%(82% avg)

vs 2005 models average+28%(72% avg)

vs Yamaha average+8%(92% avg)

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About the 2005 Yamaha YFZ 450

The 2005 Yamaha YFZ 450 is a commercial or specialist vehicle. Our records list a 439cc petrol engine, though engines vary between versions. 36 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 1% of all 2005 models for MOT pass rate.

2005 Yamaha YFZ 450 Fuel Costs

The modest 439cc petrol engine keeps fuel costs low, which is a real advantage for a commercial or specialist vehicle. Expect around 50 mpg in mixed driving, which works out to roughly £1,175 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2005 Yamaha YFZ 450?

Total estimated annual running cost is £1,450 (£121/month), broken down as £1,175 fuel, £20 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 100% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2005 Yamaha YFZ 450

At 21 years old, the Yamaha YFZ 450 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. Note: with only 36 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Coil Pack Failure

Medium risk

Smaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Questions about the 2005 Yamaha YFZ 450

Is the 2005 Yamaha YFZ 450 reliable?

Excellent reliability. Very few MOT failures. 100% of MOT tests on 2005 Yamaha YFZ 450s ended in a pass, from 36 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data.

How much does a 2005 Yamaha YFZ 450 cost to run?

Our estimate is £1,450 a year (£121 a month): £1,175 fuel, £20 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2005 Yamaha YFZ 450?

100% of 36 MOT tests on the 2005 Yamaha YFZ 450 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 5th of 504 models first registered in 2005 (top 1%).