YAMAHA YFZ 450 (2005)
Running costs, reliability data, and common problems from 36 real MOT tests.
Annual Cost
£1,230
£103/month
MOT Pass Rate
100%
Excellent
Road Tax
£20
Based on CC/year
Insurance
Grp 1-8
439cc Petrol
Great Choice
100% pass rate, £1230/year to run. 18 points above average.
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Annual Running Costs
~50 mpg
Based on 439cc
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 18 points above the national average of 82%. It also outperforms the YAMAHA brand average of 92%.
At 21 years old, 100% of YAMAHA YFZ 450s from 2005 passed their MOT first time in 2026. That's based on 36 tests across the UK.
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About the 2005 YAMAHA YFZ 450
The 2005 YAMAHA YFZ 450 is a city car with a 439cc petrol engine. 36 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 1% of all 2005 cars for reliability.
2005 YAMAHA YFZ 450 Fuel Costs
The modest 439cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2005 YAMAHA YFZ 450?
Total estimated annual running cost is £1,230 (£103/month), broken down as £955 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
Based on the 2005 YAMAHA YFZ 450's fuel type, age, and engine size, these are the most likely problem areas to check.
Coil Pack Failure
Medium riskSmaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.
Rust and Corrosion
Watch outAt 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 outRubber 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 riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2005 YAMAHA YFZ 450 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| YAMAHA YFZ 450(2005) | 100% | £955 | £20 | Grp 1-8 | £1230 |
| SMART (MCC) FORTWO COUPE(2007) | 75% | £955 | £30 | Grp 1-8 | £1540+£310 |
| CHEVROLET MATIZ(2006) | 63% | £955 | £30 | Grp 1-8 | £1740+£510 |
| SMART (MCC) CITY COUPE(2003) | 72% | £955 | £30 | Grp 1-8 | £1540+£310 |
| SMART ROADSTER 80 AUTO(RHD)(2004) | 77% | £955 | £30 | Grp 1-8 | £1540+£310 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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