Yamaha YP400 Reliability, MOT Pass Rate & Common Faults
Free Yamaha YP400 car check
Is the Yamaha YP400 reliable? We analysed 5,190 real MOT tests across 496 vehicles to find out.
Got a specific Yamaha YP400? Enter the reg for a free check:
The Yamaha YP400 is above average for reliability based on real UK MOT data. Common problems include tyre tread depth is below minimum requirements of 1.0mm, brake pad(s) less than 1.5 mm thick and shock absorber seal failed and leaking oil. Here's everything you need to know before buying a used Yamaha YP400.
Yamaha YP400 Number Plates
Number plates registered to a Yamaha YP400. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Yamaha YP400 MOT Pass Rate by Year
How likely is a Yamaha YP400 to pass its MOT? Here's the pass rate for each registration year, newest first.
Yamaha YP400 Problems — What Goes Wrong?
The most common reasons a Yamaha YP400 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Yamaha YP400 Common Faults & Problems
These are the most common serious faults found on Yamaha YP400 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Yamaha YP400 Mileage — What's Normal?
How many miles does a typical Yamaha YP400 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Yamaha YP400 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Yamaha YP400 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2014 | 88 | 95.5% | 3,060 | 6,449 | 10,456 |
| 2013 | 246 | 87.0% | 9,444 | 13,148 | 19,450 |
| 2012 | 257 | 86.4% | 9,695 | 15,555 | 21,767 |
| 2011 | 265 | 89.4% | 7,831 | 13,701 | 22,315 |
| 2010 | 409 | 87.0% | 8,334 | 14,985 | 22,726 |
| 2009 | 288 | 86.5% | 10,598 | 16,544 | 24,323 |
| 2008 | 618 | 84.0% | 11,110 | 18,926 | 28,615 |
| 2007 | 495 | 87.5% | 9,991 | 14,773 | 24,998 |
| 2006 | 594 | 87.2% | 13,087 | 21,005 | 31,792 |
| 2005 | 923 | 86.2% | 10,084 | 16,771 | 27,134 |
| 2004 | 942 | 89.6% | 10,514 | 17,956 | 28,310 |
How Long Does a Yamaha YP400 Last?
Based on 496 Yamaha YP400 vehicles on UK roads.
Yamaha YP400 Mileage Distribution
Total mileage recorded across all Yamaha YP400 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Yamaha YP400
Based on MOT pass rates across all registration years with sufficient test data.
95.5% MOT pass rate from 88 tests
84.0% MOT pass rate from 618 tests
The best year to buy a used Yamaha YP400 is 2014, which has the highest MOT pass rate at 95.5% across 88 tests. The 2008 model year has the lowest pass rate at 84.0% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Yamaha YP400 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Yamaha YP400 THIS CAR | 87.3% | 5,190 | 16,408 mi | 22 yrs |
| Yamaha Yzf R1 | 86.5% | 175,313 | 16,232 mi | 28 yrs |
| Yamaha FZS600 | 85% | 157,659 | 22,466 mi | 28 yrs |
| Yamaha XJR1300 | 88.8% | 107,128 | 16,836 mi | 27 yrs |
| Renault Clio Dynamique 16V | 75.2% | 5,342 | 89,273 mi | — yrs |
Compared to the Yamaha Yzf R1 (86.5% pass rate) and the Yamaha FZS600 (85.0% pass rate), the Yamaha YP400 outperforms both on MOT reliability.
Found a Yamaha YP400 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Yamaha YP400Should you buy a used Yamaha YP400?
The Yamaha YP400 has an overall MOT pass rate of 87.3% across 5,190 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Yamaha YP400 are tyre tread depth is below minimum requirements of 1.0mm (94 recorded failures), brake pad(s) less than 1.5 mm thick (81), and shock absorber seal failed and leaking oil (49). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Yamaha YP400 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Yamaha YP400 owner drives around 1,133 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Yamaha YP400 models stay on UK roads for around 22 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.