Honda Cb400nb (1983)
1983 Honda Cb400nb
CarHunch has 410 1983 Honda Cb400nb vehicles on record, but none have light-vehicle MOT history in our data source.
Moderate sample. 410 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.
No MOT data available for this vehicle type
The 1983 Honda Cb400nb doesn't appear in DVLA light-vehicle MOT records — it may be exempt, registered as a different vehicle class, or an import not subject to UK MOT testing. We don't have reliability stats for this specific model, but you can browse other Honda vehicles below.
Got a specific Honda Cb400nb you're checking out?
The real detail is in the individual vehicle report — MOT history, AI Hunches, mileage timeline, and defect patterns for that specific reg.
I need to flag an important caveat here: the 1983 Honda CB400NB is a motorcycle, and motorcycles are tested under a separate MOT regime (DVSA, not DVLA light-vehicle database). The numbers provided—410 vehicles, 84% pass rate, dangerous defect rates—do not represent reliable MOT data for this cohort and should not be used to assess reliability.
What we can say from general knowledge is that the CB400NB is a lightweight Japanese middleweight from the early 1980s, built for everyday commuting and known for robust engineering and low running costs. Buyers considering one today should expect to inspect fuel system condition (carburettors gum up after decades of storage), check frame and fork welds for cracks, and verify maintenance history on ignition and charging systems—factors that aren't captured in this dataset. If you're serious about one, have it inspected by a motorcycle mechanic experienced with air-cooled fours, not a car MOT station.
We have 410 1983 Honda Cb400nb vehicles on record, but none have light-vehicle MOT history in our data source.
There are a few reasons this can happen:
- Heavy commercial vehicle — trucks, buses and coaches over 3.5 tonnes are tested under the DVSA annual HGV/PSV regime, which uses a separate database not included in our data source
- Imported vehicles — vehicles registered abroad and recently brought to the UK may have no UK MOT history yet
- MOT-exempt — vehicles manufactured before 1986 qualify under the 40-year rolling exemption; some specialist and agricultural vehicles are also exempt
- Never used on public roads — some vehicles are registered but kept off-road and have never required an MOT
What tends to go wrong
Across 410 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 1983.
Before you buy a 1983 Honda Cb400nb
Based on MOT data from 410 vehicles — here's what to check.
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Check the full MOT history.
0.2% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
Get 20% off via CarHunch
Colour Breakdown
Based on 599 Honda Cb400nb vehicles registered in the UK — across all years. From DVLA registration records.
Or browse all models: Honda →
Compare with another model
See how the 1983 Honda Cb400nb stacks up against a rival.