Diploma in Carburation and Exhaust for Vintage Motorcycles
Online postgraduate diploma of 800 hours in carburation and exhausts for vintage motorcycles. 8 modules covering carburation principles, period carburettors, tuning, intake systems, four-stroke exhausts, two-stroke expansion chambers and dyno diagnosis, with an assigned technical tutor.
Diploma in Carburation and Exhaust for Vintage Motorcycles — studying from Ireland
Ireland has an active heritage vehicle and classic machinery community, supported by clubs, restoration workshops and specialist suppliers serving classic cars, motorcycles and agricultural equipment. Engineering skills in this area combine historical knowledge with modern techniques in fabrication, materials and diagnostics. Restoration work is often linked to heritage conservation and museum collections, and classic vehicles operate under national roadworthiness and vehicle registration rules. Professional bodies and enthusiast organisations help maintain standards and knowledge across the sector.
Fees for Ireland: €1,090 (Euro), with instalments and employer sponsorship available.
Relevant bodies in Ireland
Typical roles
Questions from Ireland
Is there a recognised professional body in Ireland for classic vehicle restoration?
Classic vehicle restoration in Ireland is largely a craft and hobby sector, supported by enthusiast clubs and heritage bodies rather than a regulated professional title. SEIUM's qualifications are private and not accredited by any national body, so they do not confer membership or formal recognition. Check the requirements of any club or body you wish to join.
Would Irish restoration businesses or employers value this qualification?
Restoration businesses in Ireland often rely on hands-on skill, reputation and portfolio work. A private online qualification may add to your CV, but employers decide for themselves whether it is relevant. Your final project can help show your capability, though there is no guarantee of any outcome.
Can I study this part-time while keeping my current commitments?
Yes, the programme is 100% online and taught in English, so you can study from home around existing commitments. Durations are 300, 800 or 1,900 hours depending on the course, so plan your schedule accordingly. Fees can be paid in instalments, and each student has an assigned technical tutor.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Explain the physical principles of carburation.
Restore period carburettors from the main manufacturers.
Tune carburation by throttle-opening range using instrumentation.
Optimise intake and filtration systems.
Design and restore four-stroke exhausts.
Calculate and make expansion chambers for two-stroke engines.
Diagnose mixture problems on the rolling road.
Who it's for
- Classic motorcycle carburation technicians.
- Vintage motorcycle restorers.
- Preparers of historic racing motorcycles.
- Craft exhaust makers.
- Dyno technicians.
- Mechanics at classic motorcycle dealers.
- Engineering or science graduates aiming to move into motorcycle restoration.
What you'll work with
- Regulation (EU) 168/2013 (approval of two- and three-wheel vehicles)
- Royal Decree 892/2013 (Spanish Historic Vehicles Regulation)
- UN/ECE Regulation No. 41 (noise emissions of motorcycles)
- Directive 2014/45/EU (periodic roadworthiness tests)
- UNE-EN 228 (petrol specification)
- Directive 2009/30/EC (fuel quality)
- FIVA Technical Code (historic vehicle authenticity criteria)
- MOTA
- EngMod2T
- Dynojet Power Core
- Lotus Engine Simulation
8 modules
1.1Venturi effect and depression1.2Stoichiometric mixture and lambda1.3Atomisation and vaporisation1.4Air density, altitude and temperature1.5Idle, transition and main circuits1.6Differences between two-stroke and four-stroke1.7Float and float-bowl level1.8Slide versus constant-depression carburettors1.9Reading the spark plug and exhaust colour1.10Practical: measuring float-bowl level
2.1Amal Monobloc and Concentric2.2Dell'Orto SS1 and PHM2.3Mikuni VM and Keihin CR2.4Bing and Solex on European motorcycles2.5Jets and needles2.6Slides and cutaway angles2.7Chokes and enrichers2.8Rebuilding worn bodies2.9Spares and reproductions2.10Workshop: stripping down and restoring an Amal Concentric
3.1Tuning by throttle-opening range3.2Selecting the main jet3.3Needle position3.4Air screw and idle mixture3.5Synchronising multiple carburettors3.6Column vacuum gauges3.7Gas analyser and wideband lambda sensor3.8Carburation with E10 petrol3.9Correction for climate and altitude3.10Lab: synchronising two carburettors
4.1Bellmouths and intake length4.2Air filters and pressure loss4.3Original airboxes4.4Manifolds and heat insulators4.5Intake resonance4.6Reed valves on two-strokes4.7Rotary valves4.8Detecting air leaks4.9Flow bench testing4.10Practical: testing a manifold on the flow bench
5.1Wave dynamics in the exhaust5.2Header pipe diameter and length5.32-into-1 and 4-into-1 headers5.4Absorption and reflection silencers5.5Racing megaphones5.6Steel, chrome and titanium5.7Replicas of period silencers5.8Restoring chrome and bluing5.9Noise limits5.10Case study: exhaust for a British single
6.1Principle of the expansion chamber6.2Diffuser cone, belly and baffle cone6.3Calculating lengths according to resonance speed6.4Expansion chamber design software6.5Manufacture from formed sheet metal6.6Exhaust gas temperature6.7Tailpipe silencers6.8Rolling-road testing6.9Interaction with carburation6.10Workshop: laying out and making an expansion chamber
7.1Rolling-road dynamometer7.2Torque and air-fuel ratio curves7.3Detonation and seizure from lean mixture7.4Over-rich running and plug fouling7.5Emissions at the roadworthiness test (ITV)7.6Stationary noise7.7Seasonal maintenance7.8Storage and stale petrol7.9Recording settings7.10Practical: tuning on the rolling road
8.1Selecting the motorcycle8.2Initial diagnosis on the dyno8.3Restoring the carburettor8.4Designing or restoring the exhaust8.5Tuning by range8.6Final power test8.7Before-and-after comparison8.8Settings sheet8.9Report and presentation8.10Final project: final review with your tutor
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. There are no fixed timetables: you progress at your own pace within each intake, so the programme fits around your job.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is MOTA, EngMod2T, Dynojet Power Core and Lotus Engine Simulation, in free, academic or evaluation versions. Testing is studied through real procedures: carburation tuning on the rolling road, synchronising multiple carburettors and stationary noise measurement. Assessment is continuous by module, plus the final project.
Standards covered: Regulation (EU) 168/2013, Royal Decree 892/2013, UN/ECE Regulation No. 41, Directive 2014/45/EU, UNE-EN 228, Directive 2009/30/EC, FIVA Technical Code.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. No university degree is required.
- An internet connection and a computer able to run the programme software.
- English sufficient to read technical standards.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 800 hours over 6–8 months. You set your own pace within each intake, and your tutor helps you plan the workload around your job.
You work with MOTA, EngMod2T, Dynojet Power Core and Lotus Engine Simulation, using free, academic or evaluation versions. Your tutor indicates the free alternative wherever one exists.
A SEIUM Institute diploma, awarded on passing the continuous assessment and the final project. It is SEIUM's own qualification, not an official state degree; its recognition depends on the programme completed and the regulations of each country.
Yes. Modules passed are recognised in a higher programme in the same area (postgraduate diploma or master's). Ask about the recognition policy when you enrol.
Prior technical training or professional experience in the sector (no university degree required), a computer able to run the software and English sufficient to read technical standards.
Start dates are set by SEIUM's faculty for each intake. Our admissions team will confirm the next available date when you apply.
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