With a large workshop on the Solent at Ocean Quay, Southampton, MB Marine are ideally located to service and repair your outboard motor. Easily accessible from Beaulieu, Lymington, Christchurch, Warsash, Swanwick and Hamble, we provide diagnostics and repairs using genuine approved Yamaha, Suzuki and Mercury Marine parts.

Having invested in the latest tooling and outboard diagnostic equipment, the team at MB Marine are dedicated to providing a high standard of service to ensure minimum down-time when repairs are required, providing an in-house warranty on repairs to ensure that your outboard motor performs at its safest and most efficient.

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    Latest diagnostics technology

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    High standard of service with a 3 month warranty on repairs*

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    Located on the Itchen River Southampton with easy access to Marinas & Drystacks in:

    • Southampton,
    • Beaulieu,
    • Christchurch,
    • Lymington,
    • Swanwick 
    • Hamble

*subject to terms & conditions.



We have the latest diagnostic & test equipment to diagnose & repair faults in the latest outboards &  fly-by-wire outboard control systems. With over 50 years of repairs experience, we refuse to be beaten by a fault and offer a fast, professional service to minimise your outboard motor's downtime.


Poor fuel is the most common reason for outboard motor failure. Today's petrol may not be compatible with yesterday's fuel pipe. Over time, ethanol in the petrol can cause the fuel hose to break down, internally blocking the fuel systems and causing the engine to fail. At MB Marine, we can clean and replace your engine's filters and fuel hose.Our digital injector cleaner for fuel systems and ultrasonic cleaners make cleaning your fuel systems simple and effective. 


To keep your outboard motor running at peak performance, it requires a reliable power source. Battery systems which are old or neglected with corroded leads and other wear and tear can mean that your vessel could fail at any time. Our battery testing and repairs ensure that your vessel is kept reliable and safe, avoiding costly breakdowns and replacements. 


We have invested in the specialist gearbox tooling allows us to carry out gear box repairs quickly and efficiently for modern outboards. From pressure leak testing, bent prop shaft to a full rebuild we can get you back on the water in no time. We also offer propeller repairs prop and under water damage repairs if needed.


Rebuilding power heads, valve grinding / lapping and cylinder head skimming are major procedures for any engine, especially larger outboards. Our cutting-edge diagnostic technology allows us to identify the exact cause of the fault before stripping the engine down, preventing unnecessary labour and costs.


At MB Marine, we carry out all of our repair work to the manufacturers standard level of service to maintain the validity of your warranty throughout the warranty period. Any repair work we carry out at M.B.Marine will be covered by our 'in-house' 3 month warranty. Terms & conditions apply. For more information about our 'in-house' warranty, call us on 02380 388 608 or email sales@mbmarine.co.uk.

FAQs Frequently asked questions relating to outboard motor repairs

How much will a repair cost?

The cost of a repair is dependent on the type of fault and the cost of any parts. Our labour rate is charged as £60 per hour with a minimum charge of £30. For a more detailed quote, please call 02380 388 608 or email sales@mbmarine.co.uk.

Will a repair void my manufacturer's warranty?

All of our repair work is completed to manufacturer's standards as a minimum. As an approved Yamaha, Suzuki and Mercury Marine dealer, we only used approved parts, sustaining your manufacturer's warranty.

I can't get to your workshop, can you repair my outboard motor on site?

If you are unable to reach us, our engineers can come to your marina, dry shack or home for repair work on most occasions. For more details please call 02380 388 608 or email sales@mbmarine.co.uk.