Single or Twin Yamaha Outboards on a Merry Fisher: What Really Changes on the Water and in the Service Bill

On the Merry Fisher models considered here, boat size largely determines whether you have one outboard or two. The 695 and 795 Series 2 use single engines, while the 895 Series 2 and 1095 are designed around twins. Singles generally cost less to purchase and maintain. Twins offer an alternative engine if one fails and greater control when manoeuvring in confined spaces. A more comfortable ride depends on the hull, loading and conditions, not simply engine count. For most UK owners, selecting the right model should come before selecting its engines. Those differences become clearer when you compare cruising performance, fuel economy, close-quarters handling and annual servicing.

Merry Fisher engine setups at a glance

These figures come from Burton Waters model listings and represent indicative performance in specified test conditions. They are not directly comparable because the hulls, loading and engines differ. The Merry Fisher 795 S2 lists a light displacement of 2,153 kg without its engine, compared with 3,680 kg for the Merry Fisher 895 Series 2. The larger 895 needs more power. The CE category describes design conditions and passenger limits; it does not guarantee safety in every forecast or sea state.

Where you really get a choice

Buying new usually means selecting the hull and then choosing among its approved engine packages. Consider berth space and passenger numbers when choosing boat size. Decide whether you need the larger 895. Used boats introduce more variation: the first-generation Merry Fisher 895 was available with single 300 hp or 350 hp outboards, while the Series 2 is configured for twin 200 hp or 250 hp Yamahas. If you want a single engine, start with the 695 or 795. If you prefer the extra cabins and space of an 895, plan for two engines and their maintenance. Our guide to the different types of motorboats helps you compare hull styles against the journeys you intend to make.

What changes on the water

Twin outboards can provide more precise low-speed control because each engine develops thrust independently. With suitable steering and controls, you can turn in a tight space, and optional Yamaha Helm Master EX joystick equipment makes docking easier on compatible 895 installations. A single-engine 795 may instead have an optional bow thruster, which helps push its bow during marina manoeuvres without providing identical handling. Picture a weekend passage from Ipswich along the Orwell towards the coast. In a sheltered estuary on a calm day, either properly powered boat can be straightforward to handle. Coming back into a berth against a crosswind and tidal stream makes the benefit of independent twin-engine thrust easier to appreciate.

Is a twin outboard safer than a single?

Twins offer useful redundancy if one engine develops an independent mechanical problem, allowing a possible slower return. But there is no guarantee of getting home: contaminated fuel, steering damage, battery problems or rough weather can affect both engines. A well-maintained single suits appropriate inland and coastal passages. Whatever your setup, carry appropriate safety equipment, including a working VHF where fitted, an anchor and means of summoning assistance. Check weather, tides, fuel and engine condition before leaving. Two engines should never replace careful planning.

Fuel use and performance

A single outboard often has advantages in weight and underwater drag compared with a twin installation, but it is not automatically more economical. Fuel consumption per mile depends on hull efficiency, load, trim, propellers and cruising speed. Compare tested figures at equivalent speeds whenever possible. A clean hull, sensible trim and correctly selected propellers can materially alter consumption during a long coastal passage. Engine size can matter just as much within the twin range. In testing, Practical Boat Owner found that twin 200 hp motors on the Series 2 used approximately 20% less fuel overall than twin 250 hp motors, while cruising speed dropped by about one knot. Read the Merry Fisher 895 versus Cap Camarat 9.0 WA review for the conditions and figures. If top speed matters little, consider the lower-powered option.

What changes in the service bill

Every outboard needs its own maintenance, so twin motors mean servicing two separate sets of mechanical components. Yamaha advises regular engine flushing, fuel-filter attention and engine and lower-unit oil changes, commonly at 100-hour intervals. Its maintenance advice directs owners to their particular manuals because intervals differ by engine, operating conditions and model year. For many recreational owners, annual servicing comes sooner than the 100-hour limit. New engines may also need an initial running-in service. Additional inspections and replacements can be scheduled at intervals such as 300 hours or three years, with further tasks at later stages. Do not assume every engine has identical 500-hour requirements. Winter servicing is especially useful if your boat spends several months without regular use.

Does a twin outboard cost double to service?

You have twice as many engines needing oil, filters, gearcase maintenance and checks, so consumable costs will typically be higher. Labour may not double because technicians can combine some preparation and inspection work, while engine size also affects parts prices. Request a written annual and longer-term maintenance quotation for each configuration before buying. Here is how the two arrangements compare in everyday ownership. Check the precise warranty when ordering. Yamaha currently offers a five-year UK leisure-use warranty on qualifying outboards, subject to its terms and servicing requirements; commercial cover is shorter. Burton Waters offers marine workshop support and a Yamaha outboard range, with technicians experienced in the marque. Ask about servicing and repairs before deciding.

Budgeting for the whole picture

The annual service is only part of the ownership budget. Engine count can affect fuel purchases, winter preparation, consumables and eventual repair or replacement costs. Our guide to the ongoing costs of owning a boat discusses wider expenses, while winterising your boat outlines the seasonal work that applies to each motor. If you are moving up from something smaller, the Merry Fisher 695 Series 2 shows how a single outboard can provide practical weekending without the expense of two engines. Our beginner's quick guide to boating is helpful for first-time owners.

Buying used, and what to check on the engines

On a second-hand Merry Fisher, engine maintenance history matters more than the number of motors alone. Ask for service invoices, engine hours, diagnostic reports, impeller changes and any previous repairs, then check the warranty status. A well-maintained single is often a better prospect than neglected twins. Ask whether the engines were serviced on schedule rather than relying only on their recorded operating hours. Our guides to new versus used boats and boat surveys explain the checks worth arranging before purchase. You can explore Jeanneau boats for sale and compare current new or used availability. If you need to sell your present vessel before upgrading, ask about a cash offer or boat brokerage to compare options.

How to choose

Think about where you will cruise, how many people will come aboard and what you can afford to run.

• Choose a single engine boat if your trips focus on sheltered rivers, estuaries and shorter coastal routes, and you favour simpler maintenance and lower engine-related costs.
• Choose twins if you regularly undertake longer coastal passages, value independent propulsion or want additional close-quarters manoeuvring control on a larger hull.
• Consider smaller twin engines if you seldom use maximum speed and want to compare initial price and real-world fuel economy before committing.

Before making a commitment, consult our first-time boat buyers guide and the basic steps to buy a boat. If your requirements eventually go beyond the Merry Fisher range, explore our Prestige yachts as a larger cruising alternative.

FAQs

Is a single outboard enough for a Merry Fisher 795?

Yes. The 795 Series 2 is designed for a single outboard of 150–250 hp. Burton Waters quotes 27 knots cruising speed and approximately 150 miles of range under stated conditions. It is capable of appropriate river and coastal cruising with a suitable skipper, equipment and passage plan. If you want two engines for redundancy and greater manoeuvring control, the larger 895 Series 2 is worth comparing.

Does the Merry Fisher 895 come with a single engine?

Not in the Series 2 configuration described here. That model uses twin Yamaha outboards, normally two 200 hp or two 250 hp engines. Earlier first-generation 895 boats could be specified with a single 300 hp or 350 hp outboard, so single-engine examples may appear for sale second-hand. Always confirm the permitted engine package for the exact hull and model year.

Do twin outboards use more fuel than a single?

They can, because a second engine adds weight and drag, but fuel economy is not determined by engine count alone. Hull design, speed, propellers and loading all matter. Practical Boat Owner recorded roughly 20% lower fuel consumption with the 895 Series 2's smaller twin 200 hp option than its twin 250 hp installation. This compares two twin setups, not singles.

How often should a Yamaha outboard be serviced?

Many Yamaha four-stroke outboards require servicing every 100 hours or annually, whichever comes first, following any initial service. Longer-interval inspections and replacements may apply at 300 hours or three years and beyond. Check the specific owner's manual, because maintenance requirements differ between models and operating conditions. Keep service records for warranty and resale.

Is a twin engine boat harder to maintain?

Maintaining twins means more work and usually a larger bill, because two engines need separate inspections, servicing and winter preparation. The underlying tasks are familiar, rather than inherently difficult, for a workshop equipped to service Yamaha outboards. Budget for preventive care and unexpected repairs.

Talk to Burton Waters about your engine setup

If you are choosing between single- and twin-engine Merry Fisher models, discuss how and where you cruise before deciding on the boat. The team at Burton Waters can explain available engine packages, compare ownership costs and arrange viewings. They can also discuss part exchange if you are moving up from another vessel. Ask about servicing quotations and equipment costs.