bethany_dale
21.05.2021 20:44:44
Simrad Yachting, a leader in the design and manufacture of world-class marine navigation, autopilot, radar, communications and fishfinding systems, announced today its partnership with Maverick Boat Company. more
See full version: YAMAHA 80 HP 4-STROKE 80 HP
Simrad Yachting, a leader in the design and manufacture of world-class marine navigation, autopilot, radar, communications and fishfinding systems, announced today its partnership with Maverick Boat Company. more
Houston-based supplier Mystik informs that its lubricants will now be available in a wider range of 4-cycle FC-W marine engine oil viscosity grades, including full synthetics 10W-30 and 10W-40 as well as the new synthetic blends 25W-40 and 25W-50. more
Three Yamaha four-stroke outboards, the Yamaha V MAX SHO® VF200, the Yamaha V MAX SHO® VF225 and the Yamaha V MAX SHO® VF250 have been awarded a Consumers Digest Best Buy rating. “The V MAX SHO® family… [links]
The National Marine Manufacturers Association (NMMA) announced 52 recipients of the 2016 Marine Industry Customer Satisfaction Index (CSI) Awards for excellence in customer satisfaction. Award recipients… more
In applications where weight and space are rated highly by boaters, the new Yamaha 60hp and 80hp models are both winners. They are 4kg lighter than their four-stroke carburetted counterparts, and in profile they have almost the same dimensions as two-stroke outboards of the same power output. more
Of particular significance are the environmental aspects of these new four-stroke outboards. The EFI system ensures clean burning in virtually all operating conditions, and all four new models comply with EPA 2006 and the ultra-stringent CARB 2008 regulations. more
When at sea, the reliability of the engine is of the utmost importance. An advanced feature of the Yamaha four-strokes is the Fail Safe System. In the event that any of the sensors are in trouble, the Fail Safe System keeps the engine running to bring you home safely. [links]
Utilising Yamaha’s exclusive multi-point fuel injection system, the new 50hp, 60hp and 80hp four-stroke models deliver exceptional reliability, high performance, quick cold weather starts and smooth, comfortable running. The 50hp and 60hp models feature a four-cylinder in-line cylinder block that displaces 996ccm. The 80hp model also features a four-cylinder in-line cylinder block, but has a larger displacement of 1.596 litres. more
I recommend using Yamaha's own SAE10W30 oil in winter and SAE10W40 oil in summer. As marine four-strokes operate under entirely different load conditions to their automotive counterparts, never use an SAE20W50 car oil in the F80A, and don't use the 10W30 oil in summer.
Based on the European Ford Sierra car engine, the F80A has a belt-driven DOHC, 16 valves and four single-barrel carburettors. Long and extralong shaft versions are available.
In addition to the yearly service, I would change the oil and filter every 50 hours or six months (total parts cost about $50), particularly if a lot of trolling is done during this period. This will help reduce the build up of 'sludge' in the sump that occurs during extended trolling periods when four-strokes run at least 20° cooler than at higher revs and condensation from the water vapour created during the combustion process can bypass the piston rings. The resulting emulsified oil and water mix can block the oil pump strainer screen.
According to owner reports, Yamaha's F80A is a very reliable motor and stands up well to frequent saltwater usage.
The F80A appears straightforward to service and powerhead components such as the carbies and spin-on oil filter are easily reached. Recommended servicing intervals are every 50 hours or six months for the first two years after the initial ten-hour service, then every 100 hours or once a year. [links]
A while back I tested an F80A on a 5.2m Southwind UB520 centre-console. Spinning a 17in pitch stainless steel prop and pushing a total of 800kg, including two adults, the demo motor provided more than enough power for this hull. And with its understressed powerhead, it would have easily handled much heavier loads carried aboard this hull.
Mine was bought new three years ago to power an Avon inflatable used as a tender and has never given confidence. It has been prone to cut out at awkward moments despite having been service and some care taken over the fuelling. This year we are trying Aspen to see if this helps with fuel stability. In overall terms it’s been a frustration… Read Full Review [links]
Written on: 26/11/2020 by Greer103 (1 review written) here
Written on: 27/08/2016 by xyMurdock463 (1 review written) more
Written on: 18/05/2018 by Paxtonr159 (1 review written)
Well, the title says it all. The big trouble with this engine is the jets are thin like a human hair. And if anything gets in them; they won't run right. That includes varnished fuel. You can imagine my surprise when the motor would not start the second spring of use. And I was low on gas on my main tank! And I ran all the fuel out in the fall! The solution is to only use pristine fuel, high octane is good, non-ethylene is best, then never dry run the engine. Keep fuel in it and always… Read Full Review here
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