[gmurray840]

If the volume of water has diminished or if there's white steam (which may look like extra exhaust), not enough water is going through the engine to cool it. You'll need to work through the next few items to find the problem. But if the cooling water is spewing out normally, check your voltage. A voltage change at the gauge, as when you turn on the instrument-panel lights, could, in some installations, cause a slight increase in the temperature reading that has nothing to do with the engine.

[HopeFlynn7x]

Any number of things can cause your engine's temperature to spike. Some are a serious threat, others are not. The worst possibilities include loss of compression because of damaged rings or valves, lubrication issues, main-bearing problems, misfiring, and more. Any of these normally require a good mechanic and can be pricey to fix. But often, a spike in temperature signals a temporary malaise that will have few long-term consequences if quickly remedied.

[TTBit]

If you've seen a gradual increase in running temperature over time, your cooling passages may be restricted. Scaling in your engine's cooling passages — including heat exchanger(s) in inboards — will occur with age unless you regularly clean them. Outboards may be more likely to suffer from corrosion or scaling within their cooling passages because these passages are typically aluminum. This will be less of an issue with outboards used in fresh water or flushed with fresh water after use. This can seldom be fixed at sea. It develops slowly, but if it's causing your engine to slightly overheat, running slowly back to the dock may be fine, watching the gauge to be sure that the temperature doesn't get too high. here

[tfoote]

Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.

[momc4312]

Mercury Marine's tiller handle assembly for the 15 and 20hp portable outboard motors won the 2018 award in the "Propulsion Parts" category at the annual International Boatbuilders' Exhibition & Conference (IBEX). This new tiller handle features several remarkable advancements to make the steering, shifting and throttle operation of portable outboards more intuitive, comfortable and responsive, and is the world's first portable outboard tiller that offers ambidextrous operation. here

[iziHost.tk]

Is your boat ready for new power? Don’t wait until your engine is no longer working. With many outboard options on the market, identifying the best engine for your current boat can be daunting. Your authorized Mercury dealer can assess your current boat, discuss typical use and loads, determine which rigging and accessories you will need, and more.

[davout]

A universal thermostat housing gasket with pre-cut, push out, tabs to suit various thermostat housing fixing bolt positions. more

[gilbertj0hn]

A universal thermostat housing gasket with pre-cut, push out, tabs to suit various thermostat housing fixing bolt positions.

[djclintoris]

The main internal thermostat push out tab gap measures approximately 48mm in diameter and there are twelve separate fixing bolt holes that can be push out for fixing hole centres between approximately 68-75mm.

[rickyfoley32]

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[richardmacdonald68]

River cruisers or power boats all have an engine of sorts, even sailing boats may have an engine too. Engines on boats are generally either 'inboard' or 'outboard'. This refers to their positioning on the boat. more

[Julia Darner]

Outboard engines are usually self contained engines that drive an inbuilt propeller. They are positioned on the back of the boat and can usually be removed more easily - usually either petrol (two stroke or four stroke) or electric. Inboard engines can be either petrol, diesel or electric these days. They are fixed inside the engine compartment within the boat and connect to a propeller shaft that goes through the hull powering a propeller.

[Koon]

There are lots of spare parts for boat engines from your regular service items such as oil and filtersand spark plugs, to more complex parts such as the exhaust system spare and ignition system spares along with boat engine manuals.

[Manjago]

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