The propeller is the one variable which you can easily alter to regulate your boat engine’s wide-open-throttle RPM range, simply by increasing (to lower wide-open RPM) or decreasing (to raise it) pitch. The solution – Change the propeller pitch. Again, the potential for an early engine grave is obvious. Those poor metal parts will be pedaling away furiously as the engine over-revs. On the flip side – Under-propping a boat and allowing the engine to spin above the manufacturer’s recommended RPM range is just as harmful. Over-propping a boat forces the engine to work harder to attain a given RPM, raising combustion temperature and stressing internal parts like rods and bearings.Ĭ. No harm in running below recommended RPM – Some think if the engines weren’t at or over the recommended top RPM, no harm could be done. Common Mistake – When considering a boat with outboards that just barely achieve the recommended RPM range, after adding gear and filling the fuel and water tanks, the engines can no longer reach the recommended top RPM.ī. When a boat is over-propped (the propellers have too much pitch), the outboard(s) highest achievable RPM is lower than the manufacturer’s recommended wide-open-throttle RPM, which typically is between 50 RPM. These are not always the best for outboard longevity. To achieve the best performance, boat manufacturers choose propellers with a size and pitch that meet their perceived performance objectives. However, these machines need to be properly set up and maintained to sustain a life in what is essentially a hostile environment. Technological advances in manufacturing, new, innovative designs, lower emissions, new metal alloys, and better anti-corrosion coatings have made all brands generally better. Today’s outboards are a big step forward from the units the major outboard makers produced just 10 years ago. Top boat manufacturers prop their outboards with size and pitch that allows the boat to run inside the recommended limits. Outboard manufacturers have recommended RPM ranges for their specific models. Here are some important guidelines for correctly setting up and preserving an outboard’s potential life. To keep an outboard engine running to its designed potential, it needs to be properly set up and maintained. They’ll run a long time if treated right. Please check out the Tohatsu Website for specific information on the current line of motors.Ĭall or contact us for a price quote including installation, rigging, and maintenance.We’ve all seen the boat yard’s trusty barge moving boats and get around powered by an old, small outboard engine. All Tohatsu outboards we sell meet current EPA emission standards and are legal to run in all lakes and waterways in every state in the US.
#Tohatsu marine engines install
We sell, install and maintain a full selection of outboard motors from Tohatsu.
To satisfy those diverse markets, Tohatsu has researched and developed their products with the most advanced technology available today TLDI, Low Pressure Direct Fuel Injection and rock solid four-stroke designs. Tohatsu offers engines in three categories: Since then, they've produced over 4 Million units for a varied market place: Including commercial fishing, marine transport, recreation, military, law enforcement, rescue and competition racing. We offer discount pricing on the motors, and certified technicians for the rigging services including controls, cables, propeller, and gauges. Call us for a quote on your Tohatsu Repower!Ī bit about Tohatsu in 1956, Tohatsu introduced their first outboard engine. Their motors come with a 5 year factory warranty. Tohatsu has been in business for over 70 years.
We are proud to be an authorized dealer of new Tohatsu outboards from 2.5 - 250 HP.
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