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Re-power resource guide.
Information guide to re-powering your existing boat.

This information is provided by the staff at Warner's Dock, Inc to assist customers in making an educated choice when replacing an existing engine(s) on a boat.  We encourage phone calls (888/222-3625) or emails (nate@warnersdock.com) with your suggestions or comments.  An educated and informed consumer is the best customer any dealer can have.

Is new horsepower different then old horsepower?  NO!  One horsepower is one horsepower and has been since the concept was formulated hundreds of years ago. The common measurement when rating an engine's power. One horsepower equals 500 ft-lbs. per second, which is basically the power needed to lift 550 pounds one foot off the ground in exactly one second. (Foot per second =MPH)

Should I concern myself with horsepower or displacement?  The displacement of an engine creates the torque to accelerate the boat up on plane or to control the boat in docking maneuvers,  more displacement = stronger acceleration.  Horsepower will determine the top speed of the boat, provided that the hull has been designed to take advantage of the extra horsepower.  You should be aware of both.  On a bass boat, top speed is usually more important.  On an large fishing boat, pontoon or a runabout used for water sports getting the boat going is usually more important.  Two engines of similar displacement, regardless of horsepower will accelerate at the same rate, however potentially the larger horsepower will reach a higher top speed.  Most owners of  aluminum fishing boats, pontoons or large off shore fishing boats rarely if ever run at wide open throttle (WOT).  Paying hundreds of dollars for the extra 1 or 2 miles per hour that you never use can be very expensive on a mile per hour basis.

Should I max out the horsepower on the boat?  Sure, if you want.  Would you always buy the largest engine you can get for your tow vehicle?  Do all Dodge and Ford owners have V10 engines?  No they don’t, because not every driver needs that much power.  Size your engine to your typical uses.  Then adjust from there. 

Can I put a larger engine on the boat then the recommended maximum?  It’s a free country, you can do almost anything you want.  All NMMA certified boat manufacturers now rate their boats with the optimum engine horsepower.  The boat might structurally qualify for a larger engine but the builder has determined that the larger engine is a detriment to performance, handling and safety.  Whoever rigs the engine on the boat may be legally liable for accidents or damages caused when an over powered boat goes out of control.  It has been our experience that overpowered boats go slower on average then a properly powered boat.  They are too difficult to drive.  Follow the rated horsepower on the boat for best performance.

I want a four stroke don’t I?  Yes, no, maybe! First ask yourself if you know the difference between a four stroke and a two stroke outboard.  If you think that the term four stroke means it has some magic advantage your on the wrong path.  Keep in mind some basic ideas.  All manufacturers build high quality, dependable engines.  They all have very similar warranties which is typically three years.  All engine manufacturers meet current emissions standards on a corporate wide average for the US.   If your not sure we suggest you ask questions of your dealer.  If your dealer can not explain the advantages of each technology you should seek out a dealer that can.  Evinrude, Mercury and Yamaha all build direct injected two stroke engines.  There is a reason that this engine type is growing in popularity.   Be aware of the negative innuendo.  If your dealer bad mouths the competitive engines by saying “they are having problems” or “that technology is unproven” we suggest that you RUN to another dealer.   With out telling you the positive reasons you should be buy his engine brand,  take that as a sign that he does not have your best interest at heart.

What shaft length do I need 15”, 20” or 25”?  Click here for information on how to determine the shaft length of your boat.  Remember that the boat determines the shaft length not the operator.  All engines extend the same distance below the bottom of the boat, it is the safety of a higher transom that caused the boat builders to raise the transom height.  It is dangerous to mix the shaft length of the boat and motor.


Can I keep my controls. 
We do not encourage that customers limit their choice of engine based on the controls.  Newer engines come with newer controls.  Why buy a newer or new engine and then use the 30 year old control cables and electrical harness.  If your controls are good and will match the new engine why not, just don’t expect it to save you any money.

How do I determine the correct prop for my boat with the new engine?  Experience.  Talk to your dealer, read the manufacturers web site or go to http://www.turningpointpropellers.com/ and use their prop selector service.  Even if you don’t use a Turningpoint prop it is a very good guide.  It will get you very close.  It lists hundreds of boats and does an excellent job of explaining the process.

How do I know if my dealer is treating me fairly on the price?  Ask him to explain his pricing.  What resources did he use to determine the price?  Just like a real estate broker, good dealers have a system to determine the correct selling price.  If he explains his pricing it should make sense to you as well.  Search the internet, search the used boat sites like www.boattraderonline.com or www.usedboats.com.   They should give you a reasonable idea of the typical selling price.

What is my used engine worth?  Knowledgeable dealers will be able to explain the market to you.  Dealers that have a significant presence on the web will have a better understanding of the entire market.  Dealers that only deal locally may not be able to allow as much value because the local market may not want your engine trade.  Or you may be able to find a market where your engine is in demand and is therefore worth more.  High income markets buy new, lower income markets buy used, saltwater markets like to buy used freshwater engines and so on.   Forget the online NADA book, the information is worth just what you pay for it.  As a dealership we subscribe to a computerized system called ABOS Blue Book that is available only to dealers that pay a subscription fee.  Beyond that value it becomes a discussion between you and the selling dealer.  One good question you can ask yourself, “What would you pay for your engine?” (be truthful and realistic)

Can I finance a used outboard on my current boat?    Typically yes.  Of course it depends on your personal financial situation, the age of the boat and engine and whether your buying from a dealer or an individual.  Most dealers will offer a variety of options for you to evaluate.

Top 10 reasons why customers tell us why they would like to re-power:
Existing motor:
- has major mechanical problems and parts are not available or it is not reasonable to repair an engine of its age.
- motor requires too much maintenance.
- operating costs are too high,
-  motor is not reliable, has repeated inconvenient breakdowns.
- engine does not perform well in climatic or environmental situation (Cold, hot, salt/brackish water)
- engine does not meet local emission requirements.
- boat is under/over powered for my needs
- engine is too heavy
- desire to avoid a potential break down that could ruin a vacation
- engine is noisy
- the new motor looks HOT!

 

 

Top 10 advantages to re-power:

- Less expensive then buying a new complete rig
- Current boat fits my use better then the new ones
- my wife won’t let me buy a new rig but will let me trade motors
- low emission engines like the E-Tec keep me from getting the Carbon Monoxide headache when I back troll.
- Factory warranties can provides multi-year coverage for defects in materials and workmanship.  Boat show incentives (running Jan- March)provide up to 4 years of coverage over and above standard warranties.   New Evinrude engines have no dealer scheduled maintenance for 3 years or 300 hours to both recreational and commercial users.
- New clean technology four stroke, direct injected and E-Tec engines reduce fuel consumption 30-50% across the operating range from comparable sized older engines.  Direct injected (Opti-max, HPDI) and E-Tec engines reduce oil consumption even further.
- Most four stroke and direct injected engines meet EPA and CARB standards.   E-Tec engines meet all EPA, CARB and EU emissions standards as well as lower unregulated carbon monoxide emissions to less then even the Coast Guard suggested levels.
- New engine noise levels have been reduced by 50% or more.

Re-power with a refurbished used engine:
- considerable cost savings over new engines
- Fewer engines hours means fewer break downs
- Our used engines have been fully serviced and we provide a 30 day dealer guarantee.  (Ask for details)
- used engines may be late model four stroke or direct injected so they offer similar maintenance and emissions reductions of new engines.
- late model used engines may have the balance of the manufacturers warranty or extended service contracts that can be transferred to new owner.

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