Talk about an inefficient way to propel one’s self upriver! Charles. After some good use, the output goes down even more. Glide through the water faster with Evinrude's best-in-class acceleration, including high output outboards for top-line speed. Were waiting for Yahama to release its re-designed 9.9 h.p. HELP ME CHOOSE. Help Me Choose; Performance Reports ; CUSTOMIZE. We have put six 5hp outboard engines to the test to find out which one offers the best performance, practicality and value for money. IN STOCK. This motivates them to modify their 9.9hp to a 15hp. You could start simply by replacing the … Request a Quote; Find a Dealer; Online Store; … I have to make a choice between a 2010 Honda 15 HP outboard with 300 hours on it for 2100.00 and a 2013 Tohatsu 15 HP new for 2400.00. The gear reduction ratio is the same on both motors, also stroke, bore, and propeller. we could even ski behind it. Seven Marine (which is now owned by Volvo Penta) takes things to another level with its supercharged, 6.2-liter, small-block V-8 powerhead that makes 527, 577, or 627 horsepower, depending on the model ordered. But remember that these are all rough estimates: I just try to give you a ballpark figure. What else can I … LEARN. Nordic uses a narrow pad to keep it stable, yet the narrow beam ensures it can slice through anything. If you want one of the coolest 21 outboards around, this is it. MFE. Can I just change the Carburetor to a 15 Hp unit or do I need to make other modifications? When it comes to adjusting the idle state on Johnson Outboard motors, the part involved would most definitely have to be the Carburetor. Most 2HP-10HP outboard motors weigh in the neighborhood of 35 to 90 pounds. Make sure the bottom is smooth with no dings or growth. Re: how can i make my 1975 2 stroke 15 hp johnson go faster Just thinking, there is a guy in the Florida Chapter of the Antique Outboard Club that has a 15 that just flat-out RUNS. Save this Book to Read mariner 15 hp outboard manual free download PDF eBook at our Online Library. Special Discount Today. But the same “workhorse” status can be attributed to most any outboard in the 8- to 15-horsepower slot. with just a couple people in it. Said outboard engines mark their long-time proven as the most productive units. How can I increase the output of my 2000 Mercury 2-stroke 9.9 to 15 Hp? Running any of todays performance 250 HP engines would make this a sweet little package, it can handle a 300 if you want to step it up. $2,575.00 More Info. Explore. 2021 Tohatsu 15 HP MFS15ES . Electronics limiting spark advance or different module. The hull design, sailing conditions, and your personal preference are all very important. Boating Magazine Explore. Experiment with a high pitch propeller - you'll lose low end takeoff, but increase top speed. Answer Save. We test many 9.9hp and 15 hp outboard motors on our test boat. What is your thoughts. 5,752 satisfied customers. Buying the right 5hp outboard could be one of the most important decisions you make as a boat owner, as you don’t want your tender conking out leaving you struggling with the oars. I have a mirro craft Utility V serris boat or also known as the top of the line lakes and rivers boat at mill fleet farm the one with the live well, floor, and storage rigged up with a 9.9 yamaha, and I'm wondering if it goes 15 mph with a 9.9 how fast wi The motor is quick but not quick enough for my liking. NOPTEG Hangkai Water Cooled 2 Stroke 3.5 HP Outboard Boat Motor. but as long as it will get on a plane it should do about 30 mph. even though my parents had a 15 foot glass boat with a 35 hp motor on it. Depending on your desire for convenience as well as your budget, you can choose an electric-start option to make starting your outboard easier. When you move up to 20HP-30 HP, you can expect you motor to weigh roughly 100 to 160 pounds. There is no one formula to get an exact number. 97.0 lb Weight. Sort by: OUT OF STOCK - EMAIL ME WHEN AVAILABLE. Choose compact performance with Evinrude Portables, available in 3.5 HP, 6 HP, 9.8 HP and 15 HP outboard motors to fit boats of all sizes. Compression is very strong on this motor. That’s why the electric outboard motors under 20hp (3hp/4hp/5hp/10hp motors) are still the mainstream in the consumer market. 15" (Short) Shaft Length. This is basically what powers up your outboard motor and therefore, … You can't rebuild your hand-laid glass boat out of vacuum-bagged carbon fiber, but if you carry less gear and fewer stores aboard, your boat will be faster and more efficient. I use it on a 12' boat that can handle 15 Hp. You can screw with the carbuerator and open up the jets, but the engine may run hot, and you may … As i don't have money at the moment to get a bigger one, is there anyway i can add a few more hp cheaply and without destroying my engine? It’s the proverbial sweet spot, serving many different types of watercraft involved in a variety of activities. Adjust the engine trim for best speed.. the boat will go faster a lot flatter on plane that you might intuitively think. 15 HP Outboard Motors. Photo by Lenny Rudow. I have a 15 hp outboard motor on my boat, its way too slow as is, let alone having 5 people on board. 30 HP & 55 HP. However, even here, it is possible to increase the number of horsepowers. Salty Doug Find a Dealer ... 3.5 HP to 15 HP. Hi! If you do decide to do this, which we … Get mariner 15 hp outboard manual free download PDF file for free from our online library Outboard jets are about 30 percent less efficient than their prop-driven cousins…and that’s when the stinking thing is brand spankin’ new. This is the easiest construction of a weedwacker outboard I could think of. Consider two other factors. I was woundering what I could do to the motor to make it have a faster top end speed. We hear it all the time from boaters who are forced to use 9.9hp outboard or less at their local fishing lakes. Thanks. Certified Mercury Tech. 15 pitch. I know Garry has a picture. Favourite answer. We have fully boat tested this motor and it runs perfectly. This is a great running 15 hp Evinrude outboard boat motor that we completely serviced and restored. When I asked various engineers and boat designers to quantify the difference, I got answers varying from five to 15 percent. Possibly a different exhaust tuning plate. We tested the 15-inch shaft Mercury 9.9, Tohatsu 9.8, and Honda 9.9, each of which could also be used as a sailboat auxiliary engine. 8 Answers. outboard engine to test it along with the Suzuki 9.9 for an update to this 9.9 outboard … Is 300 hours sign … read more. Honda is in great shape. Were only talking about a 15-HP difference. As stated previously, 2 stroke motors used to be the choice among those looking for speed. This 15-horse Suzuki outboard is a great powerplant for this youngster’s 14-foot skiff. You can’t compare a 6.5HP engine with a 3.5HP one, … 15 HP: 28' 10,000 lb: 18 HP: 30' 12,000 lb: 22 HP: 32' 15,000 lb: 28 HP: 36' 18,000 lb: 34 HP: 40' That sounds about right to me. We do experience some power differences between the two engines but not enough to risk damaging the outboard. E-TEC G2 Customizer; BUY. I am from Russia, and i have Honda BF20D3 SHU outboard. I was looking at Honda outboards yesterday and noticed that the 9.9 HP model seems identical to the 15 HP model except that the 9.9 has an extra bolt in the throttle linkage which prevents it from opening completely. Relevance. However, 4 stroke motors have become much faster and lighter, making today’s market very competitive. Manual or Electric Start. 2 Stroke vs. 4 Stroke Outboard Top Speed. 1 decade ago. This engine is very easy to start and runs great. If you concerned about speed you should find a boat with at least a 50 hp. 15hp Horsepower. As with any other engine, this is the part which serves as the " combustion powerhouse" of every engine and works by blending air and fuel by employing the Bernoulli's Principle. The sound sends chills up my back. REQUEST A QUOTE. now days a 35 on a 16 foot heavy glass boat will seem under powered . As there are probably more boaters that would rather take their outboard in for a new water pump impeller, than do the easy job themselves. I have already changed my prop to a stan. One is initial cost. Compared to many others out there, it doesn’t cost a fortune, but you should also know that it comes with limited power. And if you want to speed up to 15 knots, you will probably need a 100 hp electric outboard, and that requires much more energy and battery than we can imagine and will cost a fortune. C Marriner. I have an early 90's 25 hp mercury outboard on a 14' V-hole boat. So a boat powered by a single 300-horsepower outboard will go faster than the same boat powered by two 150-horsepower outboards. via YouTube Capture20hp Tohatsu On a 13' Boston WhalerTop speed: 23.7 mphSpeed will vary with weight and hull design.Thanks For Watching!----- Post a question at Ask-A-Member at aomci.org and see if you can raise a response about who that is. Hi! EVINRUDE 15 HP outboards are by far the most … Contributing to the power of the Honda engine brand the following solutions: timely, systematic maintenance; the contents of the engine air filter in perfect condition; the installation of a reliable device that can provide the most … If you're serious about getting a … 2020 HONDA 8 HP BF8DK3LHA Outboard Motor; 2015 Nissan 8 Hp NSF8A3EF2 Outboard Motor $ 830.00; 2019 Mercury 15 HP EFI 15EH Outboard Motor $ 1,486.00; 2019 Yamaha 25 HP F25LWHC Outboard Motor $ 1,839.00; 2018 Evinrude E-TEC 30 HP E30DRSL Outboard Motor $ 1,774.00 It has only burned 4 gallons of fuel in its life so it is nearly new. If you have been trying hard to find an outboard motor that doesn’t force you to break the bank, this one should be right up your alley. My thought is [carburetors] may be different, or just jets. Suzuki 15 HP DF15AS3 . How To Make Your Boat Faster The horsepower-to-weight ratio of your boat plays a huge role in speed and efficiency. 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