What is your thoughts. Were waiting for Yahama to release its re-designed 9.9 h.p. 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. Adjust the engine trim for best speed.. the boat will go faster a lot flatter on plane that you might intuitively think. Were only talking about a 15-HP difference. This engine is very easy to start and runs great. 15hp Horsepower. One is initial cost. even though my parents had a 15 foot glass boat with a 35 hp motor on it. Request a Quote; Find a Dealer; Online Store; … 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. This motivates them to modify their 9.9hp to a 15hp. How To Make Your Boat Faster The horsepower-to-weight ratio of your boat plays a huge role in speed and efficiency. I use it on a 12' boat that can handle 15 Hp. Said outboard engines mark their long-time proven as the most productive units. 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 There is no one formula to get an exact number. 15" (Short) Shaft Length. You can’t compare a 6.5HP engine with a 3.5HP one, … via YouTube Capture20hp Tohatsu On a 13' Boston WhalerTop speed: 23.7 mphSpeed will vary with weight and hull design.Thanks For Watching!----- 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 … MFE. This is the easiest construction of a weedwacker outboard I could think of. I know Garry has a picture. 30 HP & 55 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. Compared to many others out there, it doesn’t cost a fortune, but you should also know that it comes with limited power. After some good use, the output goes down even more. 15 pitch. If you concerned about speed you should find a boat with at least a 50 hp. but as long as it will get on a plane it should do about 30 mph. Consider two other factors. We do experience some power differences between the two engines but not enough to risk damaging the outboard. 1 decade ago. 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. I was woundering what I could do to the motor to make it have a faster top end speed. My thought is [carburetors] may be different, or just jets. 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? Relevance. Sort by: OUT OF STOCK - EMAIL ME WHEN AVAILABLE. While the mainstream outboard manufacturers top out at 400-hp with the Mercury Racing Verado 400R and Yamaha’s new 425-hp outboard, even higher outboard power is available. 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. 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 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. Possibly a different exhaust tuning plate. Find a Dealer ... 3.5 HP to 15 HP. How can I increase the output of my 2000 Mercury 2-stroke 9.9 to 15 Hp? Honda is in great shape. What else can I … Answer Save. This 15-horse Suzuki outboard is a great powerplant for this youngster’s 14-foot skiff. Explore. 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. 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. Most 2HP-10HP outboard motors weigh in the neighborhood of 35 to 90 pounds. LEARN. $2,575.00 More Info. Compression is very strong on this motor. Generally speaking, the more outboards you purchase to produce a … We hear it all the time from boaters who are forced to use 9.9hp outboard or less at their local fishing lakes. The motor is quick but not quick enough for my liking. So a boat powered by a single 300-horsepower outboard will go faster than the same boat powered by two 150-horsepower outboards. You could start simply by replacing the … This is basically what powers up your outboard motor and therefore, … NOPTEG Hangkai Water Cooled 2 Stroke 3.5 HP Outboard Boat Motor. Save this Book to Read mariner 15 hp outboard manual free download PDF eBook at our Online Library. You can screw with the carbuerator and open up the jets, but the engine may run hot, and you may … 15 HP Outboard Motors. If you want one of the coolest 21 outboards around, this is it. we could even ski behind it. Hi! Get mariner 15 hp outboard manual free download PDF file for free from our online library Post a question at Ask-A-Member at aomci.org and see if you can raise a response about who that is. 2 Stroke vs. 4 Stroke Outboard Top Speed. E-TEC G2 Customizer; BUY. Suzuki 15 HP DF15AS3 . But the same “workhorse” status can be attributed to most any outboard in the 8- to 15-horsepower slot. 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 2021 Tohatsu 15 HP MFS15ES . outboard engine to test it along with the Suzuki 9.9 for an update to this 9.9 outboard … Boating Magazine 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. Photo by Lenny Rudow. Thanks. The gear reduction ratio is the same on both motors, also stroke, bore, and propeller. Outboard jets are about 30 percent less efficient than their prop-driven cousins…and that’s when the stinking thing is brand spankin’ new. 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. When you move up to 20HP-30 HP, you can expect you motor to weigh roughly 100 to 160 pounds. with just a couple people in it. Favourite answer. Charles. The sound sends chills up my back. If you're serious about getting a … Electronics limiting spark advance or different module. Help Me Choose; Performance Reports ; CUSTOMIZE. 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. Depending on your desire for convenience as well as your budget, you can choose an electric-start option to make starting your outboard easier. It has only burned 4 gallons of fuel in its life so it is nearly new. Certified Mercury Tech. 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. Make sure the bottom is smooth with no dings or growth. Nordic uses a narrow pad to keep it stable, yet the narrow beam ensures it can slice through anything. Salty Doug 8 Answers. C Marriner. It’s the proverbial sweet spot, serving many different types of watercraft involved in a variety of activities. IN STOCK. If you do decide to do this, which we … We have put six 5hp outboard engines to the test to find out which one offers the best performance, practicality and value for money. I have a 15 hp outboard motor on my boat, its way too slow as is, let alone having 5 people on board. Is 300 hours sign … read more. How fast will a 30 hp outboard go How fast will a 30 hp outboard go 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. Can I just change the Carburetor to a 15 Hp unit or do I need to make other modifications? I am from Russia, and i have Honda BF20D3 SHU outboard. When I asked various engineers and boat designers to quantify the difference, I got answers varying from five to 15 percent. But remember that these are all rough estimates: I just try to give you a ballpark figure. Experiment with a high pitch propeller - you'll lose low end takeoff, but increase top speed. I have already changed my prop to a stan. However, even here, it is possible to increase the number of horsepowers. Explore. Special Discount Today. As stated previously, 2 stroke motors used to be the choice among those looking for speed. HELP ME CHOOSE. 97.0 lb Weight. 5,752 satisfied customers. EVINRUDE 15 HP outboards are by far the most … I have an early 90's 25 hp mercury outboard on a 14' V-hole boat. Manual or Electric Start. Talk about an inefficient way to propel one’s self upriver! That’s why the electric outboard motors under 20hp (3hp/4hp/5hp/10hp motors) are still the mainstream in the consumer market. The hull design, sailing conditions, and your personal preference are all very important. REQUEST A QUOTE. However, 4 stroke motors have become much faster and lighter, making today’s market very competitive. We test many 9.9hp and 15 hp outboard motors on our test boat. 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 it comes to adjusting the idle state on Johnson Outboard motors, the part involved would most definitely have to be the Carburetor. 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