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. LEARN. I use it on a 12' boat that can handle 15 Hp. 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. The gear reduction ratio is the same on both motors, also stroke, bore, and propeller. So a boat powered by a single 300-horsepower outboard will go faster than the same boat powered by two 150-horsepower outboards. Explore. Favourite answer. Experiment with a high pitch propeller - you'll lose low end takeoff, but increase top speed. But the same “workhorse” status can be attributed to most any outboard in the 8- to 15-horsepower slot. Talk about an inefficient way to propel one’s self upriver! However, 4 stroke motors have become much faster and lighter, making today’s market very competitive. 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. Were waiting for Yahama to release its re-designed 9.9 h.p. Can I just change the Carburetor to a 15 Hp unit or do I need to make other modifications? Sort by: OUT OF STOCK - EMAIL ME WHEN AVAILABLE. Post a question at Ask-A-Member at aomci.org and see if you can raise a response about who that is. But remember that these are all rough estimates: I just try to give you a ballpark figure. Save this Book to Read mariner 15 hp outboard manual free download PDF eBook at our Online Library. We have fully boat tested this motor and it runs perfectly. MFE. I have a 15 hp outboard motor on my boat, its way too slow as is, let alone having 5 people on board. NOPTEG Hangkai Water Cooled 2 Stroke 3.5 HP Outboard Boat Motor. This 15-horse Suzuki outboard is a great powerplant for this youngster’s 14-foot skiff. If you do decide to do this, which we … 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. As stated previously, 2 stroke motors used to be the choice among those looking for speed. 8 Answers. This is basically what powers up your outboard motor and therefore, … IN STOCK. I have already changed my prop to a stan. If you concerned about speed you should find a boat with at least a 50 hp. If you want one of the coolest 21 outboards around, this is it. 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. This engine is very easy to start and runs great. There is no one formula to get an exact number. 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. Nordic uses a narrow pad to keep it stable, yet the narrow beam ensures it can slice through anything. Generally speaking, the more outboards you purchase to produce a … $2,575.00 More Info. Glide through the water faster with Evinrude's best-in-class acceleration, including high output outboards for top-line speed. 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? Explore. C Marriner. One is initial cost. We have put six 5hp outboard engines to the test to find out which one offers the best performance, practicality and value for money. Request a Quote; Find a Dealer; Online Store; … Possibly a different exhaust tuning plate. When I asked various engineers and boat designers to quantify the difference, I got answers varying from five to 15 percent. 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. E-TEC G2 Customizer; BUY. we could even ski behind it. Thanks. I have an early 90's 25 hp mercury outboard on a 14' V-hole boat. 5,752 satisfied customers. You can screw with the carbuerator and open up the jets, but the engine may run hot, and you may … I am from Russia, and i have Honda BF20D3 SHU outboard. This is a 2-stroke, 15" Short shaft, manual start, tiller, 75lb outboard. What else can I … 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. 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 … Manual or Electric Start. I was woundering what I could do to the motor to make it have a faster top end speed. If you're serious about getting a … 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. However, even here, it is possible to increase the number of horsepowers. Boating Magazine Most 2HP-10HP outboard motors weigh in the neighborhood of 35 to 90 pounds. We hear it all the time from boaters who are forced to use 9.9hp outboard or less at their local fishing lakes. Relevance. My thought is [carburetors] may be different, or just jets. 1 decade ago. 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. Outboard jets are about 30 percent less efficient than their prop-driven cousins…and that’s when the stinking thing is brand spankin’ new. When you move up to 20HP-30 HP, you can expect you motor to weigh roughly 100 to 160 pounds. Photo by Lenny Rudow. Make sure the bottom is smooth with no dings or growth. We do experience some power differences between the two engines but not enough to risk damaging the outboard. 2021 Tohatsu 15 HP MFS15ES . The sound sends chills up my back. outboard engine to test it along with the Suzuki 9.9 for an update to this 9.9 outboard … This is the easiest construction of a weedwacker outboard I could think of. This motivates them to modify their 9.9hp to a 15hp. Depending on your desire for convenience as well as your budget, you can choose an electric-start option to make starting your outboard easier. Get mariner 15 hp outboard manual free download PDF file for free from our online library It has only burned 4 gallons of fuel in its life so it is nearly new. That’s why the electric outboard motors under 20hp (3hp/4hp/5hp/10hp motors) are still the mainstream in the consumer market. What is your thoughts. Answer Save. but as long as it will get on a plane it should do about 30 mph. 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 2 Stroke vs. 4 Stroke Outboard Top Speed. You could start simply by replacing the … Compared to many others out there, it doesn’t cost a fortune, but you should also know that it comes with limited power. 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 After some good use, the output goes down even more. now days a 35 on a 16 foot heavy glass boat will seem under powered . Were only talking about a 15-HP difference. We test many 9.9hp and 15 hp outboard motors on our test boat. The motor is quick but not quick enough for my liking. How To Make Your Boat Faster The horsepower-to-weight ratio of your boat plays a huge role in speed and efficiency. How fast will a 30 hp outboard go How fast will a 30 hp outboard go 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. 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. Hi! Find a Dealer ... 3.5 HP to 15 HP. Honda is in great shape. REQUEST A QUOTE. Compression is very strong on this motor. 15" (Short) Shaft Length. You can’t compare a 6.5HP engine with a 3.5HP one, … Is 300 hours sign … read more. When it comes to adjusting the idle state on Johnson Outboard motors, the part involved would most definitely have to be the Carburetor. 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. Charles. 97.0 lb Weight. 15 pitch. Electronics limiting spark advance or different module. The hull design, sailing conditions, and your personal preference are all very important. Said outboard engines mark their long-time proven as the most productive units. Certified Mercury Tech. with just a couple people in it. HELP ME CHOOSE. Suzuki 15 HP DF15AS3 . 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. How can I increase the output of my 2000 Mercury 2-stroke 9.9 to 15 Hp? even though my parents had a 15 foot glass boat with a 35 hp motor on it. 30 HP & 55 HP. 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. via YouTube Capture20hp Tohatsu On a 13' Boston WhalerTop speed: 23.7 mphSpeed will vary with weight and hull design.Thanks For Watching!----- 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. This is a great running 15 hp Evinrude outboard boat motor that we completely serviced and restored. 15hp Horsepower. Hi! I know Garry has a picture. 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