A 15" shaft would put the plate 1"-2" below the surface, which most folks seem to think is about right. To work optimally, the boat's propellor must be in the best position. Look at the Water's Condition. A little research will provide. Engine: Suzuki 115hp. Also with propeller ventilation (air getting into the prop, causing. If you choose Spirit 1. But then again with all the load (i. e. me and motor) concentrated at stern it will draw deeper at transom. Here are some guidelines to keep in mind when measuring shaft length: Measure the Transom Height. Long Shaft, Extra Long Shaft, and Short Shaft Outboard MotorsThis Article is From. Thus, they can adapt to all boat designs. Boat name: Blue & Ding Dong. If you know what your doing you can also replace the transom wood with a new one cut to the correct height for the motor you want to run. Choosing a Short, Long, or Extra Long Shaft Outboard Motors.
Long and short shaft outboard motors are similar in every aspect except for size. This will help ensure it is outside the hull's water turbulence and prevent the propellor from cavitating. The 15 inch engines. How much would you value this outboard at? Hard to put it into practice? If you don't raise it you will be dragging alot more water and won't get the full power out of your motor. Oil injection, at least on the older mercs, was notoriously unreliable due to the plastic gear on the crankshaft. Considerations of the boat's design aside, it is wise to keep in mind. This length may vary by an inch or two, but round to the nearest even number to get the motor's rated shaft length. Suzuki DF6A 6hp Short or Long Shaft Outboard Engine. We had a 4hp Suzuki on our Trimaran and it was quite dependable.
This is partially because a whole bunch of the well known outboard companies buy the same Tohatsu motors for their small models and just change the color and stick their own label on them. Examples of shaft lengths: 1984 Johnson 15 hp. Before looking at when to use a long vs. short outboard on your boat, let's first look at the difference between the two. All boats are different, and the motor manufacturers produce a variety of standard lengths. There are forces involved to not Quadfather wrote:Kfedka, we've talked before... I'll be using the boat in enclosed waters only, eg rivers lakes etc. Getting the correct shaft length is crucial when getting a new outboard motor. Generally for a sib, it's a short shaft engine you'd required, basically measure from the top of the transom to the bottom of the keel, this will tell you what length of shaft is required, f-ribs, Honwaves, zodiac, and the vast majority of Sibs run short shaft. 5" above the transom bottom, while it should be flush or 1. A: The short answer is – Yes. Some say raising it somewhat helps with performance and more precise tiller control, I found on my T38 tht the 17 inch suzuki outboard worked fine just the way it was on a 15" transom Honwave T38ie.
Sent from my SM-G900F using Tapatalk. Boats, outboards designed for 25 inch transoms began to be. If you are running a twin-engine setup, then measure the same distance from each clamping plate to the bottom of the hull. The main difference between a long-shaft outboard motor and a short-shaft motor outboard is the length of the shaft. Plus the one time you really really need it, it probably won't have run for months and the bearings & bores will be dry. Easy to start after storage courtesy of a new forced lubrication and gravity-fed fuel system. I disagree with running an aux engine on 100:1. And... with all my respect, Todd - not all 2hp motors are re-branded Tohatsu. Long shaft is considered 20". Check the literature about your model boat online, and you may be surprised to find that the number is published for you. Our brand new 4hp, 5hp and 6hp models are lightweight, easy and quiet to use, incredibly reliable plus they also boast a new design and unique colour.
We also demonstrate how to measure the correct size shaft and match some brands based on their shaft length. Outboard motors can be fitted to a variety of boats, so manufacturers have standardized their engines to go on virtually anything. Cause any harm to have the lower unit a little deeper in the. The dealer says it will work, I just need to raise the ob on the transom as high as I can.
Mega Poster, I Really Need To Get Out More! But in many cases, it's a little more complicated than that alone. Repowering your boat is one of the most expensive upgrades you can make. Picking the right shaft length for your outboard is an essential step in getting the best performance from your boat. You intend to obtain your outboard motor. 6lbs and the long shaft version is 161lbs. ⚖️ Does The Boat Need A Long Shaft Or Short Shaft Outboard. Which should be perfect for a long shaft. It with a standard coupler will work, but you still need the other. 5" BELOW the transom bottom). This is the measurement between the transom and the lowest point of the boat's keel. 5" shaft is that stern is slanted (look at the photos of cherry-colored hulls in the link above). Added just above the lower unit of the 20 inch engine.
Project "Nice Shaft" Boating. For really big boats, the biggest and baddest six- or eight-cylinder outboards can have "extra-extra long" shafts up to 30 inches. Although my Yamaha 130 is autolube we also premix 100:1 (as advised by my Yamaha service provider) to give extra protection so this fuel is also OK for the auxillary. Join Date: Jul 2003. You can make it hard for someone to make off with it, but not impossible - it's not unknown for villains to cut out a big lump of transom so they can make off with the motor, but I suspect that's only going to happen for an expensive motor that's being stolen to order. Disclaimer: As an affiliate I may earn a commission on any qualifying purchases, including those from, at no extra cost to you – read more.
In this article, we will discuss the best sizing options for inflatable boats and how to measure a motor to ensure it will work for your setup. But is getting the outboard shaft height essential? An extra 45 - 50lbs hanging on the back matters a lot on a 14' boat, especially if you will be fishing alone most of the time. MMSI Number: 235900806. When modifying a design specifying a 20 inch transom, to a 15 inch. For boats equipped with a bracket, calculate the same measurement but based on the bracket and not the transom. When purchasing an outboard motor one of the most important factors to consider is whether or not you need a short, long or extra long shaft outboard motor. Measure straight down to the lowest point on the hull. Probably about 95% or so. If we run into that scenario, I would still show you the different options of motors and go over pricing, but I would also ask you to hold off and do one thing before you pull the trigger.