Check the Condition of the Gear Lube. It will only bounce in dead-flat fresh water. Don’t set it at 2,000 or 20,000, as these are just too high, with a good meter, you will have an auto setting. For the same reason that high-speed performance boats use surface-piercing props. Copyright © 2019 IBOATS. How many Outboard Engine Hours are too many when buying 2nd hand and used outboard engines? I read on one of the bracket manufacturers websites before that a 30" set-back should allow for a 2-2 1/2" increase in the mounting height of the engine for most hulls. After properly storing for the winter, it would not start. With the outboard already bolted to the transom, the best option was installing a transom jack. The height of the boat transom dictates the size of the outboard motor. Important: The Yamaha Trailering Motor Support can be cut to size, if your outboard sits too high or you have problems with tilting your motor high enough to install this support. 7-9 and 7-10). These will leave some of us sitting at the dock, wishing instead of fishing. At the end of last season, it ran, but would not idle smoothly, and needed fiddling. Workboats, sailboats, and displacement-hulled boats fall into this category. Better Gas Mileage, Too. The way my boat is set up and sits now I can float in 7-8" of water. Okay so KENMYFAM i got the pics you wanted to show a better look at the transom. For those of us who know the quick fix solution, however, these problems are easy to take care of. If you assume engine sits low or high on transom it's a matter to visually check when at full plane at which lower leg height water flow is paasing by. I had heard 1 inch up for every 4 inches back, but someone a couple months ago on another thread had a more exact formula. The motor was too high but mounted as low as possible. I can use tabs or full down trim to stop it, but it's slower all the way around. My dad's 23 Action porpoised like hell when he put a v8 on it. My 30' Scarab does this now and I only moved my motors back 4" from where they were. If it has rocker (like the shape of a rocking chair) on the ride pad, you will never stop the bounce IMO. Praolini installed Mercury’s digital electronic controls in the Axopar. One of the most common ways an outboard can fail is when it overheats during use. Trim your outboard down and into the proper position. Run it again and have someone back there look down at the cav plate, my guess is that it is underwater at speed which also will not help your problem. Strip the insulation off any multi strand wire and twist 2 or 3 strands together. If the bow is too low, your gas mileage suffers and you won’t be able to accelerate very well. The Yamaha Trailering Motor Support can be cut to size, if your outboard sits too high or you have problems with tilting your motor high enough to install this support. & Circuit Adding more wedge pushes the top of the motor mount out and pulls in the lower unit closer to the bottom of the transom. When the water had a light chop, the hull bounced just enough to ingest high levels of air into the in-take foot. Adjusting the mounting height of an outboard on the boat transom can affect performance and … i have used strands from regular electrical wire. This also applies to gear. Jun 22, 2017, 12:26 AM #2; AirDOGGe. Boat Gel Coat - Spectrum Color. First thing to check is if the bottom of the boat is flat or nearly flat at the back where it rides. Powered by vBulletin® Version 4.2.3 Copyright © 2021 vBulletin Solutions, Inc. All rights reserved. JavaScript is disabled. How To Soundproof An Outboard Motor. IS my outboard too high? Last edited by RaisedByWolves; Jun 22, 2017 at 01:35 AM. I think the problem am having are all symptoms of the outboard being too high? LarryMc. GPS Chartplotter and Fish Finder Combo, http://www.veradoclub.com/smf/index.php?topic=137.0, http://continuouswave.com/whaler/reference/engineMountingHeight.html. As in all things relating to outboard performance, experimentation is the key to optimization and an adjustable jack-plate does make that much easier. Please help.