This depends on the size of your boat, but I would suggest getting two motors in case one has a problem while you are in the water.
Need to know if its 2 or 4 cycle.
No
Yes, you can use a 305 engine on some boats however, you need to provide more info on the type of boat. Putting the engine on an inboard/outboard, style boat would not be difficult at all, as long as you already have a good lower unit, same goes for an inboard. An outboard, on the other hand will be difficult, if its even possible to run a horizontal engine vertically.
To find the year model of a Mercury outboard, you need to know two things, the serial number, and the horsepower rating. HomeContactShipping/ReturnsCartOrder by phone (800) 209-9624 Monday - Friday 8:30 AM - 5:30 PM EST Boat Engine PartsOutboard Motor PartsEvinrude outboard partsJohnson outboard partsMercury outboard partsMariner outboard partsForce outboard partsChrysler outboard partsYamaha outboard partsHonda outboard partsSuzuki outboard partsNissan outboard partsTohatsu outboard parts Inboard & Sterndrive Engine PartsMercruiser sterndrive partsOMC sterndrive partsVolvo Penta marine partsCrusader Marine partsPleasurecraft Marine partsChrysler Marine inboard partsChris Craft inboard partsMore boat engine parts Boat Motor ManualsOutboard Motor Repair ManualsEvinrude outboard manualsJohnson outboard manualsMercury outboard manualsMariner outboard manualsForce outboard manualsChrysler outboard manualsYamaha outboard manualsHonda outboard manualsSuzuki outboard manualsNissan outboard manualsTohatsu outboard manuals Inboard & Sterndrive Engine ManualsMercruiser sterndrive manualsOMC sterndrive manualsVolvo Penta marine engine manualsCrusader Marine engine manualsPleasurecraft Marine engine manualsChrysler Marine engine manualsDetroit Diesel marine engine manualsPerkins engine manualsBukh marine engine manualsChris Craft engine manualsFord Lehman/Sabre Lehman engine manualsMore inboard engine manuals Boat Accessories Boat Repair ForumFree ClassifiedsPhoto GalleryFeb. 7, 2011•Bookmark Page Mercury Outboard Serial Number Guide Mercury Outboard PartsMercury Outboard Repair Manuals Boat Repair ForumFree ClassifiedsPhoto GalleryHome|Contact|Shipping/Returns|CartBoat Engine PartsBoat Motor ManualsBoat AccessoriesAbout Us | Terms of Use | Privacy PolicyMarineEngine.com, 184 Jones Drive, Brandon, VT 05733 USA© 2009 MarineEngine.com, Inc. All rights reserved.Phone: 802-247-4700 | Fax: 802-419-3055 | eMail: info@marineengine.com
Evinrude and Johnson outboards decipher the year model of the engine, by use of the engine model number.
Johnson and Evinrude outboard motors use the engine "model" number to determine the year model.
The fuel mixture for a Yamaha 40 hp 2 stroke outboard engine is 50:1, gas, oil mixture. You should use new gas when you get the engine ready for the season.
Sea foam is good for any outboard motor and you can tell the difference between tanks of gas if you stop using it. 1 ounce per gallon is reccomended by manufacturer, and that is how i mix it for my classic fifty.
Use of a synthetic oil for the Suzuki DT50 outboard engine oil injection tank is recommended. A high quality 2T oil will provide maximum protection.
For the 80 hp Mercury, you may use any brand of gear oil that has been blended for use as an outboard motor gear lube. There are many brands available other than oem, and are specially formulated for outboard use.
Inboard means that the engine is fixed inside the bottom of the boat. Outboard means the engine is fixed outside the boat, usually clamped to the stern, and can be tilted up in very shallow water, or removed from the boat when not in use for security.
The heat engine can convert internal energy of sea water if there is a sink at temperature lower than temperature of sea water. Since there is no such sink and hence a ship can not use the internal energy of sea water to operate the engine.