Product names, coloring and graphics may also differ. Stars fine when warmed up, can I infer from this is doesn't start easy when cold? Get a second opinion before you get too upset. Yamalube 4M and 2M are purposely formulated with special anti-corrosion agents to help combat and prevent the corrosive effects of this environment. It must rev higher to create higher speeds, rather than just changing gears like your car. We got this motor with a engine noise so we disassembled it and found a bad crank bearing, we installed new bearings a good used crankshaft. The oil level check procedure for your Yamaha four-stroke outboard is a bit different than the procedure for your car.
Use caution when filling or adding oil. Product names, coloring and graphics may also differ. I gets a little suspicious. You said your father has had Yamahas and has had great luck. . It includes the right type and amount of Yamalube marine oil, a Genuine Yamaha oil filter and a drain gasket.
This has trim and tilt and electric start. Powerful Hole Shot The Composite Intake Manifold is a lightweight, compact design, making these engines very versatile. With their high quality and advanced formulations, all Yamalube 4M and 2M oils meet or surpass all of these requirements. A leak down test measures the percentage of air leaking past the piston and rings, this is more accurate than a compression test. The way I figure it is this.
Coming in a number of variations for specs like transom length and propeller type, this model made it possible to outfit a wide variety of different boat types around the world with 4-stroke engines. Yamalube 4M and 2M marine engine oils contain specific anti-wear additives to account for this. Yamaha engineers refused to accept that assumption, however. Yamaha 4-stroke outboard motors are designed and engineered with the same dedication to durability, reliability, light weight and compactness that Yamaha 2-strokes have long been famous for. Furthermore, by reducing the size and weight of many parts, changing the layout and using innovative new ideas and technologies throughout the engine, Yamaha succeeded in creating a 4-stroke outboard motor with higher output in a smaller package than anyone had thought possible before. Allow the wax to dry to a white film and buff with an orbital buffer. On the other hand, saltwater will begin to crystallize if its temperature is raised above 170° F, potentially causing blockage in the cooling passages and leading to engine overheat and possible damage.
Replace the oil and screw the crankcase drain bolt back into place with a torque wrench. Performed a leak down test and found all cylinders were at less than 3% which is excellent. Using the correct oil and filter at the recommended intervals is the single most important thing you can do for your outboard. A simple rebuild of one cylinder should be child's play. See of you get the same song from mechanic numba two. Bye forcing the air intake route past the warm side of the motor exhaust manifold side it apparently warms it and condenses it?.
The typical loads placed on your outboard are much heavier than on your automobile, having to overcome a much greater amount of drag to create performance. And when it comes to quiet, powerful and reliable performance, nothing beats the F150. With subsequent development, the F9. Your Yamaha outboard is vastly different from your automotive engine; so avoid regular automotive engine oils. Spray fogging oil into the holes, grease the threads of the spark plugs, put the plugs back in and torque them to the level specified for the model. Yamaha 4-stroke outboard development,a history of technological innovation and environmental measures Born in 1984 - the first Yamaha 4-stroke outboard motor After winning a strong reputation as a builder of reliable 2-stroke outboard motors, Yamaha outboards began to win recognition as one of the world's leading brands thanks to the quality of its technological innovations to make engine performance more eco-friendly.
It is always cheaper to rebuild a 2 stroke with maybe the exception of an hpdi! I believe that to recondition a piston and cylinder would be a lot less than that. Loss of compression could be caused by a burned valve, a burned head gasket, or a broken ring. Prior to this trend, Yamaha had already developed and marketed its first 4-stroke outboard motor, the F9. Winterizing a Yamaha four-stroke four-cycle outboard motor isn't nearly as much trouble as keeping a New Year's' resolution and, if done properly, it ensures that your motor will be ready for the next boating season with a minimum of fuss, muss and bother. Use a motor oil specifically formulated for the rigors of the marine environment, like Yamalube ® 4M for four-stroke outboards, and Yamalube ® 2M for two-stroke outboards.
The specifications of outboards shown on this website may be changed or production discontinued without notice. One 22ft charter cat I looked at a while back with twin 4 stroke 100 yams had just this recurring problem on the starboard motor. I mean aren't them pistons pretty much fireproof?. The lineups of outboard models offered differ by country or area. ©2018 Yamaha Motor Corporation, U.