By coming into your e mail tackle you comply with obtain promoting messages from Yamaha Outboards. You may unsubscribe Anytime. An optimally well balanced crankshaft and labyrinth exhaust provide smooth power, though Microcomputer Ignition adjusts timing to keep up highest engine general performance, overall economy and electricity under all problems. https://yamaha4strokeoutboardmoto20753.tinyblogging.com/yamaha-25hp-outboard-for-sale-things-to-know-before-you-buy-79245144