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20HP Mercury full throttle issues
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<blockquote data-quote="Pappy" data-source="post: 379456" data-attributes="member: 3278"><p>You know.....at this point you don't even know if you if you are dropping a cylinder or not and are being talked into changing out ignition coils!!??</p><p>For one...your engine would not idle worth a darn on one cylinder, also it would not plane or barely plane the boat on one cylinder. </p><p>Still not convinced? Buy a pair of plastic plug wire pliers and pull a spark plug lead at the RPM where the problem occurs and see if the engine changes. </p><p>If it does then it is firing on that cylinder. If it does not change then it is not running on that cylinder. Be very careful of this because it will shock the Hell out of you for one and will decelerate hard for two. Be prepared for both scenarios. </p><p>Your ohms readings are close enough by the way. Am thinking you have a good coil set.</p></blockquote><p></p>
[QUOTE="Pappy, post: 379456, member: 3278"] You know.....at this point you don't even know if you if you are dropping a cylinder or not and are being talked into changing out ignition coils!!?? For one...your engine would not idle worth a darn on one cylinder, also it would not plane or barely plane the boat on one cylinder. Still not convinced? Buy a pair of plastic plug wire pliers and pull a spark plug lead at the RPM where the problem occurs and see if the engine changes. If it does then it is firing on that cylinder. If it does not change then it is not running on that cylinder. Be very careful of this because it will shock the Hell out of you for one and will decelerate hard for two. Be prepared for both scenarios. Your ohms readings are close enough by the way. Am thinking you have a good coil set. [/QUOTE]
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20HP Mercury full throttle issues
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