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    Is my 1987 Johnson 140 cooked?

    I've just replaced a bunch of parts on my engine: stator, regulator/rectifier, lower unit & driveshaft, rebuilt carbs with new carb kits. The engine has always run well with some stalling at idle, but otherwise very dependable. Now it is hard to start and won't stay on below 2000 rpm. I...
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    Do I have to adjust timing after replacing broken driveshaft?

    I just replaced a broken driveshaft on my 1987 Johnson 140HP V4. Since the driveshaft broke, the engine has not run well...it is hard to start and stalls below 2000 rpm. I'm thinking I have to adjust timing, adjust spark advance to correct problem. Does this sound correct to anyone? Thanks.
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    How do you identify cylinder #1?

    Hi All, I'm trying to synchronize timing on my 1987 Johnson 140 V4. The manual says to connect a timing light to the No. 1 cylinder. I think that would be the port side, top spark plug, correct? Thanks.
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    Wrong size orifices in carburetors...is this bad?

    I have a 1987 Johnson 140hp V4. It has been recently stalling so I have begun cleaning the carburetors. I noticed that the idle, intermediate, and high speed orifices have size IDs stamped on them that are different than what my parts catalog says I should have on this model engine. The...
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    1987 Johnson 140 V4 Stalling...

    Hi, I'm in need of some help analyzing why my 140hp Johnson is stalling under 2500 rpm. It runs above 2500 rpm, but will stall immediately when throttle is reduced. It used to stall at idle every now and then, but never a problem at any increased rpm beyond idle. This new stalling problem...
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    Anoyone know how to test a stator?

    I am trying to test the stator on my 1987 140hp Johnson. The manual says to check resistance using an ohmeter on the two yellow leads coming from stator. I tried that and don't show any reading at all. Am I doing the test correctly?
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    no volts on tach circuit

    I have a 1987 Johnson 140. I just installed a new regulator/rectifier thinking that would cure my tach problem - it didn't. I've determined that I have no voltage on my tachometer circuit as tested at the gray terminal of the terminal strip next to the regulator/recitifier. The manual says to...
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    How to test a rectifier/regulator?

    Hi, I am looking to test the new regulator/rectifier that I just installed on my 1987 Johnson 140 TXCLUA. The tachometer is not functioning. I have been testing voltage at the battery with the engine off and then after the engine runs for awhile..I get varied voltage. Anyone know how to test...
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    1987 Johnson 140 Rectifier/Regulator Problem

    I just installed a new rectifier/regulator on my 1987 Johnson 140 since I was not getting any charge to the battery and the tachometer stopped working. After the install, I have charge to the battery but the tach still does not work. I have checked over the wiring thoroughly and may have found...
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