Hello I have a 1997 Johnson 175 HP. When cold starting the fuel bulb doesn't have to be pumped up at all and only need to push in the choke about 2 to 3 seconds starts right up. If your bulb is losing prime or going flat you have a fuel leak somewhere, probably float bowls or needle valve. carbs are easy to rebuild. that will make a big difference in starting.

Great video!!

I got a 1997 Johnson 200 and I'm getting a similar issue. I replaced the water pump and the thermostat but I'm still getting a constant engine alarm. It only happens when I'm getting to medium-high RPMs and it only happens when the engine is warm. I'll need to shut the engine off for a few seconds and when I crank it up again it seems to be fine for a few minutes. Idk what to do.

try running a remote tank and if you don'.t an alarm, you know motor is good and its fuel delivery.

When it starts sounds like I hit something in the water so we have to bag off an go slow we have been trying to fine the problem any answer will help what to look for thanks

Hello, I came across this video I found very interest because I'm just started having the very same problems. I have a 1990 Johnson 200. Alarm sounding at a high RPM starting over bouncing waves and now continuously at lesser R's and seeming to be bogging down on my last way in. I'll be attempting this sensor replacement and just wanted to know the part # to check and see if it matches my motor. And if there was anything else that came up or you think I need a heads up on for this. Thank you for this enlightening and helpful video.

The thing I don't understand is : Why did the alarm not go off when you had it hooked up the test tank ? If the sensor was bad, it should have still gone off with the test tank.

Having the same exact problem with my 2002 Johnson 150. I have done everything you did except the fuel pickup in the tank. So tonight I will attmept to replace this sensor. Just arrived in the mail. Hope it fixes the issue for me.

@timscales5191

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Did that alarm stop coming on after you put the part on

@timscales5191

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REPLYING TO Gom Jabber

@MrGomjabber

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@@timscales5191 I am embarrased to admit I still haven't been out yet. So busy. Hopefully soon, I will update.. Also it was easier to replace on the 150 as vro pump is right under the front airbox.

@timscales5191

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A boat mechanic told me that my problem was the fuel pump so I ordered it not the fuel pressure sensor I'm going to try the fuel pump

@thisoldoutboard

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Agree that could be it. I’ve since sold the boat but Ive also since learned that the symptoms could also be revealing the VRO fuel pump slowly giving out. In that case, I would delete the VRO and go to premix in the tank.

What is that sensor call

Will this alarm shut the motor down