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94 Johnson FS 150 fuel issues #13188386 06/17/19 05:33 PM
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BwdMan Offline OP
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I have this engine and it starts and idles good. When I try to get on plane it is like it is running out of gas. The bulb is always soft again after it has been shut off for more than 15 minutes. If I pump the bulb again it will get on plane and run good until I stop and fish. I have looked and it doesn't appear to be leaking gas anywhere. The bulb is new and the line is good. It has a water separator filter in-line and it doesn't leak either. Any idea what the reason is?

Re: 94 Johnson FS 150 fuel issues [Re: BwdMan] #13189454 06/18/19 08:41 PM
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EZ_Legend Offline
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Push in the key "choke" it when it starts bogging and if it runs normal then I would lay money down that your carburetor bowls are warped.

You can search some of my old posts and you will find I battled this for MONTHS!


2003 Legend LE21
Optimax 225
Re: 94 Johnson FS 150 fuel issues [Re: BwdMan] #13189460 06/18/19 08:47 PM
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EZ_Legend Offline
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I looked it up for you. See my "disclaimer" on the sale add. The guy that bought it spent $250 on new bowls and it ran perfect. I had just done that, so that is why I didn't revisit the bowl issue.

https://texasfishingforum.com/forum...ded-last-call-reduced-price#Post12722768


2003 Legend LE21
Optimax 225
Re: 94 Johnson FS 150 fuel issues [Re: EZ_Legend] #13189461 06/18/19 08:49 PM
Joined: Jan 2016
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EZ_Legend Offline
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Originally Posted by EZ_Legend
I looked it up for you. See my "disclaimer" on the sale add. The guy that bought it spent $250 on new bowls and it ran perfect. I had just done that, so that is why I didn't revisit the bowl issue.

https://texasfishingforum.com/forum...ded-last-call-reduced-price#Post12722768



Well... re-reading that, it doesn't give much detail. I'll send you a PM


2003 Legend LE21
Optimax 225
Re: 94 Johnson FS 150 fuel issues [Re: BwdMan] #13190222 06/19/19 04:06 PM
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MATTSUEY Online Content
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have you replaced the tank to through hull fitting fuel line? My old boat (93 Johnson 200) did exactly the same thing you are referring to,never leaked gas, but air was getting into the line,i assume from the damn ethanol, pulled the line under the deck and it wouldnt even hold for a vacuum test. runs like a top now

Re: 94 Johnson FS 150 fuel issues [Re: MATTSUEY] #13191035 06/20/19 12:21 PM
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Bucketlist Offline
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Change the pulse limiter. I have seen this work. It is a cheap fix if it works. A new one comes with a new fuel pump and is recommended to change with the pump.

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