1999 johnson 175

frontosa

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i have a 1999 175 hp johnson i had proplems with the way it was running idle rough and would bog on full throtle take of if i throtle slow some times it wont bog i took to a dealer he said i needed a new vro pump it was getting to much oil so i bought a new one with gas pump connected i changed it my self the boat still runs the same i put new plugs new wires new gas filter new water seperator what could be the problem
 

reeldutch

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Re: 1999 johnson 175

what happens if you hit the primer for 2 seconds?
 

Dhadley

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Re: 1999 johnson 175

First, you need a new dealer.

Without more info it's hard to pinpoint the problem but it alsmost sounds like it's been sitting awhile. If so I'd bet the carbs need cleaned and/or the VST needs some attention. Also make sure the gas is no more than 45 days old and you have the right Champion plugs.

This is all assuming the motor has good compression and spark. Told you we needed more info.....
 

frontosa

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Re: 1999 johnson 175

First, you need a new dealer.

Without more info it's hard to pinpoint the problem but it alsmost sounds like it's been sitting awhile. If so I'd bet the carbs need cleaned and/or the VST needs some attention. Also make sure the gas is no more than 45 days old and you have the right Champion plugs.

This is all assuming the motor has good compression and spark. Told you we needed more info.....

what is a vst it has not been sitting use every weekend gas is fresh and have the right plugs
 

frontosa

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Re: 1999 johnson 175

what is a vst gas is good plugs are correct i use boat every weekendit runs good when it gets going i get it up to 60mph its just when idle or if i take off to fast
 

kenmyfam

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Re: 1999 johnson 175

When was the last time the carb's were cleaned ???
 

frontosa

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Re: 1999 johnson 175

now when i took the cover off if i sqeeze the primer bulb the gas come out off the carbs were the air filter is i took it off is that normal
 

Dhadley

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Feb 4, 2001
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16,978
Re: 1999 johnson 175

The carbs need attention. Let's get them cleaned so we know everything is OK in that area. Remember - when a carb is running lean on fuel, that cylinder isn't getting oil either.

Describe what you mean by it has the "right" spark plugs. What plugs are you running?
 

frontosa

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Re: 1999 johnson 175

i sqeeze the ball like i always do to make it hard i sqeeze maybee twice and i see gas coming out of carbs plugs are champion ql78yc is it expensive to get carbs cleaned
 

frontosa

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Nov 20, 2009
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Re: 1999 johnson 175

i took it to another marine they said they did all the dignotics and found nothing they said they ran it in a tank and it purred like a kittin charged $175 and im still having problems im still having trouble with my motor i put new primer bulb i put new plugs i changed water fuel seperator put sea foam im gas tank and also used deep creep to spray in carbs its still running like s!!!!! does anyone know what else i can check it driving me crazy does anyone know how much a carburator rebuild cost please help
 

Seon

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Apr 23, 2008
Messages
304
Re: 1999 johnson 175

Were the shops you brought it an authorized factory trained on Johnson and Evinrude? It may make a difference on which shop you bring it to .
 
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