Still having trouble with my Johnson 70hp please help

DAN M VAGOS

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Just had the boat out on the lake it still has the same problem bogging down upon accelerating. Please read my last post to get filled in on everything that was done. I just got it back from the dealer again he told me that they did another fuel filter, some type of fuel strainer and also reset all linkages back to factory spec. Timing is dead on the compression is perfect The plugs are new CDI box is brand-new. He tells me he did all this for free because I've complained but in taking the boat out for a ride tonight it's the exact same problem all over again. I will say I figured out how to not make it do it. Okay so the boat starts and runs great if I stop and fish for about five 5 minutes and try to restart and take off slow it bogs down installs Will do this every single time. Today I figured out if I start it up in and just drop it in gear and go it's fine it seems to only be when I restart and try to take off slow is when the motor will just bogged down to where it stalls out and priming the fuel ball and choking it does not help. So I drove across the pond back to the dealer and he tells me I need three brand-new carburetor and possibly a Vro pump.now can someone tell me please vro pump is also a fuel pump correct ? And if it was not working the engine would not run? I'm kind of stuck and just looking for what I should do next unfortunately I am laid off right now and money is a little tight. And the close to 900 I just put into the boat and did not fix it so I kind of want to know should I just do the carburetors or should I just do a VRO . I know we're just throwing parts at it but I need it fixed and he's not willing to help me he just says you need new carbs and possibly a vro and is not willing to guarantee anything. Please give me a direction .. Thanks to all you
 

schematic

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VRO is not the issue if squeezing the ball makes no difference. Don't know which model you have, but any of the electronic components can cause this after a "heat soak" so proper diagnostics is required....
 

schematic

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VRO is not the issue if squeezing the ball makes no difference. Don't know which model you have, but any of the electronic components can cause this after a "heat soak" so proper diagnostics is required....
 

DAN M VAGOS

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Ok I understand heat soaking that does not make sense on why if I give it throttle fast the boat is fine if I take off swallow is when the boat bogs down like it's not taking the fuel.
 

Will Bark

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If it were my engine I would do a complete carb rebuild and make sure that the high speed jets are absolutely clean and clear by using a wire thru them and then the carb cleaner and air. Also, do a link and sync when you put the carbs back on. Good luck
 

Tim Frank

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Please read my last post to get filled in on everything that was done.

???????

Your last post is :
Ok I understand heat soaking that does not make sense on why if I give it throttle fast the boat is fine if I take off swallow is when the boat bogs down like it's not taking the fuel.
 

Tim Frank

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Did you read my question? You certainly didn't answer it.

You are referring to info that is not here.
How are we supposed to follow the trail?
Bread crumbs? :)
 

Will Bark

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The high speed jet is in the bowl of the carb don't try to take it out just clean it out with a wire and carb spray then compressed air. Good luck
 

DAN M VAGOS

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If you click on my name it will bring you to my posts and you can read all I have done so far on the engine.
 

Tim Frank

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If you click on my name it will bring you to my posts and you can read all I have done so far on the engine.

I did a quick check; and you are expecting people to sort through various threads all over the forum, including a story about someone wanting to sue you over the sale of your boat, just so that they can get up to speed? All because you couldn't keep this in one thread as the forum recommends?
Good luck.
 

DAN M VAGOS

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I would think that my first post on this post would be all the info to get help . I don't see why that was not enough info for some people. I was just thinking if somone needed more info they could look it up but I just I was wrong.
 
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Feb 17, 2012
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some well respected people posted on your last thread. they asked questions, asked you to check and test things that could narrow down the problem. So what can we do to help you get the motor running other than to ask the same questions. I normally don't post after I see joe has posted because if that guy can not guide you to the answer then tie a rope to it and use it as a anchor.
 

DAN M VAGOS

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I'm sorry I just can't see why bringing up posts that do not pertain to my question are talked about. My post I feel covered the problem and what was done and not done to the engine so please where am I going wrong.
 
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carbs don't normally come and go as joe pointed out especially as they have already been drained. Carbs are real simple air goes in and picks up fuel. You describe a situation where the boat will act normal as long as you don't sit at idle. Sitting at idle doesn't plug a carb up and starting a motor then going straight into gear doesn't unplug a carb. Now heat warp is possible but unlikely on 3 carbs. Vro pump problems don't normally fix themselves so the first question is "what is the primer bulb doing, is it soft. Does pumping the bulb help".
So step one: what is the primer bulb doing when you have the problem does pumping the primer help.
Step 2: does removing the cowling make a difference.
 
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DAN M VAGOS

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The primer stays firm but will take a little pump but it dose not help and hitting the chock only floods it. And I can't say the hood off helps. It always starts right back up but like it said if it take off slow it bogs and dyes out but takes off great.
 

Tim Frank

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????
Not everyone saw your previous threads....and there is presumably lots of background and history that would help anyone who is trying to help you.
I am simply saying that if it is too much trouble for you to try and keep the whole story together, some people may feel that it is too much trouble for them to run around trying to reconstruct the details from several threads.
You seem to think that is unreasonable....I don't. :)
 
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