Johnson 1986 70 Hp stopped.

[Soddy]

My 1986Johnson 70 Hp TLCCDC ran very well during a week of boating in early July. The other day we started up and left the dock and very soon the engine stopped'. This had occurred before and a trip to the Marina found nothing wrong. We have been able to start the engine after waiting for about 20 minutes. A look at the spark plugs shows them to be wet. This engine has the VRO fuel-oil mixer. I need to correct whatever problem is causing the hard starting. I would appreciate suggestions as to the cause of what appears to be flooding. I have ordered the carburetor repair kits for the three carburetors as a start but I know from the manual and BRP parts catalog that there are many other parts that could be a problem; perhaps the hoses in the intake head or VRO. Any suggestions on how to tackle the problem of flooding would be appreciated. Soddy
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[emdsapmgr]

Often, wet plugs are a sign that they are not firing/igniting. Check for spark.

 

[flyingscott]

What way is the red primer lever facing? Primer could be leaking. What does the stator look like anything gooey running out of it?

 

[oldboat1]

You took it to an honest-to-goodness outboard mechanic at a marina? You must have had a report or discussion of testing/diagnostics before being told nothing was wrong. Are you getting carb kits because they told you carb work was needed?

Assuming the motor was run at the shop, whose fuel was used? Your tank or theirs?

 

[Soddy]

Thanks guys for your responses
!. We didn't check spark after recent stop but previous spark checks were ok.
2. The motor ran fine in early July so I think the red lever is in the r ight direction. We will check for stator gooey.
3. No. We trusted the Marina prognosis of nothing wrong; they didn't tell us to get new carb kit; that is our decision based on age of motor.
The Marina ran the motor in the water on our boat. I hope this answers your questions
We have now winterized the motor so we will now continue to study the manual and get as much information as we can related to the problem.
Your further suggestions will be appreciated.

 

[emdsapmgr]

Any chance the engine was overheating and the "hot horn" never sounded. If the engine overheats, sometimes it will lockup, and then it's a bear to get re-started until it cools off. Further, running it in an overheated condition will eventually cause damage to the powerhead.

 

[Soddy]

Guys; I have a little story to tell. My son Earl phoned brother Donald and told him about our stopped motor. Don said " Did you check the fuel line connection to the motor?. Earl checked and found the fuel line connection completely disconnected. The only explanation is that Earl in lowering the auxiliary motor in the water put his foot in the transom well near the fuel line and probably dislogded it. There was probably enough fuel in the carburetors to take us about a hundred feet from the dock.PS. The auxiliary 9.9 Johnson we wanted to test that day worked fine. Carb kits anyone. Just kidding; they will be in reserve. Thanks for your input.

 

[fireman57]

wow. That is hard to admit but good job. Didn't cost any money to reconnect the fuel line either.