I bought a 1976 McKee craft cat cay with a 70hp Johnson outboard. The
problem I am having is that after the boat runs for an hour or so and
I idle for a few mins it will die and refuse to start for about a half
hour and then today I put into the water and it would not start. Had
plenty of battery to turn the moter over and new fuel mix but it would
not start, can anyone point me in the right direction?


Thanks in adance
Bill

Fuel, Air, Compression, Spark....

Check fuel lines & filter for crud buildup or splits/holes. Check gas tank
for debris- flush out if found. Clean carb- take apart & rebuild if
necessary. Check choke for proper operation. Check spark plug- remove plug,
crank engine while holding attached plug with an insulated tool very close
to engine block- check for weak spark. If weak spark, check ignition system.
(Coil, points, wires, plugs, etc) Check cylinder compression. Check for
water (and/or antifreeze if closed system) in engine oil.




wrote in message
...
I bought a 1976 McKee craft cat cay with a 70hp Johnson outboard. The
problem I am having is that after the boat runs for an hour or so and
I idle for a few mins it will die and refuse to start for about a half
hour and then today I put into the water and it would not start. Had
plenty of battery to turn the moter over and new fuel mix but it would
not start, can anyone point me in the right direction?


Thanks in adance
Bill

In article , alarmdude9
@gmail.com says...
I bought a 1976 McKee craft cat cay with a 70hp Johnson outboard. The
problem I am having is that after the boat runs for an hour or so and
I idle for a few mins it will die and refuse to start for about a half
hour and then today I put into the water and it would not start. Had
plenty of battery to turn the moter over and new fuel mix but it would
not start, can anyone point me in the right direction?


Thanks in adance
Bill




An engine needs three things to come together in the cylinder to run.
Air, Fuel, Spark.

First thing to do is to see if the cylinder is really getting the three.

If all those are present in the cylinder you can move on to things like
compression and timing, but, until you verify you have the right
ingredient for ignition there isn't much sense in going further.

The above is, of course, assuming the engine is actually turning over
when cranked, it is out of gear, and it has received the lubrication
needed when it was running.


--
Mike G.
Heirloom Woods

www.heirloom-woods.net

One thing to check is a wire grounding out. Being that old you very well
may have some primary or secondary wires with broken insulation. I've had a
coil on a 25hp Johnson break down and cut me down to one cylinder. Took me
forever to find it. The Parts/service shops wanted to sell me first a
trigger, then a power pack when all along, it was the coil. I found it
running the motor in shallow water with the cover off, jiggling wires until
I saw the spark jump. --------just something else to try.
LD
wrote in message
...
I bought a 1976 McKee craft cat cay with a 70hp Johnson outboard. The
problem I am having is that after the boat runs for an hour or so and
I idle for a few mins it will die and refuse to start for about a half
hour and then today I put into the water and it would not start. Had
plenty of battery to turn the moter over and new fuel mix but it would
not start, can anyone point me in the right direction?


Thanks in adance
Bill

I just bought the Johnson manual for my motor, and it places great emphasis
on checking the simple things first, so time & money aren't wasted. Sounds
like your shops hadn't heard of the idea. Now...I'm gonna go jiggle wires,
because my 15 hp Johnson's running really rough, and stalling at very low
idle. New plugs, too. It's beyond me why I changed them in October 2 years
ago, and then stuck the boat in the garage. Should've changed them in the
spring.

"LD" wrote in message
...
One thing to check is a wire grounding out. Being that old you very well
may have some primary or secondary wires with broken insulation. I've had
a
coil on a 25hp Johnson break down and cut me down to one cylinder. Took
me
forever to find it. The Parts/service shops wanted to sell me first a
trigger, then a power pack when all along, it was the coil. I found it
running the motor in shallow water with the cover off, jiggling wires
until
I saw the spark jump. --------just something else to try.
LD
wrote in message
...
I bought a 1976 McKee craft cat cay with a 70hp Johnson outboard. The
problem I am having is that after the boat runs for an hour or so and
I idle for a few mins it will die and refuse to start for about a half
hour and then today I put into the water and it would not start. Had
plenty of battery to turn the moter over and new fuel mix but it would
not start, can anyone point me in the right direction?


Thanks in adance
Bill

On Mon, 22 Aug 2005 00:26:03 GMT, wrote:
Thanks for all the responses to my post. Ended up being a bad
powerpack I believe he called it.

Thanks again,
Bill