1973 65HP Johnson Starting Hard

[JeepinAndy]

Hi,

My 73' 65 HP Johnson is starting really hard when its cold. Not sure what the deal is - it almost sounds like its flooded. When I turn it over I have to turn it over for 20 - 25 seconds before it starts. It sounds like it wants to start but it just doesn't happen easily.

Any thoughts? My first instinct tells me carb but could this be ignition also? BTW when it is warmed up it starts on the first half crank.

Thanks,
Andy

 

[tashasdaddy]

Re: 1973 65HP Johnson Starting Hard

read this, are you following the procedure? http://forums.iboats.com/showthread.php?t=225510

 

[JeepinAndy]

Re: 1973 65HP Johnson Starting Hard

Thanks for the response.

Yes I have been following that procedure. I have the key operated choke as mentioned in the procedure. I believe the choke is working. It sounds like a carb issue but as I said I really am not sure.

How easy should the motor start when cold? I am assuming it is like any other motor and should start within 3-5 seconds of turning it over am I wrong?

Are there any common things I can check and eliminate right away?

 

[tashasdaddy]

Re: 1973 65HP Johnson Starting Hard

check your compression and spark on all 3 cold. report your compression readings.

http://forums.iboats.com/showthread.php?t=299680

 

[countvlad]

Re: 1973 65HP Johnson Starting Hard

check your compression and spark on all 3 cold. report your compression readings.

http://forums.iboats.com/showthread.php?t=299680

if compression good do a decarb....

 

[JeepinAndy]

Re: 1973 65HP Johnson Starting Hard

OK will do.

Any suggestions on what to use for decarb? SeaFoam?

 

[JeepinAndy]

Re: 1973 65HP Johnson Starting Hard

check your compression and spark on all 3 cold. report your compression readings.

http://forums.iboats.com/showthread.php?t=299680

Compression is exactly 125 across all 3 cylinders