70 Johnson ignition help!

[Steele329]

Hi, I am having trouble with the ignition system on my 1977 70hp johnson. I had it out three times this year no problem. then today i took it to the ramp launche and went to start got nothing. last year the start solenoid went and replaced that. thought it went again but found the fuse blown. The fuse is a buss aga 6 but from reading other forums everyone is talking about 20 amp fuses??? is this too small or should I be looking for shorts? It only seems to blow when attempting to start, but why out of no where? I must have started and stopped it 30 times in three outings and driveway starts combined. Any info is appreciated Thanks!!! Also electric choke seemed to stop working out of no where???

 

[Daviet]

Re: 70 Johnson ignition help!

The parts breakdown calls for a 20 amp fuse. Might try putting one in and see what happens. Does the choke solenoid have voltage to it?
http://www.ishopmarine.com/ishop/js...nown&isFrPG=false&forItemCode=&pCode=C0089076

 

[Steele329]

Re: 70 Johnson ignition help!

Did not even know there was a choke solenoid. Ill look into that thanks!

 

[Daviet]

Re: 70 Johnson ignition help!

#19
http://www.ishopmarine.com/ishop/js...nown&isFrPG=false&forItemCode=&pCode=C0089077

 

[boobie]

Re: 70 Johnson ignition help!

It defineatly needs a 20 amp fuse.

 

[Steele329]

Re: 70 Johnson ignition help!

Thanks everyone!!! My electric choke solenoid was shorted out! fixed it and back on the water the next day! You guys are great!!!!!!!!
Thanks again!!!

 

[Daviet]

Re: 70 Johnson ignition help!

Glad you got your problem solved.

 

[Scott Chinsota]

Re: 70 Johnson ignition help!

i'm having a very similar issue. your thread may have just fixed my problem too. thanks to all of you.