I was wondering if anyone could help us figure out what is going on with our 75 Johnson stinger. We have had the whole thing rebuilt last spring. Well we took it out this past week and everything was just great ran nice and smooth not one problem. Started right up and we were flyin over the lake. Then Sean took it out on Thursday and said they would start up right away but wouldn't run at top speed. When he was idle it sounded great and as soon as they took off nothing.. Anyways we went out again this time I was with him and again same thing, so we called our boat mech. and he said prob. needed a new spark plug, so we ran over to the walmart and picked up 3 new ones and gaped them as the last once were and put them back in. Went back to the lake and started right up and again no speed just putting around. So while we were waiting to load up the boat all of the sudden it went dead and we couldn't turn it on or anything. We are now trying to go through and pin point what may be wrong. One big problem we aren't sure what we are doing. We found this site yesterday and I started reading all of the post that sounded similar to ours and so that is where we are at now. We have spent so much money on this engine it's not even funny. Now is that a normal thing with a Johnson??? So we are kindly asking for any help we can get.
Thank you and can't wait to see what yunz come up with..