really need help

[jesusn]

hi /man am i stuck./ i have a jonhson 70 1983 2 stroke 3 cyl been runing good all season one day i took it out for a cruise and it died on me at idle then became dificult to start. whan i finally could get it started it woud idle rouph then when ide give it gas it would die took it bake home, put the ears on it tuned the key started wright up ran geat for ten minuts then died started it up again now it smokes pops coughs then dies , if igive it gas it stays runing but sounds like its farting lol no lie , ive taken the carbs apart three time and cleaned them acording to manuel changed the spark plugs and wires new fuel lines{ all of them} new pump n filter cleaned choke silenoid the only thing i didnt do was check the compretion due to lack of the tool im going to take the fly wheel of tomarow to clean all contacks ,ive noticed alot of people having similar problems with similar motors but they dont seam to post the solution for the problem can anyone help thanks for your time

 

[Daviet]

Re: really need help

There isn't anything under the flywheel to clean or adjust, unless the flywheel key sheared.
You need to check spark and compression, make sure carbs are working correctly.
The engine didn't overheat did it?

 

[jesusn]

Re: really need help

no it didnt over heat i thought that there was litle contacts under the fly that send the curent for the spark plugs / but plugs are new and gaped myself to .030 i checked if they have spark and there hot and blue , and dont seem to be missfireing any , im ordering a carb kit from here becuse all i did was clean the hek out of them thy are the cleanest looking carbs ive ever seen in my life and i worked on alot of them . im also going to try to get my hands on a compretion tool but if they all come out ok were els can i start looking at? thanks

 

[jesusn]

Re: really need help

finally fixed my motor, she runs just as good as ever just in time for the camping trip . heres what i did to fix it i woke up this morning motivated as ever got my hands on a compretion tool did the test after sweating bullets woried ill have to rip the block she passed with a 120 straight through shocked and imprest whith my litlle motor i new it had to be the carbs . unfortunetly the carb rebuild kit wasent coming for two more days i whent to the aouto parts store and bought a pack of mixed gasket sheets and made all my own new gaskets, copied from the original even all the air silencer ones and she fired right up, no poping no smoking no couphing ,stalling,or idleing rough , im still going to change them out once the kit gets here, but temp fix for now

 

[Cajun Blues]

Re: really need help

Glad to read you fixed the problem!
Just something to think about down the road, My brother-in-law has the same engine and had a dying/coughing problem. Turned out to be a melted stator under the flywheel that would only act up after the motor warmed up. Other than that its been a dream motor! Lots of fish and fun with it.
Have a great time on your camping trip.