67 johnson 80hp random problems

[pmack2787]

i have my 80hp johnson with a hard start, it also will not rev all the way to full throttle, and it randomlly leaves me out on the water<br /><br />i may have fixed some of the problems by changing the plug wires, but the last time i tired to crank it the starter bendix went out

 

[MCM]

Re: 67 johnson 80hp random problems

Welcome to the forum pmack,<br /><br />A little more history would be helpfull, such as is this motor new to you?<br /><br />Any maintanence history like have the plugs been replaced recently? what do they look like? wet/dry/fouled? have you done a spark test?<br /><br />Have the carbs been cleaned/overhauled since you've owned it?<br /><br />Also make sure all electrical connections are clean, free of corrosion and tight. If these are the original battery cables they may look OK on the outside but may not be much more than green mush under the insulation. Check the ign. coils for any signs of cracking or other defects as this was not uncommon on that vintage coil.<br /><br />Sounds like alot of questions but it will help in narrowing down your problem.<br /><br />Post back with any info and Good Luck

 

[steamboatwilly]

Re: 67 johnson 80hp random problems

pmack,Also check the flywheel key.

 

[pmack2787]

Re: 67 johnson 80hp random problems

i have replaced the water pump and cleaned the carb and checked the feul pump for operation most of the motor has been rewired but the cables may be original. ill check the coils for cracks.<br />thanks for the help