I have a 1976 Johnson and it has a hard time running in the lake. I can start it in my driveway and run it, in the lake it won't start and if it does it boughs down. This is my first boat and I am not a outboard motor mechanic. I'm in Massachusetts
Hi, I have the same engine but there is no spark at any cylinder. Originally I found that the charge and timing coil was damaged so replaced that. But there is still no spark. Do you have any good reference for how to figure out what is wrong with ignition system? I was told it could be the coil packs but I doubt all three would go at once.
Hi. I was quite lucky in that it was just the coils that were intermittently at fault. I guess the circuitry under the flywheel is the other option and just a case of testing each component - the Clymer manual is quite useful for this. It’s a fairly simple system so if you’ve replaced the parts already then maybe there’s just a connection that’s not right, or a break in the circuit?
Charge coil and sensor coil failures are rare on these engines, unless they somehow got physically damaged. In any event, I would agree that you don't have three bad coils! I would try removing the black/yellow lead from the powerpack and checking for spark again. Check all grounds, especially from that ignition panel to the engine block.
@@paul7232 Sorry buddy, the inline fuse controls just the 12V positive flow to the key switch, nothing to do with the ignition system. The engine would not crank at all if the fuse was blown.
Love these old OMCs I have a 1975 Johnson 85 and a 1961 Johnson 10 :)
The best money can by
Two of the cylinders run great
nice chocolate jelly sound
That was the first run after new coils. One of the leads wasn’t connected properly into the coil.
I have a 1976 Johnson and it has a hard time running in the lake. I can start it in my driveway and run it, in the lake it won't start and if it does it boughs down. This is my first boat and I am not a outboard motor mechanic. I'm in Massachusetts
try cleaning the carbs
Agree - sounds like there is a hint of a rap. Pull plug leads to diagnose.
Might just be the audio, but it doesn't sound like it is running on all three cylinders.
Hi, I have the same engine but there is no spark at any cylinder. Originally I found that the charge and timing coil was damaged so replaced that. But there is still no spark. Do you have any good reference for how to figure out what is wrong with ignition system? I was told it could be the coil packs but I doubt all three would go at once.
Hi. I was quite lucky in that it was just the coils that were intermittently at fault. I guess the circuitry under the flywheel is the other option and just a case of testing each component - the Clymer manual is quite useful for this. It’s a fairly simple system so if you’ve replaced the parts already then maybe there’s just a connection that’s not right, or a break in the circuit?
Charge coil and sensor coil failures are rare on these engines, unless they somehow got physically damaged. In any event, I would agree that you don't have three bad coils! I would try removing the black/yellow lead from the powerpack and checking for spark again. Check all grounds, especially from that ignition panel to the engine block.
Check in line fuse on side of block.
@@paul7232 Sorry buddy, the inline fuse controls just the 12V positive flow to the key switch, nothing to do with the ignition system. The engine would not crank at all if the fuse was blown.
no spark is the timer base its like a stater the part is around 300$ besure to replace it with a OEM do not but a Chinese pice of crapt