bitcoinia
06.05.2021 6:49:48
when you see whats inside of a power pack it brings home the reality that these power packs can fail for MANY reasons, or no reason at all.
See full version: What causes power pack to fail johnson outboard
when you see whats inside of a power pack it brings home the reality that these power packs can fail for MANY reasons, or no reason at all.
Timer Bases are $200+. I'd hate to have to buy one for my $350 motor :( So I am still mullng this over. I may just still buy the powerpack and hope for the best. more
I'm not even sure that it is the powerpack that has failed, but the wiring on the current one looks so bad, that I think it needs replacing, anyway.
The motor is a 90's OMC v4 with the single powerpack. I think mine has gone bad, since I only have spark on 1 cylinder.
ill check for voltage there that would be the black and yellow wires right?
im asumming id check for this voltage with the packs hooked up and the engine off right? here
aside from overheating, what can cause it?
i recently bought new coils and power packs for my 1981 140 model number j140tlcim after about a half an hour of running BOTH power packs failed, the engine didnt overheat or anything they just cut out! what can cause this ?
they were under warranty so i sent them back but id like to prevent this again if at all possible .
bad grounds can cause many problems always good idea to check and re tighten. I took out a rectifier in my 2000 johnson 150, got stuck in mud and ran it with hot light on for about 4-5 minutes. [links]
thanks sparkie i read through that earlier . im kind of at an impass until my DVA adapter gets here everything else looks good no chaffed wires or loose connections that ive found but i plan on going over it again once the DVA, rectifier, and powerpacks get here
Turn the multimeter on and switch the power to the "DC" or "Voltage" setting. Also set the voltage range to at least 150 volts. here
The power pack on your Johnson outboard boat motor is a central part of the ignition system. The power pack supplies voltage to the ignition system's power coils. A malfunctioning or dead power pack can cause your Johnson outboard to have problems at start up. You can use a multimeter to test the power pack. However, because the power pack has varying voltage levels, a peak voltage adapter will also have to be hooked up to the multimeter.
Connect the peak voltage adapter by plugging its test leads into the positive and negative jacks on the multimeter.
Locate the wires that run from the power pack to the power coil. These wires are typically colored orange or white. Locate the positive and negative terminals. They will both be marked clearly. Touch the positive and negative test leads to the corresponding wires connected to the power coil. The voltage reading should be at least 150 volts. If not, replace the power pack. [links]
Plug the multimeter test leads into the voltage adapter.
The coil on your outboard is a sealed unit. The body should be completely intact and free of cracks. If an oil-filled coil is wet on its outside surface, it is cracked and leaking. It should be replaced. more
If the coil is weak or damaged it will produce less spark energy than it is designed to. This will produce a weaker spark at the spark plug gap, making the engine harder to start. Spark plugs that are continuously fouling can indicate a weak spark. more
If the coil is not producing enough voltage it can cause the engine to run erratically. If the problem seems to come and go, such as smooth acceleration and then rough acceleration, it could indicate that the coil is not able to maintain a steady voltage output. here
Outboard motors are designed to provide years of trouble-free operation, and nothing spoils a weekend outing like one that will not run properly. Maintenance on these engines is relatively straightforward, and many of them sit for an entire off-season without being started. When problems do arise with the ignition system it is rarely the coil, but they do sometimes fail.