I have been working on this motor for a while now and am having spark problems with it. I have checked all of the tests from the manual except I am unable to check stator volt output because of no meter and there is a 10 day waiting line for boat work around here.
Here is my story:
Bought the motor and ran great. Compression even on both cylinders at 130/132.
Took it of one boat (even started it before moving it) and put it on my boat
and had No Spark.
Took it to a Marina and a week or so later they called and told me the motor ran great, did not find a problem with no spark, come and get it and by the way, you owe us 86 bucks. They did fail to see a crack in one of the coils so I'm not sure how hard they really looked. But it did sound like it ran well so off I went.
Took it to the lake and would not start, no spark.
Brought it home and was tinkering with it for a while and all of a sudden I just turned the key and it started. Had no spark multiple times before that , then out of the blue, bam, it took off.
Took it on the water and it ran about 5 mph. Ran great with no load, but no power under load.
Started checking motor out and replaced both cracked ignition coils with new ones. Thought it would run great with all the power I needed now.Tried to start, no spark.
Did the key test. Disconnected the black/yellow kill wire, no spark, disconnected the red plug and jumped the solenoid and no spark.
Replaced the power pack and no spark. While I was testing the 6&7 wires to ground, the motor started and died when I took the wires jumpers off. I replaced the #4 ground wire on the power pack, (because I thought it was the thing to do) and it ran fine with no load, Took it to the water, lack of power under load, although it started right up and seemed to run very well out of the water, (with the driveway muffs on)
Today I thought I would check the output voltage of the coils with a borrowed meter (since it was running so well in the driveway last night) and tried to start it and had no spark. It coughed one short burst once and then went dead from then on.
I purchased a used stator that was said to be good and replaced the stator. Tried to start it and got one short cough and then no spark after that.
I'm almost thinking since it is acting so strangely that the key switch might be the culpret but I think I took that out of the loop with the tests I have ran.
The fly wheel is turning >250 rpm's, new plugs, 2 new coils, new power pack, different stator and still no spark. Should I replace the pickup sensor, it ohmed out OK.
I'm about at my wits end! Has anyone ran into something like this before that would be able to give me some direction. I can't help but think this thing is only running on one cylinder or has a very weak spark to have such a lack of power under load but I don't know how to fix it or if that is the correct diagnosis.
Thanks for enduring this long post. I'll probably go out in the morning and it will probably start! (for a while anyway)
Here is my story:
Bought the motor and ran great. Compression even on both cylinders at 130/132.
Took it of one boat (even started it before moving it) and put it on my boat
and had No Spark.
Took it to a Marina and a week or so later they called and told me the motor ran great, did not find a problem with no spark, come and get it and by the way, you owe us 86 bucks. They did fail to see a crack in one of the coils so I'm not sure how hard they really looked. But it did sound like it ran well so off I went.
Took it to the lake and would not start, no spark.
Brought it home and was tinkering with it for a while and all of a sudden I just turned the key and it started. Had no spark multiple times before that , then out of the blue, bam, it took off.
Took it on the water and it ran about 5 mph. Ran great with no load, but no power under load.
Started checking motor out and replaced both cracked ignition coils with new ones. Thought it would run great with all the power I needed now.Tried to start, no spark.
Did the key test. Disconnected the black/yellow kill wire, no spark, disconnected the red plug and jumped the solenoid and no spark.
Replaced the power pack and no spark. While I was testing the 6&7 wires to ground, the motor started and died when I took the wires jumpers off. I replaced the #4 ground wire on the power pack, (because I thought it was the thing to do) and it ran fine with no load, Took it to the water, lack of power under load, although it started right up and seemed to run very well out of the water, (with the driveway muffs on)
Today I thought I would check the output voltage of the coils with a borrowed meter (since it was running so well in the driveway last night) and tried to start it and had no spark. It coughed one short burst once and then went dead from then on.
I purchased a used stator that was said to be good and replaced the stator. Tried to start it and got one short cough and then no spark after that.
I'm almost thinking since it is acting so strangely that the key switch might be the culpret but I think I took that out of the loop with the tests I have ran.
The fly wheel is turning >250 rpm's, new plugs, 2 new coils, new power pack, different stator and still no spark. Should I replace the pickup sensor, it ohmed out OK.
I'm about at my wits end! Has anyone ran into something like this before that would be able to give me some direction. I can't help but think this thing is only running on one cylinder or has a very weak spark to have such a lack of power under load but I don't know how to fix it or if that is the correct diagnosis.
Thanks for enduring this long post. I'll probably go out in the morning and it will probably start! (for a while anyway)
Since voltages are now matched you may get what you have been looking for.