Here is an update to my previous thread with different issues now...http://forums.iboats.com/forum/engi...orce-120-idle-issues-other-issues-help-please
So the motor seems to misfire as the rpm's go up as seen in this video... https://www.youtube.com/watch?v=3OLA6U3pHUY
At 1:11 you start to hear it and as rpms go up, it gets progressively worse at 1:24, at 1:42 is about wot and it is blowing tons of smoke....
Here is a bit more info on what we have done....
1. Separate gas tank to eliminate bad gas
2. Changed inline fuel filter
3. Put a spark tester on each cylinder and as the rpm's go up and it misses, the spark gets weaker and weaker, at full throttle, it is showing no spark going through the tester, this is on all 4 cylinders.
4. Spark plugs come out pretty black/rich. Around both the outside and electrode
5. Pulling the plug for coils 1 and 2 while the motor is running has a slight change in engine stumbling/sound...pulling the plug for coil 3 almost kills the engine but not quite, pulling the plug for coil 4 shuts the motor off.
6. The lower end is in a 50 gallon bucket of water so there is probably a little more load than on muffs, but not as much as being in the water.
We do not have a DVA adapter to troubleshoot the ignition system yet but we are thinking maybe the trigger or stator is on the way out...
Your thoughts/help would be greatly appreciated. Thanks, Paul
So the motor seems to misfire as the rpm's go up as seen in this video... https://www.youtube.com/watch?v=3OLA6U3pHUY
At 1:11 you start to hear it and as rpms go up, it gets progressively worse at 1:24, at 1:42 is about wot and it is blowing tons of smoke....
Here is a bit more info on what we have done....
1. Separate gas tank to eliminate bad gas
2. Changed inline fuel filter
3. Put a spark tester on each cylinder and as the rpm's go up and it misses, the spark gets weaker and weaker, at full throttle, it is showing no spark going through the tester, this is on all 4 cylinders.
4. Spark plugs come out pretty black/rich. Around both the outside and electrode
5. Pulling the plug for coils 1 and 2 while the motor is running has a slight change in engine stumbling/sound...pulling the plug for coil 3 almost kills the engine but not quite, pulling the plug for coil 4 shuts the motor off.
6. The lower end is in a 50 gallon bucket of water so there is probably a little more load than on muffs, but not as much as being in the water.
We do not have a DVA adapter to troubleshoot the ignition system yet but we are thinking maybe the trigger or stator is on the way out...
Your thoughts/help would be greatly appreciated. Thanks, Paul