95 dt150 help please

[Solarman]

Timing coils and magneto, that's why I mentioned that other persons thread on his problem, did you read it.similar to your situation.

[dkshooter]

I assume that I must have adjusted something but I cant figure out what. both times the timing light was attached to the battery. is there a common set of wires or maybe a sensor or coil that have #1,#3&#5 in common?

[aquamort]

Great idea solarman. I would do as solarman suggested either tying or have someone hold the timing light on and try moving the tilt up and see if the other cylinders kick in.

[Solarman]

testing

No dk, I didn't mean for you to do it, I was just showing a thread to you where this person had similar situation, and he worked it out.
We all learn from these problems, and those of us here are people, just like you that have similar experiences, but we enjoy trying to make something work, and help others like yourself work through these problems.
This persons thread/ problem may also play a part in your problem.

Ok, you have 1,3,& 5 - were partially firing, but not firing now. Did you do anything that may have caused that? Was the timing light connected at the side of your motor, or directly at the battery? Did you change that setup? Do you have any loose wire connections near there? Corrosion?
Maybe you could start the motor, with timing light connected tie the trigger back, and see if carefully wiggling wires/ plug connectors causes changes?
Let us know.

[dkshooter]

I went thru the thread you recommended there is no way that I can do that in-depth testing but I will do what I can thanks for the link.

[dkshooter]

????

well I have just spent the last hour trying to duplicate the results from yesterday the only fire I can get is from the 2,4&6 cylinders it is consistent and equal all I can figure is a loose wire but I don't have a clue where to start looking? just read your last post I will read the other thread and see where it leads.
thanks

[Solarman]

checking firing

You may need to check several more times, both when cold and warmed up, which is why I say document each test. And why I ask you to alternate sides tested, to find out what is going on.
And make sure you read that thread I suggested in last message about
” missing at speed” by, seaox230c.
It could relate to your problems. So document.
good luck.

[dkshooter]

wiring

I can trace wires but the image is too fuzzy to read the colors. I will go out and test the spark next.

[Solarman]

Is there a chance of poor connections on the wires when tested?
Try again with engine cold again, and start with1,3,5 then the other side. Are you able to read your wiring diagram?
It is important to document your findings on each test, they will help you solve your problems.

I might suggest you do a search:
” Missing at speed, seaox230c ”
seaox230c, had a similar problem, read what he wrote.

[aquamort]

Possibly bad connection/earth somewhere maybe? When your tilting its moving some wires/connections?

[dkshooter]

??????

Ok!
I will try not to make this a book so if I leave something out ask please first I started on the even side got good fire on both plugs on all 3 2,4&6 went to the odd side got no fire on 1 or 3 but when I tested 5 I got an erratic flash so I went back to the 3 then the 1 and got an erratic flash????so I checked the even side and I got an erratic flash this time???? not as erratic as the odd side but it definitely had a hitch in its gittey-up so it seems that the odd side does not fire until the thermostat opens up? I hope this makes sense to you because I am really lost now.
help please!!

[Solarman]

testing plug wires

Test each cylinder, one plug wire at a time. We are looking for consistency in flashes. Erratic or no flashes would be important, even if on 2nd plug for same cylinder.
Motor should be running with muffs on, or in the water.

[dkshooter]

spark plugs

it is a 2 spark plug per cylinder motor. Do you want me to check both plugs 1 after the other or both at the same time?

[Solarman]

dt150, running issues

Ok, it sounds like it is high enough to be freewheeling, until it pulls itself back into the water.
had a couple of people that had a short in the electrical system that if tilt button was used their motor took off great/ normally.
Ok we're back at checking to see if your motor is running on all 6 cylinders.
Do you have a timing light that clips onto the plug wires? It's the easiest method to clip to each wire and see if all the wires cause the light to flash the same/ consistently, or identifying which do not flash alike. And if you have multiple wires on each cylinder check them at the same time.
Let us know what happens.

[dkshooter]

It was not out of the water, as it was coming up it gets to about the water inlet on the side of the lower unit and it starts accelerating as it does this the increased thrust pushes the motor back into the water and that lowers the rpms?? the rpms get up to around 4000-4500 before it drops again.