My father in law bought a used 40555. He's taken it to 2 repair shops and it still won't run right. Here's what we know they did:
1. Rewired most of it.
2. One shop said there was little to no spark in the lower cylinder. They got that working
3. One shop changed the impeller.
We took it out today and it started right up and ran fine. Ran it for about 10-15 min. I attempted to adjust what I think is the Low High knob because it was running rough at full throttle yet it did not seem to change anything.
Then we stopped for 10 min in the middle of the lake. It started fine yet we did not get any power at full throttle. I tried adjusting the Low High again and still nothing. Took it to full in and back it out 1 1/2 turns to 5 full turns. No change.
I'm thinking we either lost spark again or compression.
So I have 2 questions:
1. How many PSI should I have in each cylinder?
2. How many turns should we back out the Low High?
Here are 2 videos of the motor running when we did not have full power.
Part 1 - https://www.youtube.com/watch?v=wGnY-ADMHSE
Part 2 - https://www.youtube.com/watch?v=5MW4iHX7DiM
1. Rewired most of it.
2. One shop said there was little to no spark in the lower cylinder. They got that working
3. One shop changed the impeller.
We took it out today and it started right up and ran fine. Ran it for about 10-15 min. I attempted to adjust what I think is the Low High knob because it was running rough at full throttle yet it did not seem to change anything.
Then we stopped for 10 min in the middle of the lake. It started fine yet we did not get any power at full throttle. I tried adjusting the Low High again and still nothing. Took it to full in and back it out 1 1/2 turns to 5 full turns. No change.
I'm thinking we either lost spark again or compression.
So I have 2 questions:
1. How many PSI should I have in each cylinder?
2. How many turns should we back out the Low High?
Here are 2 videos of the motor running when we did not have full power.
Part 1 - https://www.youtube.com/watch?v=wGnY-ADMHSE
Part 2 - https://www.youtube.com/watch?v=5MW4iHX7DiM