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Hello, my name is***** will assist you today.
Would you please post the serial number of the engine?
Have you done any troubleshooting already?
You will need a good quality multimeter to test the ignition system, do you have one?
Got it thank you.
There are still several items that can be checked without a meter. Are you ready to begin?
Alright, the first item to check is the fuel. Make sure that you do not have any water in it.
Then remove all 3 plugs and look at the tips, are they all the same color?
Have a helper crank the engine over, while you have the plugs inserted into the plug boots and make sure that all 3 cylinders have spark. You will need to do 2 at once. 1 and either 2 or 3, 2 and 1, then 3 and 1. The grounding system on the electronics is rather unique on this engine.
Let me know what you see.
Did he also do compression? If so, do you know the numbers?
What plugs are in the motor now?
Was the mechanic a marine tech, or an auto tech?
Has your engine been sitting some time unused?
Does the alarm system still function?
When the issue happens, has the engine been running for a bit?
Do you need to use a battery charger when you return at the end of the day?
When you turn the key on, you do hear the alarm test beep?
Ok, lets trick the alarm into going off..
Locate the tan/blue wire in the engine harness. With the key on, engine off, unplug the connector coming from the head sensor. Ground out the harness end of the connector to a good clean engine bolt. You should hear a solid tone alarm.
Can you remove all three plugs and look at the tips of them? Or send me a pic of them?
Thanks, ***** ***** is not firing/burning correctly. Number two is barely doing so and number 1 is fine.
When at idle, does the motor leave a sheen in he water?
Do you have access to a water hose and a set of flushers so that you can run the engine?
Sorry, had to step out for a bit. I am back online now.
Start the engine and just let it idle. Remove one plug boot and note the RPM change on the engine. Then replace that wire and do #2 and 3. The drop should be the same for all 3.
Please let me know how this goes.
Ok, what color i the fuel line to the engine? If it is gray, what color is any writing on it?
Have the carbs been cleaned as well?
It could be, you will need a good digital multimeter to test it
You would need to disconnect it and test between the green and the white leads for both resistance and voltage when cranking.