Have Boat Questions? Ask a Boat Repair Expert.
Hi this is Kenny I'm the Yamaha boat expert, who am I speaking to ?
Tell me more about the battery, was this battery completely dead when you went to charge it ?
Also do you have a multi-meter for checking voltage and resistance ?
Thanks for that information, having a meter in these cases I a must, I would like you to do some simple checks before we dive in, I'm thinking that this is something relatively easy as you just removed and replaced a battery. If you have any Harbor Freight tool stores close to you they have one there for $7 or Walmart is an option.
I want you to check the battery first while in the boat, I'm going to give you a test and perform that, make sure that you get the meter lead connected right on the battery, let me know what you come up with and then we'll move forward from there.
You’ll need a multi-meter and set it to VDC, and since we are only testing the battery (12 volts) you can set it on the scale accordingly.
Key off, we need to establish “battery” voltage, take a measurement and record it.
Key on, observe the voltage drop with the key on, and record it.
Key on, now while observing your meter, attempt to start the engine and observe the voltage drop, and record that. If your meter doesn’t have a peak voltage setting, you might have to do this a few times to get an accurate reading.
Once you get the results, please get back to me.
So when you got to #3 did the engine turn over ?
You are leaving me with very vague answers, so lets try this ?
Will the engine turn over (don't care at this point if it starts) just crank over when the ignition switch goes to the start position ? Either YES or NO ?
OK, good so the starting side of the electronics are working its just the accessories side, I want to make sure that I grab the correct wiring diagram so if I can get the Hull # ***** will give me the exact model, then I need to go over the diagram and I will get back to you with a list of areas to check, should be pretty simple.