[hendi]

Many thanks SparkieBoat, where did you find the software ?
here

[marcpage]

Look at the top right of the page, next to your user name, click on Notifications and then inbox

[taypan]

Thanks a lot
Symptoms are multiple: engine starts after 2s or 3s starter at 900rpm (700rpm before, started immediately), idle problems ( not stable and sometimes stops) and now a new problem: randomly engine starts with ignition advance (typical engine knocks) with smoke and idle not stable and dies.
At WOT no problems
I have checked and clean all other sensors, TPS with good voltage, VST.
SparkieBoat: I am in France and I don't know sea foam: is it like Acetone or Methylated spirit ?
Yes I am very interested with your post about making the cable: loyoki@free.fr
Many thanks
Lo?c more

[michb]

I agree that the yellow wire seems like it should come from the keyswitch to one of the two diode shared coil connections, but when I buzz it out in my boat there seems to be no contact. This may be the problem.

[sudeyaa]

So with all those words, I wonder if the yellow wire is suppose to come from the keyswitch to energize the relay, wake up the ECU and then the ECU turns on the green wire to hold the power on the relay and power the gauges too. Would that make sense?

[cdnbcguy]

Re: 2003 Yamaha F115TR Main Relay Issue here

[DarkMatter]

you should check your ISC valve after letting the engine idle for about 5 mins, IF it is pretty hot to the touch, I will guarantee you thats your problem, many of these motors having freaky electrical issues caused by a overheating isc valve. [links]

[Pilot]

Fred, many thanks for studying that for me. You are spot on with the red wire, that is the hot side of the relay contacts. The red/yel wires are the other side of the contacts and therefore become hot whenever the relay is energized.

[thaigamezone]

Anyone know where the yellow and green wires for the main relay come from? When should they be hot? What is too much resistance on the contact side of that relay?

[Azetab]

I had a similar problem and wanted post the solution for future users cause it took me a while to figure out. [links]

[jrabbit]

I have seen bad battery connections do that several times. Also when people relocate the bat using longer cables more

[pascal50]

Thanks guys, I will start with battery and go from there.

[darkside]

I have a 5 year old Yamaha F115 four-stroke (very similar to the F90 and F150) with low hours (less than 300) and it was having trouble starting. When I turned the key I'd hear a click (the starter relay, so the key switch was good) but it would either not crank or delay a second or two before cranking.

[remyroy]

Easy fix for a Yamaha F115 that would click but not crank [links]

[sherrymade356]

If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. [links]

[Comatus]

If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. more

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[Eloar]

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