2008 F150TLR keeps running...

[mccdhash]

hello everyone!!! I'm new here and I have a pretty perplexing problem... I have a 08 Yamaha F150TLR that won't shut down when you turn off the key and/or pull the kill switch. The gauges all turn off but the motor just keeps on running...any ideas on whay it might be???

thanks,
mccdhash

[boats.net]

Probably have a broken wire inside the 10 pin main harness between ignition switch and engine, probably need to replace harness.

[rodbolt17]

does the RPM change at all when you turn the key off?

[mccdhash]

No change in the RPM when key is turned off... Does anyone have a wiring diagram for this motor? Also maybe a description of the wiring?? If I ground the "white" wire should that shut the engine off? I will be going out this morning with my multimeter to ring the wiring harness out.

Thanks,
mccdhash

[99yam40]

yes grounding the white wire from CDI should kill spark

[boats.net]

Here is harness chart
DLO-10PIN-CH-RT.pdf

[rodbolt17]

no CDI on the F150.
its a TCI system.
to properly shut it down you need to remove the 12V from the ECU while applying a ground on the white wire.
then the ecu will go into shut down.
carefully test the key switch.