engine wont advance on start up

[roland 4]

i have a 1996 125 v4 johnson outboard. on start up the engine does not advance until warm up and then fall back to normal idlying. can you help

 

[racerone]

More details needed.------How does the motor start for you?----Are you referring to the " Quick Start " feature?-----Temperature sender on the cylinder head may be defective.

 

[roland 4]

the motor starts at 1100 rpm. no trouble starting but it does not advance upwards to about 1500rpm to allow warm up.

 

[racerone]

Does it slow down once warmed up ?----Thermostats working ?

 

[roland 4]

no it maintains the same rpm-1100. when started on land this is okay but starting it cold after being launched the water resistance causes it to stall. i observed you mentioned a defective temperature sensor. what is the diagrammatic routing of this sensor. is it connected to the primer solenoid?