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Quick start operation

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ajv00303

Regular Contributor
I am in the process of getting familiar w/ outboards......been a I/O guy mostly.
I recently bought a boat w/ twin 1995 Johnson 175's.....learning as I go.

In reading the manual and articles online; it appears that the quick start function is accomplished by adjusting the timing at idle until a certain temp is reached, by way of a temp sensor in one of the cylinder heads.....I believe the wht/blk wire. When adjusting/checking the timing the manual says to ground out one of the tan wires but I think those wires are for the overtemp alarm.

Please confirm by observations. Also looks like the idle RPM is controlled by the timing at idle.

TIA
 
Timing generally does not go out of adjustment for the life of the motor.----Careful if you decide it needs tweeking !
 
The engines that are equipped with the "Fast Start" feature.... That feature is engaged when the cold engine is started and running at an idle. The timing is advanced slightly electronically, eliminating the need to advance any warm up lever. When the engine's temperature reaches a certain lever, the sensor in the port cylinder head grounds out which causes the Fast Start feature to be disabled via the white/black wire... at which time the engine drops to whatever the idle is set at.

The TAN wires are all sensor leads for the warning horn system.... Low oil, No oil, Fuel restriction, overheating, and in any case, the TAN wire(s) has nothing to do with the "Fast Start" setup.

In checking the timing for any reason, that is done with a timing light attached to #1 cylinder
 
You have 60° motors and timing cannot be set with a timing light. You have to use a timing tool as the flash from the light can cause the optical eye to give erroneous readings. Your manual should state this also unless it a aftermarket brand
 
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