Logo
FULL SITE MENU

Timing

R

rude56

New member
I have a 1992 60hp rude.I have

I have a 1992 60hp rude.I have to set idle by timing. Clymer doesn't say if it has to be restrained or unrestrained during timing or does it matter? Thanks
 
"welcome to marineengine!

i

"welcome to marineengine!

it has to be set at wot (wide open throttle) heres how to do it yourself ....by joe reeves

(Timing At Cranking Speed 4°)
(J. Reeves)

NOTE: If your engine has the "Fast Start" feature", you must disconnect/eliminate that feature in order to use the following method. The "Fast Start" automatically advances the spark electronically when the engine first starts, dropping it to normal when the engine reaches a certain temperature.

The full spark advance can be adjusted without have the engine running at near full throttle as follows.

To set the timing on that engine, have the s/plugs out, and have the throttle at full, set that timer base under the flywheel tight against the rubber stop on the end of the full spark timer advance stop screw (wire it against that stop if necessary).

Rig a spark tester and have the gap set to 7/16". Hook up the timing light to the #1 plug wire. Crank the engine over and set the spark advance to 4° less than what the engine calls for.

I don't know the full spark advance setting your engine calls for, but to pick a figure, say your engine calls for 28°, set the timing at 24°. The reasoning for the 4° difference is that when the engine is actually running, due to the nature of the solid state ignition componets, the engine gains the extra 4°.

If you set the engine to its true setting at cranking speed, when running it will advance beyond its limit by 4° which will set up pre-ignition causing guaranteed piston damage! You don't want that to take place.

No need to be concerned about the idle timing as that will take care of itself. The main concern is the full advance setting.

Be sure to use your own engines spark advance settings, not the one I picked out of the air here in my notes.
---------------------------------------------------------

or you can hang off the back of your boat while at wot..........but i would wait till it got warmer for that one---just in case.

your book should have the wot timing if not post back----i can find it for you."
 
Back
Top