[hckrphil]

I have a 94 Regal Rush 14' jetboat with Mercury Sportjet 90HP engine.

Recently rebuilt the engine........ trying to tune it up properly now.

By following the procedure below, I am getting a read on my timing light of 32 degrees @ WOT and about 12 degrees at idle.....

Is that normal? I know the 32 @ WOT seems right, but what about at IDLE?

Here are the directions I followed from another post on here:

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Here is how I do it... from the clymer manual... It takes two people... not enough hands. LOL. (But if you have a chance, check out Ken's website. You can click on the Kenimpzoom name next to his post for the link. Excellent advice is there for a SportJet owner.)Assure that the zero mark on the flywheel is aligned when #1 is at TDC.Remove the spark plugs and ground the spark plug leads.Connect the timing light to the #1 spark plug lead.Disconnect the throttle cable at the engine, and move the throttle tower shaft by hand to the WOT position. (this will advance the timing linkage and open the throttle plates)Crank the engine on the starter and note the timing marks on the flywheel rim. Timing should be 32degrees.If not, loosen the timeing link locknut and turn the adjusting screw.

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[hckrphil]

Anyone? Anyone?

[hckrphil]

OK, here is an update everyone.......

I backed the boat down the ramp into the water tonight........

I think I finally understand.........

At WOT, I have it timed to 32degrees...........

Then, the set screw adjusts IDLE. I believe mine was set too low.... when I decreased throttle the engine would die..........

It appears as though I need to get a bolt for the set screw that is about a quarter inch longer...... I'll replace that tomorrow, and hopefully have it idling fine.

What should the timing be around when idling, or should I not worry about that?

Once I get it to idle at a reasonable / reliable level, I'll continue adjusting the carbs.

I was just about to give up on this boat, but I think I finally have it....... stay tuned

Anyone have any other pointers?