hckrphil
Petty Officer 2nd Class
- Joined
- Aug 8, 2004
- Messages
- 162
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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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:
***********************************************
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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