question about Joe Reeves timing method

[sat1962]

According to the method you take all 3 spark plugs out....I know you set the timing light on #1 wire........do you set up a 7/16 spark on all 3 cylinders or just #1?

Also to achieve WOT do you tie the timer advance with a wire or do you use the throttle lever...or both?

and since I am here I have another question.....which of the 2 screws is the idle adjustment.the top one or the bottom one. I am thinking it is the bottom one but what does the top one do?

70 hp Johnson 1988.

Thanks in advance for any answers.

 

[OBJ]

Re: question about Joe Reeves timing method

Yes. The idea is to give the electrical energy a place to go on all three (if that's how many you have) cylinders. Without a place to go, damage to the pack or coils could occur.

 

[Vic.S]

Re: question about Joe Reeves timing method

The instructions are to wire the timer base to the stop if necessary.

The question about the idle screw. Are you referring to the carb mixture setting? If so I think you will find there are no adjustment screws. See the carb diagram on the BRP parts diagrams HERE

If you mean the wot and idle speed settings look at the other thread now running on idle adjustment see http://forums.iboats.com/showthread.php?t=255855

 

[OBJ]

Re: question about Joe Reeves timing method

If I can add a little to Vic's advice.....If you use the throttle, the engine will not crank because of the start in neutral switch in the controls. Easiest thing to do is diconnect both control cables and wire the throttle open.

 

[5150abf]

Re: question about Joe Reeves timing method

The screw on the bottom is for idle and the one on top is to set the WOT timing.

Set up a spark jumper on all 3 plugs, undo the linkage and wire it as far forward as it will go, have someone hit the key and note the timing.

You want whatever your full advance is -4 degrees, mine is 19 so I set it at 15, you do thid by moving the top set screw in or out depending, when you get it tihgten the lock nut and you are done.

I will take a permanant marker and draw a line where you need your timing to be, makes it alot easier to see where you need to be.

 

[sat1962]

Re: question about Joe Reeves timing method

okay I tried doing this timing ,set spark tester
on all 3 cylinders, unlinked throttle linkage, moved other thing under flywheel . It was all the way to rubber stop. My timing read 12 degrees I need to get it to 15 to achieve 19 which is in the manual. I moved the threaded rod wheel counter clockwise but it did not change the timing. What am I doing wrong? I did notice that my spark on all three cylinders was a thin blue line but was wavy not direct is this normal?

Me and my wife took boat out to test it and it ran fine out of the harbor planed up great then i cut back throttle from full to 3/4and it died and was having tough time starting. Only way i could get it back to shore was take carb air box off and run it with no motor cover .

This is very frustrating I dont know if I am missing something or what i need to do.

Thanks for all your replies

 

[wilde1j]

Re: question about Joe Reeves timing method

Run the engine incorrectly timed at your peril ...

 

[sat1962]

Re: question about Joe Reeves timing method

my objective is to time it properly but im not that familiar with outboard engines and my seloc manual is very vague

 

[Joe Reeves]

Re: question about Joe Reeves timing method

The threaded rod wheel is to set the cam to throttle roller (syncronization). Put that back where it was.

To change the timing, loosen the 7/16" lock nut on the timing set screw (the one with the rubber boot) so that you can adjust that screw in to out to change the timing in either direction.

 

[sat1962]

Re: question about Joe Reeves timing method

thanks joe did u also seee in my reply to what my spark test looked like it was a wavy thin blue line on all 3 would this make carburetors flood or do u think its the timing being off
THANKS AGAIN

 

[Joe Reeves]

Re: question about Joe Reeves timing method

The spark test (with all spark plugs removed) should have the spark jump a 7/16" gap with a strong blue lightning like flame..... a real solid sharp wide SNAP!

A thin wavy line indicates weak spark. If this is what you have, it's unlikely that the spark plugs could properly ignite the conbustion mixture. Check the stator to see if there's cracks in it and/or a substance dripping out of it down onto the powerhead. If the stator is failing, the voltage to the powerpack would drop which would result in weak ignition.

 

[sat1962]

Re: question about Joe Reeves timing method

thanks joe i checked with visual inspection on stator really dont see anything but i tested it with ohm meter not getting any readings do i just hook leads to wires or do i hook leads to wires and manually turn flywheel my seloc manual didnt mention any moving of flywheel Thanks again or is there another way to test stator before i buy a $200 part thanks

 

[Joe Reeves]

Re: question about Joe Reeves timing method

No need to be turning the flywheel as you're simply taking a ohm reading.

It would be the Brown wire and the Brown/Yellow wire leading from the stator to the powerpack that you want the reading of. I'm drawing on memory here about the color of the wires.

Getting even a thin wavy spark..... you should be able to get some kind of reading.

If I'm in error about the wire color, someone jump in here with a correction.

 

[sat1962]

Re: question about Joe Reeves timing method

okay i did that and it read .5 so is that enough or is stator bad and yes you were right on the wire colors and seloc manual was wrong.joe maybe u need to help the seloc people since your memory is better than there collective research

 

[Joe Reeves]

Re: question about Joe Reeves timing method

I don't recall exactly what that reading should be. Hopefully someone will jump in here with those specifications. Your reading of 0.5 doesn't ring a bell at all pertaining to the reading between the Brown and Brown/Yellow output stator wires.

 

[sat1962]

Re: question about Joe Reeves timing method

Joe i found out between 450 650 which would be okay on my reading as o.5 is 500 in thousands that my meter reads it .What should i check next and if you have a procedure it would be much appreciated im losing faith in seloc manual

 

[Joe Reeves]

Re: question about Joe Reeves timing method

Disconnect the lsrge RED electrical plug at the engine, then check the spark by jumping the starter solenoid. Does that correct the spark problem or is the spark still weak?

 

[sat1962]

Re: question about Joe Reeves timing method

Ok i will check it tommorrow and get back to you thanks for all your help

 

[sat1962]

Re: question about Joe Reeves timing method

okay i disconnected red power plug and used starter and solenoid to crank it still weak spark what can i check next thanks for help

 

[sat1962]

Re: question about Joe Reeves timing method

new powerpack today and i dont see any diffrence i had it ordered well thanks 4 any help if u can help me