hello and thanks, rodbolt!!!

jay dezman

Petty Officer 3rd Class
Joined
Sep 19, 2004
Messages
85
several months ago, you provided some input on my underperforming 200 hp suzuki. at last post, my season had ended and i said i would pursue your suggestions in spring. <br /><br />last sunday, i took the cover(cowl) off and checked the air gaps for the pulser coils on the underperforming engine. one coil's air gap was visibly larger than the other two. i know you said to set the gap to a minimum voltage reading.<br /><br />i presume a smaller gap = a higher voltage output. other than preventing physical interference, is there such a thing as "too small a gap"?<br /><br />i still haven't located a cd77 with which to test voltage. <br /><br />when acquired, is this test done with the engine running? cranking with the starter? or just manually rotating the magnet past the sensor?
 

rodbolt

Supreme Mariner
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Sep 1, 2003
Messages
20,066
Re: hello and thanks, rodbolt!!!

wow that was a long time back<br /> I think the pulser coilair gaps are .020 . I dont think I would run them much closer than .o1o let me hunt the manual back down.
 

jay dezman

Petty Officer 3rd Class
Joined
Sep 19, 2004
Messages
85
Re: hello and thanks, rodbolt!!!

what can i say about the boatsing season on the great lakes....a lot shorter than in your area!<br /><br />thanks again for any help.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
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20,066
Re: hello and thanks, rodbolt!!!

hello<br /> the gap is set using a special jig. part #09931-88710 and set at .o3". I have used .02 and then a stevens CD-77. min pulser coil output with CD removed is 2.0 V and up. try to shoot for 5-6 volts. but dont move the coils anycloser than about .012 gap.
 

jay dezman

Petty Officer 3rd Class
Joined
Sep 19, 2004
Messages
85
Re: hello and thanks, rodbolt!!!

i still haven't located a cd77 with which to test voltage. <br /><br />when acquired, is this test done with the engine running? cranking with the starter? or just manually rotating the magnet past the sensor?
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: hello and thanks, rodbolt!!!

cranking with the plugs out and CDI disconnected or running. either way. book says cranking,plugs out, cdi disconnected.
 
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