1986 evinrude correct jetting

dcolpitts

Petty Officer 2nd Class
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Jun 27, 2003
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could someone pleeese look up the correct jet sizes for a 1986 140hp model e140tlcdc mine idles very rich and I suspect the jets are wrong, thanks
 

dcolpitts

Petty Officer 2nd Class
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Re: 1986 evinrude correct jetting

more info on the carbs, there are two differant sets of carbs, one number is a 397341,MX 10 BL the other is a 398212, MX 5 BL, no markings on the other two except the jets are different, two mid range read 16 the other two read 20, all low speed jets are 28, also is one set for port or starbord :confused: and is the port side the starter side of the motor :confused:
 

clanton

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Jul 9, 2001
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4,876
Re: 1986 evinrude correct jetting

The 397341 carb should be 28M low speed, 20M intermediate, 61D highspeed. The 398212 carb should be 28M low speed, 16M intermediate, 61D highspeed.
 

dcolpitts

Petty Officer 2nd Class
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Jun 27, 2003
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Re: 1986 evinrude correct jetting

thanks clayton for the info had the midrange jets wrong. Does anyone know which carb goe on what side or if the jetting is correct for each carb would it make a differance. :confused: thanks again for the reply
 

93bronco

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Nov 11, 2001
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962
Re: 1986 evinrude correct jetting

looking at a 1987 parts book, (yours is 1986)<br />i would set it up as follows<br />#28 idle air all carbs <br />#16 intermediate starboard <br />#20 intermediate port<br />-<br />#61D is listed as high speed.<br />-<br />you never said which high speed you had.<br />above is a set up for a 1987 140.
 

dcolpitts

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Re: 1986 evinrude correct jetting

thanks 2k, is the port side looking from the stern to the <br />bow, (or the starter motor side) thanks everyone for the help :D
 

93bronco

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Nov 11, 2001
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962
Re: 1986 evinrude correct jetting

standing in back of the motor - looking to the bow of the boat<br />port is on the left side (starter/vro side)<br />starboard is on your right (control cable side)
 

dcolpitts

Petty Officer 2nd Class
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Jun 27, 2003
Messages
149
Re: 1986 evinrude correct jetting

2k, the high speed is a 61d, thanks to you and claton got the info correct, the motor is a 1986 but may have been late due to your carb #'s. this is a original motor, no rebuild, but does not have the s.l.o.w and only had the 3 wire vro. thanks both for info
 
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