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  1. D

    '72 100HP 'rude starflite distributor leads

    I have been working on this good old engine, primarily on the ignition system. After disassembly, cleaning,setting gaps, etc., I am now in the final reassembly phase. I am concerned I may have accidentally misconnected the spark leads from the distributor to the cylinders. I could not find a...
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    increase high RPM on 1971 100hp 'rude

    Greetings! I have had very good luck with advice here in the past. My good old Evinrude ('71 100 hp) has been giving me lots of headaches this last summer. I thought I had them all fixed, and the other day took it to the lake for a last ride of the season. Everything was perfect, except one...
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    Evinrude lubricating equivalents Type A and D

    I have a 72 100hp 'rude. I rec'd a service manual for it as a gift. The section on general service (and throughout the manual) refers to Type A, C, and D lube, as well as GE Versalube G-322L. I have always been using Type C in the lower unit (I bought the motor about 20 yrs ago), but did not...
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    1972 'rude 100 hp- power pack test

    Does anybody have any ideas on how to bench test the OMC power pack on this baby? The previous owner included it, saying ti was good, but he had replaced it with a CDI model which I think I have fried inadvertently. Thanks!!
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    '72 'rude 100hp ignition questions

    I have spent this summer resescitating this old boy. I got it running, but it never got above 3500 rpm, so I decided to check spark plugs. 1 & 2 looked fine (light brown powder), but 3 & 4 were oily, so switched plugs and no change. Swapped wires and no change. Then decided to start...
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    "72 "rude 100 hp firing order

    I am not getting spark on the lower 2 cylinders of this good 'ol motor. I plan on doing an ignition test in the next few days. My understanding is that there is only 1 coil on this v4 with cd ignition. Does anybody know what the firing order is? I am thinking if the coil does not recharge...
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    '71 'rude 100hp sparkplug reading

    okay, on this oldie but goodie that I am trying to restore, it starts fine, but does not get above 3500rpm at WOT. The prop has been rebuild, along with the carbs, so I thought I would check the plugs. On the upper two, the electrode was a nice powdery tan, while the lower two (especially...
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    Lower unit Lube color

    As part of the recent restoration of the 1971 100HP Evinrude, I drained and refilled the lower unit with Type C grease. The old lubricant was very thick and dark (it had not been changed for 15 yrs, but the last 10 it was not used). Because I wanted to get rid of all the old lubricant, I...
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    1971 Evinrude 100hp questions

    Thanks to many of you, I have been able to get this oldie running again (after being idle for 10years!). Anyway, this afternoon, I took the old boy for a spin, and decided to see what she had left in her. At full throttle, the tachometer barely got to 4000 rpm. It actually stayed around the...
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    disposal of "old" lower unit lube, type C

    I just drained and refilled the lower unit on the 1972 100 hp 'rude. It uses type C lubricant. In todays climate of recycle if possible, what suggestions might there be to recycle, or at least, properly dispose of. Thanks!
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    1972 100 hp Evinrude- Running, but problem with Hydro electric shift

    YEAH! I got this old boy ('72 100 hp Evinrude) running!! I noticed when it was idling, that the prop seemed to be spinning rather fast. I know the shift switch in the Johnson Hydro-electrtic remote control was in neutral, because if it was not, the current to the solenoid would be...
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    72 100hp evinrude- slow starter

    Yes, I know that this motor is 40 years old, but I can remember when it was "introduced". Anyway, I am trying to bring it back to life. It has not run in 3-4 years (as a result of a personal health incident). When I started this project, there was absolutely nothing happening (except being...
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    72 evinrude starter assistance

    I recently took the starter motor off my 1972 100 hp Evinrude. It seemed like it was turning the motor over slowly, so I thought I would check brushes, etc. There was grease in the end cap that was quite solid. so I basically just cleaned every thing and put it back together. The starter...
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    '72 Evinrude 100hp Safety switch function

    I am trying to get this old boy running again. It used to turn over, but slowly (not nearly enough to start). After verifying I was getting 12 volts at both the solenoid input and from the key switch, I decided to replace the solenoid. Now, I get nothing (but I will recheck in the next few...
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    solenoid test for 72 evinrude 100ho

    I think my starting problems are in the solenoid, but I want to make sure it is the solenoid first. A friend suggested that I connect the positive lead of a multimeter to the power in post and the negative lead to the power out post. When I do that, what readings should I expect (with key on...
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    1972 100hp Oldie but (hopefully) a goodie- solenoid test

    Well, I have been working on this oldie that does not start. Initially, there was no click when key in the start position. That has now been fixed and the starter motor engages, but runs very slowly. The following is the result of some voltage tests at the solenoid with various key positions...
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    ignition switch test

    I have a 72 100hp Evinrude. (with a Yohnson single lever hydromatic remote control). When I turn the ignition switch, there is complete silence (however, the choke does engage the butterflies). I was going to start the diagnostic testing at the ignition switch. What tests (and results) should I...
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