LeeRoy's Ramblings
1974

It has been my observation that probably 95% of boat owners have very little idea of the operation of their

motors, or what it takes to maintain them.  THEREFORE these articles are dedicated to that 5%.

 

Specializing in OMC (Johnson/Evinrude) 2 Cycle Outboard Motor Info & Repair 1949-2007 Including OMC  6, 8, 9.5 ,9.9, 10, 15/18hp,  35/40hp & 70hp
First off I probably should apologize as these outboard motor repair articles started out designed for someone with some basic mechanical knowledge and a small amount of how motors operate.  It has become painfully apparent, because of increased correspondence that an increasingly number who use my articles have almost NO, OR LIMITED knowledge of even the principles of mechanical operation of these devises.  Therefore I am in the process of trying to re-write some existing articles, (however this may take some time) or adding other articles directed toward what many of us shade-tree mechanics have taken for granted.  These articles are not meant to replace factory service manuals and I recommend that you DO purchase a manual if you intend to work on any motor other than change spark plugs or gear oil.  My articles may explain examples of what you will run into (& many times goes way beyond the aftermarket manual, BUT DOES NOT replace it).  Here, you have to have some basic mechanical knowledge, be able to read and understand AND be able to apply it, and not be all thumbs.   I see here that sometimes a little bit of "knowledge" can be detrimental, because the person does not read ALL my information AND has little mechanical understanding.  This is not saying they are dumb, but just totally out of their elements as to comprehension.   Again, these are not meant to replace the service manual  Also there are good repair forums on the internet, one being iboats.com however, if you go to these, PLEASE first use the FAQ sections or do a search of the forum for your problem.  In all probability you may be a newbie to the forum, but your issue probably has came up many times before.  And if you do ask a question, be specific as to the make, year, model & HP of your motor AND give a history of repairs, if any, plus a detailed situation you are experiencing, if these are recurring problems, or if the motor is new to you.  Also when you log on to ask a question, use a descriptive header line, not just "PLEASE HELP" .  Do not expect an immediate response, as any answers you receive will be from other members who have a life off the internet.  If you get no response in a few days, it may be that your question is not worded with enough clarity, OR no one at THAT TIME has a proper answer.  Remember, a bad response answer is worse than no answer at all.   Or you may make another later post changing the title & also rewording the question for better clarity.  And please refrain from posting in a texting type abbreviated, no punctuation format, which is HARD to read when related to trying to really understand your problem, accepting the fact you probably have little knowledge of normal technical outboard motor terms. And you have to realize that replacement parts for many of these old motors may not available today.  Yes, you may be able to improvise at times, but will it stand up under extended usage and /or possibly leaving you stranded?  Then for you who are tied to a I-Phone or your computer, and have never considered going to a established marine repair shop that may be able to really help you with personal experience and possibly some used parts, so you may be chasing your tail for a long time online. Now I would like to address another issue, although pretty much in line with the opening paragraph.  I repeatedly get inquiries asking if I would clarify some sections of my articles.  I try to do this almost daily(and from Worldwide), BUT if you are NOT anywhere mechanically inclined, or have never done any outboard repair, YES things can be totally foreign to you.  My comment back to one man who did not understand my boat related words, was that if a person was writing a computer repair manual, you have to use computer terms.  My suggestion at that point, take it to someone who can fix it.  OR take your repair SLOW, remove a part at a time, take photos & be very observant of what location and what it is connected to BEFORE it comes off.  Then look at my instructions, it now may become a lot clearer to you as you get into your project.  AND if you do inquire about your specific problem, remember that I do this for FREE and it bothers me considerably if you ask for my expertise and input, BUT give me nothing as to previous repairs that you have already done, OR why you did them.  Then when I reply, you say that you have already done that.  OR you contact me but do not give me the title of my 60+ outboard repair articles that you are referring to.   AND most of these in queries want my response within hours.  And if they send a photo, they may send them in 50GB, which is way TOO MUCH resolution for my old computer to handle.   Kind of makes me a bit less interested in helping if you are that narrow minded.   As I flunked mindreading school years ago & learning by Osmosis is rather slow.
1 OMC	Acquiring / Restoring Antique - Vintage Small Outboards	New  01-30-22
2 OMC	History of Private Brand (House Brands) Outboards	New  04-07-19
3 OMC	How to Flush / Test Run an Outboard Motor, Off the Water	Updated 07-14-23
4 OMC	How to Remove Stale Gas / Rust From Fuel Tanks	New  03-25-22
5 OMC	OEM or Aftermarket Outboard Motor Parts?	Updated 05-28-17
6 OMC	Identifying Outboard Water Pump Impellers	COMING
7 OMC	Paint Colors for OMC Outboard Motors	New  03-07-23
8 OMC	Evinrude Model/Year Identification Chart 1913  1979	Updated 11-30-14
9 OMC	Johnson Model/Year Identification Chart 1922 - 1969	New  20-13-20
10 OMC	Johnson/Evinrude Year/Model Code Identification 1979 - 2007	New  08-12-11
11 OMC	OMC Miscellaneous Motors / Sail Drives & Military Motors	New  01-13-15
13  OMC	Online OMC-Johnson/Evinrude Non factory Service Manual 1971-1989	New  09-16-17
14 OMC	Spark Plug Identification & Cross Reference Codes	Updated 02-26-23
15 OMC	Frequently Asked Outboard Motor Questions	Updated 11-29-20
16 OMC	Reviving an Outboard From a Watery Grave	Updated 11-08-23
17 OMC	Removing, or Repairing Stubborn Bolts & Seized Pistons	Updated 05-29-22
18 OMC	Troubleshooting & Principles of Operations of Outboard Motors	Updated 11-03-23
19 OMC	Carburetor Repairs for Small Outboards	Updated 08-31-22
20 OMC	Exploring Storage of Gasoline & Outboard Oils for 2 Cycle OBs	Updated 04-07-23
21 OMC	Untangling the 2 Cycle Fuel-Oil Controversy	Updated 11-02-23
22 OMC	Understanding Fuel Line Connectors for Remote Tanks	New  07-12-23
23 OMC	Johnson/Evinrude Magneto Ignition (Numerous Models & Years)	Updated 11-03-20
24 OMC	Johnson/Evinrude 10 hp QD Series Motors "Sportwin" 1949 - 1963	Updated 10-23-23
25 OMC	Johnson/Evinrude 15 E & 18/20hp FD "Fastwin" Series 1953 -1973	Updated 11-03-20
26 OMC	Johnson/Evinrude 9.5 hp MQ Series "Sportwin" 1964 - 1973	Updated 07-28-23
27 OMC	Johnson/Evinrude 4 hp 1981 - 1990	Coming Soon
28 OMC	Johnson/Evinrude 4.5 hp 1980 - 1983	Updated 05-18-22
29 OMC	Johnson/Evinrude  6/8 hp 1984 - 1990 & 7.5 hp 1980-1983	Updated 07-16-22
30 OMC	Johnson/Evinrude 6/8 hp 1984 - 1990  Modify for Flush Adapter	Updated 11-04-20
31 OMC	Johnson/Evinrude 6/8 hp 1991 - 2005	Updated 12-28-21
32 OMC	Johnson/Evinrude 9.9/15 hp Frequently Asked Questions	Updated 02-24-21
33 OMC	Johnson/Evinrude 9.9/15 hp  General/Normal Repairs 1974 - 1992	Updated 11-22-24 **
34 OMC	Johnson/Evinrude 9.9/15 hp  Powerhead / Midsection Repairs	Updated 10-24-23
35 OMC	Johnson/Evinrude 9.9/15 hp  Carburetor / Fuel Pump Repairs	Updated 11-08-24
36 OMC	Johnson/Evinrude 9.9/15 hp  Gear Box/Water Pump Repairs 1974 - 2007	Updated 03-19-23
37 OMC	Johnson/Evinrude 9.9/15 hp  Water Circulation 1974 - 2007	Updated 06-22-23
38 OMC	Johnson/Evinrude 9.9/15 hp  Converting Shaft Repairs 1974 - 2007	Updated 11-01-20
39 OMC	Johnson/Evinrude 9.9/15 hp  Converting to Electric Start 1974 - 1992	Updated 11-10-24
40 OMC	Johnson/Evinrude 9.9/15 hp Converting 9.9 to 15hp  1974-1992	New 11-14-24
41 OMC	Johnson/Evinrude 9.9/15 hp  General & Normal Repairs  1993 - 2007	Updated 06-23-23
42 OMC	Johnson/Evinrude 9.9/15 hp  Converting to Electric Start 1993 - 2007	Updated 11-29-20
43 OMC	Converting Johnson/Evinrude 9.9/15 hp to Hydraulic Power Tilt	Updated 11-29-20
44 OMC	Johnson/Evinrude 35/40 hp  "Bigtwin" about 1965-1977	Updated 01-22-22
45 OMC	e-Bay Purchased Motor, Rebuild & Why it Blew a Piston After a Rebuild	Updated 11-07-20 ***
46 OMC	Rebuilding the OMC pre 1987 Fuel Pump	Updated 11-07-20
47 OMC	Rebuilding the OMC post 1987 Fuel Pump	Updated 11-07-20 **
48 OMC	Converting the Old Dual Fuel Line pre 1959 to New Single Line	Updated 11-07-20 **
49 OMC	Converting a 70 hp Console Control Motor to Tiller Control	Updated 11-07-20 **
50 OMC	Outboard Motor Trim / Tilt Motor Replacement	Updated 11-07-20 **
51 OMC	Repairing a Seized Steering Shaft on 2005 75HP Evinrude E-Tec	New  02-02-23 **
52 OMC	Problems Converting a 2012  25 HP Evinrude E-Tec to Long Shaft	Updated 11-07-20 **
53 OMC	Real Odd-Ball & NON-US Motors	Updated 11-10-24

 

The above numbering system may change from time to time when I add articles

Most all articles here are Copyrighted from 1994 to 2024 by LeeRoy Wisner

 

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