1975 25 horse 2 stroke

[rpmdj1]

1st post

hi all my name is russ and this is my first post I have been reading the forums since yesterday and as of last night i thought I had found what I was looking for but then I fell asleep and my laptop powered down and I lost my place so let me start from the beginning I have a 1975 25 horse evinrude which along with the boat was my dads he passed away and so I got the boat and motor well the connection cable casing had rotted away the ignition switch was corroted and the wire connections had fallen off I got a new switch at the marina but im getting mixed info on where to connect each wire the wires are pos and neg from the battery
the 4 ignition wires are black red tan and green the ignition switch pole letters are s a c m and m if anyone can point me to the page where I fell asleep I would be be very greatfull and less frustrated
thankyou
Russ

 

[aspeck]

Hello and welcome to the forum! Pictures are always a good thing! Is this the thread you were reading? It might help. Good luck!

http://forums.iboats.com/forum/engi...vinrude-outboards/10011831-196x-johnson-35-33

 

[GA_Boater]

Welcome aboard, rpmdj1.

I can't help you find the thread you were reading, but you can look at your browser history. That should get you started finding where you were looking before nodding off.

Of if you did a forum search and remember what you searched for, you might see the thread. Hope you you find it or one of the Evinrude guys sees this and can help you out.

 

[rpmdj1]

water intake

im having prolems uploading a picture
so heres the question is the water intake on my 1975 25 horse evinrude the 3 tiny holes just above the prop on the side of the lower unit if I can figure out how to up load a pic I will do so

 

[racerone]

The exhaust thingy that sticks down behind the prop.-----Look for the water intake screen on that.

 

[rpmdj1]

No Title

 

[rpmdj1]

thank racerone I hope the label "cadet" is not a permanent

 

[rpmdj1]

I recently inherited my dads boat and motor
heres my prob first of all I don't have a battery yet Im on disability so I have to wait till nov1st to buy it so I tried to turn it over by jump starting it off of my car
it turned real slow so I tried pull starting next to imposible
I took out the spark plugs and it spun just fine with no weird noises is it as simple as no battery that's the case shouldnt I be able to at least pull it also I didn't have it hooked up to water as I had no intention on starting it would that stop it from turning
finally I know for a fact it was takin well care of
thanks
if you have questions please ask

 

[lindy46]

You have to have a real good connection, so sometimes jump-starting doesn't work that well. I wouldn't worry about it - try again when you can connect it properly. And make sure all the connections are clean and shiny. Use a wire brush. Those beasts are next to impossible to pull-start, and not really designed for that unless you are a body-builder with big muscles. I guess they just provided the pull-start for emergencies.

 

[racerone]

lots of those left the factory as manual start only,----How long since the motor ran ?----One year or more ?

 

[gm280]

Jump starting most any engine helps, but it doesn't pass as much current as good solid hookups will. Just the nature of the beast. You are trying to pass lots of current via a few spring claim connections. JMHO!

 

[Guest]

"Those beasts are next to impossible to pull-start, and not really designed for that unless you are a body-builder with big muscles"

Really Lindy? Who told you that?

These are 22 cu in twins that can be pulled with one hand, and electric start was an option. I've own several and I'm not a muscle boy by any stretch. If that engine is pulling hard, there's another reason.

You also need a good solid electrical connection when you do spin it with the starter because the coils take some extra juice when cranking to start it.

You can also pull start it when the key is in the "on" position to complete the starting circuit if the battery is connected.- provided you have a charged battery.

Use nuts on the battery terminals for a no-nonsense connection, and try it then.

 

[lindy46]

Oops - sorry - I thought it was a 75hp engine - my eyes are not so good anymore. Yeah, that should pull-start easily. If it doesn't, there most likely is a problem somewhere.

 

[rpmdj1]

thanks all for the input what would you suspect is making it so hard to turnover or pull start here's the story
my family did a lot of fishing over the years after my mom died dad kinda gave up on fishing and as far as my step mom says had the motor was yearly serviced but didn't run it the last5-7 years of his life he had developed altzheimers and just out of habit kept getting it serviced it had been stored in a heated basement

 

[rpmdj1]

when I took out the spark plugs it turned and pulled easy where do you all think I should start looking for a problem

 

[oldboat1]

Don't think I would assume there is a problem. It sounds like the motor has good compression. Spray some fogging oil or similar in the plug holes to lube it, as it's been stored (2-cycle oil will work fine. Don't overdo it.) Just rotate the flywheel clockwise by hand a few turns (plugs out). You will want a compression and spark tester, if you can come up with those -- also a charged battery if you can get hold of one. Jumping isn't too effective, and you don't want to damage the starting system (want to work with the wire harness, not direct to the starter). But getting the starter running will make testing and starting easier. You will want to replace the impeller before actually running the engine (about $20 or so), and will want to drain the lower unit and replace the oil (marine hypoid gear oil for manual gear cases -- engines with a shift lever on the side). Think I would do a compression test first to see what you have -- likely to be fine from your description, but a first step in deciding whether you want to restore it.

 

[rpmdj1]

thanks oldboat1 I know one of the fuel line connectors is defective "new connectors ill be here on monday"as I cant get pressure to the
motor I remember I had an old chevy that when it was out of gas it wouldn't turn over easily im wondering if this old evinrude is the same way.
what is fogging oil ? the impeller is for the water circulation system am I right?I am going to start basic inspection's first thing how hard is it to change out the impeller im a pretty good mechanic just never did a lot on boat motors sorry for all the questions and again thank you

 

[rpmdj1]

the water pump kit looks easy enough

 

[steelespike]

You will need a a reprint factory manual if you going to resurrect this beauty.Reprint manuals are available here at iboats
When messing with the gear case don't remove the philips head screw. just the big flat head screws.upper is a vent lower is as drain.
with the motor upright fill the lube through the drain hole till it comes out the vent hole.Put in vent screw then quickly insert the drain screw.
Speaking generically if the motor is in gear or the throttle advanced too far the manual; start may be locked out.
With thje plugs out you should be able to turn the flywheel by hand.

 

[oldboat1]

thanks oldboat1 I know one of the fuel line connectors is defective "new connectors ill be here on monday"as I cant get pressure to the
motor I remember I had an old chevy that when it was out of gas it wouldn't turn over easily im wondering if this old evinrude is the same way.
what is fogging oil ? the impeller is for the water circulation system am I right?I am going to start basic inspection's first thing how hard is it to change out the impeller im a pretty good mechanic just never did a lot on boat motors sorry for all the questions and again thank you

If no fogging oil on hand (used for storage), get some marine 2-cycle oil (TCW-3 rating, as most are) -- use the two-cycle for that prelim lubing. It's a little like your experience with the Chevy. Clean the fuel tank, and check out the hoses and hand pump. They should be flexible. Clean/drain lines and spray some lube in the connectors (WD-40, whatever you have). Connectors may still be OK.

edit. useful stickies here on restoration/resurrecting stored motors. good to check those (orderly process).