Association Forum - Evinrude 2 stroke outboard 1990

Assn Members Area · Join

Home.

Association Forum

Ships Store

Cruising

Racing

Technical Tips

Photo Gallery - New

Boat Search - Updated

Manuals & Brochures

Swap Meet

Links

Officer Flag Line & Staff

Bylaws & Constitution

Members Area

Join the Association

Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.

Association Forum

Username:	Password:
Save Password
Forgot your Password?

All Forums

Catalina/Capri 25/250 Sailor's Forums

General Sailing Forum

Evinrude 2 stroke outboard 1990

New Topic

Topic Locked

Printer Friendly

Author

Topic

Stu Jackson C34
Admiral

Member Avatar

844 Posts

Initially Posted - 07/25/2011 : 15:01:37

You guys are my favorite resource for outboard engine info.

Had a great day yesterday. Our son Morgan came with me and we got the dinghy inflated and the outboard engine going in preparation for our Delta trip in mid-August. Anyone know about a 2 stroke 1990 Evinrude outboard engine, specifically low idle in neutral? Runs great in forward and reverse, but barely idles...:-! Engine had been stored vertically for a few years. Started up on the 14th pull.

I'm pretty sure it's the carb, but I need more details...and hopefully a link to a website with a picture of the carb, or to a specific, not generic book for this particular engine (I have a link to great writeups on those old Johnson/Evinrude engines, but it has no pictures).

New gas (poured the old stuff in the car), added ethanol stabilizer and 2 cycle oil to the clean gas tank; does have an old squeeze bulb and hose, but runs fine in gear.

Plugs OK (Am I correct in thinking that if it runs well in gear the plugs are fine? I know they're gapped right and have hardly been used.)

Carb deposits - next thing to tackle

Idle speed - I'm searching for a picture of the carb to find the right adjustment. Just did it yesterday and had to work today, so also have to find my old engine manual - it's somewhere in a box in the garage!

Will carb cleaner work?

Seems I need to adjust the idle screw. Any pointers or pictures to locate it?

Stu

Stu
1986 C34 #224 "Aquavite"
Cowichan Bay, BC Maple Bay Marina
(formerly San Francisco)
(formerly C25 #2459 "Capricorn Two")

Edited by - on

aeckhart
Master Marine Consultant

Members Avatar

USA
1709 Posts

Response Posted - 07/25/2011 : 15:26:07

i have that engine and a shop manual. I'll check it out and get back to you.

Edited by - on

redeye
Master Marine Consultant

Members Avatar

3476 Posts

Response Posted - 07/26/2011 : 04:58:49

rich/lean screw on mine ( 1984 Johnson 6hp sailmaster )

6 oclock on startup and 9 oclock running.

Just my experience on mine. Skips at 6 when it has warmed up and quits skipping as soon as I lean it out.

also, we are running in relatively warm temps here.

Edited by - redeye on 07/26/2011 05:00:35

DaveR
Master Marine Consultant

Members Avatar

USA
2015 Posts

Response Posted - 07/26/2011 : 06:10:59

I believe that the jet attached to the float in the carb is what governs the flow of gas for idling. So I'd take a look there to see if there's any goo attached, and as always, blow some compressed air through every orifice. But cleaning up a carb is really very easy and if I've got ANY problems with how my motor is running I completely tear it down and clean it up. I've even found a small piece of crud on the idle (air/fuel mixture)needle valve that messed with idle.

Just guessing but I'll bet this is close to what you've got.
[url="http://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1990&hp=8&model=E8RLESR&manufacturer=Evinrude&section=Carburetor"]1990 Evinrude 8 carb diagram[/url]

Edited by - DaveR on 07/26/2011 06:16:47

Stu Jackson C34
Admiral

Members Avatar

844 Posts

Response Posted - 07/29/2011 : 09:45:29

Many thanks for the information.

Edited by - on

Stu Jackson C34
Admiral

Members Avatar

844 Posts

Response Posted - 07/31/2011 : 15:14:43

When in doubt, get the engine model right from the engine itself! Doh! Just did and get now find the "right" carb.

Thanks again, gentlemen.

Edited by - on

Stu Jackson C34
Admiral

Members Avatar

844 Posts

Response Posted - 08/29/2011 : 10:39:52

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by redeye
 rich/lean screw on mine ( 1984 Johnson 6hp sailmaster )

6 oclock on startup and 9 oclock running.

Just my experience on mine. Skips at 6 when it has warmed up and quits skipping as soon as I lean it out.

also, we are running in relatively warm temps here.

<hr height="1" noshade id="quote"></blockquote id="quote">

That was THE answer. The rich lean worked better as a choke than anything else. When i opened the cowl, the choke lever didn't seem to do anything at all, only clicked between a couple of metal tabs that didn't seem to be connected to anything!

The engine fired pretty much right up, and worked all week.

Thanks again for your help.

Any ideas what the choke lever is doing by doing seemingly nothing?

Edited by - on

DaveR
Master Marine Consultant

Members Avatar

USA
2015 Posts

Response Posted - 08/29/2011 : 11:16:00

The choke (on small engines) leaver is generally connected to a shaft that holds a metal flap that opens sand closes the air intake to the carburetor.

Edited by - on

redeye
Master Marine Consultant

Members Avatar

3476 Posts

Response Posted - 08/29/2011 : 11:48:53

That choke was usually a very simple link to the metal plate that turns and blocks the carb opening... easy to see in the diagram, although the choke is not connected in the diagram... just like yours apparently.

You might be missing the link on the choke knob... shown in the parts list #335226.

Edited by - on

jbkayaker
Captain

Members Avatar

USA
299 Posts

Response Posted - 08/30/2011 : 17:30:18

If you have not replaced the original fuel lines with line labeled "achohol resistant" AND you are using ethanol contaminated gasoline, then expect the carburetor to get clogged with the semi-dissolved interior of the fuel lines. Maybe the additive will save your engine but I wouldn't count on it.

Edited by - on

Topic

New Topic

Topic Locked

Printer Friendly

Jump To:

Association Forum

Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.