What is this?

[phiber_optikx]

First of all, I am new to boats so bear with me. I went to prep my boat for the lake after a long winters rest so I can chase some whites upstream. I take off the engine cover, spray in some starter fluid, crank the engine, and see this fall off... I am by no means a mechanic but am hopng someone can tell me what it is and where to put it back. 72 evinrude 65 horse BTW.

 

[racerone]

Re: What is this?

Choke solenoid plunger.

 

[Crosbyman]

Re: What is this?

looks like a selenoid plunger on the electric choke

The spring pulls the choke closed when the round cylinder gets pulled UP in the selenoid (electro-magnet)

 

[Joe Reeves]

Re: What is this?

That's the plunger and spring that operates from a electric choke solenoid. Plunger goes inside the solenoid... the wound end connects to the choke butterfly arm pin.

 

[Crosbyman]

Re: What is this?

lost the race... while typing

 

[phiber_optikx]

Re: What is this?

Ok, second question. Thanks BTW. How important is it? I ask because I had my carbs rebuilt last season and ever since then the engine won't start when I use the choke. Was it disconnected all along or is that part of why my boat wouldn't start yesterday? I saw the piece and stopped tinkering because I figured it wouldn't start otherwise. If it is important, can someone give me a visual so I can put it back or direct me to where I can find one?

 

[Faztbullet]

Re: What is this?

Also there is a spring that goes in solenoid, make sure its in place before reinstalling as it wont work correctly without it. I use a baby wire tir on choke shaft to hold it in place instead of o-ring as they dry out and fall off like yours apparently did.

 

[Willyclay]

Re: What is this?

I do better with pictures, so maybe the link below will help you also:

http://www.*****************/parts/...&manufacturer=Johnson&section=Intake+Manifold

I do not have a service manual for that model but the parts schematic should help you. As you can see, there are other springs #14 and retainers #46 that will be needed to complete the repair. The missing OEM parts probably went down into the exhaust housing opening below the powerhead. To avoid that same fate with the repair parts, stuff rags/towels into the opening between the bottom of the powerhead and the cowling. FYI, those parts in your hand will cost over $50.00 to replace! Good luck!

EDIT: iboats.com is suppressing the link to a parts diagram on another website and I fully appreciate the reasons why. Will try to find you another picture unless some other forum member beats me to it.

The best I can do for you is this old forum thread with a link to a Clymer non-factory service manual:

http://forums.iboats.com/boat-topic...nline-service-info-not-just-boats-393281.html

LOGIN as directed and drill down to: Small Engines, Marine/Boat Motors, Evinrude/Johnson, Outboard 3-Cylinder Models 65HP, Condensed Service Data. Carb/choke info is on page 3.

 

[Joe Reeves]

Re: What is this?

How important is it?

I had my carbs rebuilt last season and ever since then the engine won't start when I use the choke.

It's quite important if you expect the cold engine to start.

Take the engine back to whoever rebuilt the carbs and hand him that plunger and spring, obviously he neglected to reinstall it.

As Faztbullet mentions... there is a fine spring within the choke solenoid. Its purpose is to return the plunger to its neutral state. If it is not there, the plunger will not pop back out where it belongs when "NO" voltage is applied.

I'm assuming that the choke solenoid is present on the engine?

 

[narvlebenoit]

Re: What is this?

starting fluid is not good to use to start your motor use mix gas in a spray bottle.

 

[Fed]

Re: What is this?

As a precaution don't try & use the choke until it's fixed, energizing the coil without the plunger will lead to high current and likely burn the coil out.