99 Johno Choke activation!!

[Dazza1]

Hey Guys,

Got a 99 Model 90 horse Johno, My young fella a few months ago got a bit excited about going for a ride and accidently got caught in the Killswitch cord and snapped the ignition. Ive glue it back into place and the motor turns over fine, but now when i push in the key, the obvious click, click in the motor isnt there anymore. It hasnt been a issue while its been warm weather, now that the chill is starting to move in I have noticed that it takes a bit more to wind the big girl over!! I should mention, that the kill switch isnt on the key anymore. It was like a slide that slid under the key, Its hard to explain, Ill take a pic tonight and see if anyone else knows what Im talking about.:alcho meter: To many of these badboys I think.

[Dog Catcher]

Sounds like you've lost contact to the choke's solenoid.

You may have ripped off a wire when you snapped the ignition.

Pretty easy to check if you by-pass the ignition & give power direct to the solenoid

[storms72]

DC does the choke solenoid activate when the key is pushed in??? If it does maybe in your fix with the glue Dazza you've prevented the key from pushing in far enough to make contact and thats why its not activating the choke??

[Dazza1]

Yer Storms, found out that last night when I got in and had a look, Im going to order a new assembly from seafarer this week. When Ive glued it back into place, some of the araldite had run onto where the safety "slide" is seated and thats why I couldnt get it back in. This in turn doesnt allow the solnoid to come into contact and thus my problem is a trivial one!! I like it when it is a easy fix!! Costly but easy!!! I was starting to think it was

[Dog Catcher]

DC does the choke solenoid activate when the key is pushed in??? ??


Yep Yep

From memory there should be around 9 wires coming out from the back of the switch itself.

2 of those go to the chokes solenoide, when the key is depressed it allows the contactors toclose thus giving you power to the solenoid.

Haddn't realised Dazza had let the glue overspill onto the contacts :rolling laughter:

Dazza a new switch is a better option but you could also bypass it if you had the wiring diagram for the switch to find the 2 wires needed to activate the solenoid.

All that's need then is to connect them to a toggle switch.

By the way you can activate the choke manually as well but on the Johno's you'll need to lift the cowl I think, Yams have an external pull outlever.

Just pull on the the linking rod coming going to each of the carbs

[Fed]

I don't think that motor has butterfly chokes Dog Catcher.

[storms72]

Good stuff Dazza, so long as you get it sorted buddy! I recently had to get parts for my Johnno....Its detailed in a post in the my boat or outboards section-not sure which but you will find it...The guys I got my parts from are really helpful and may have your parts in stock!

FED I reckon iof Dazza has carbies on his engine the choke should be butterfly type.....Unless the engine is EFI??????

[Fed]

My 90HP 1989 Evinrude (Johnson) uses a primer solonoid which allows raw fuel to squirt straight into the intake manifold, no choke butterflys or choke linkages at all.
OMC were still using this system in 1998 and I expect also in 1999 and later carby models.
The primer solonoid won't have any linkages just a small red lever to activate it manually and allow the fuel to pass through.

[storms72]

Cool FED.....I didn't realise they used that method! So long as it works thats all that matters!