Primer Solenoid

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,074
Re: Primer Solenoid

Sure, The motor will be hard to start when cold, but normal to start when warm.

Is that the answer you were looking for?
 
Joined
Jul 15, 2009
Messages
11
Re: Primer Solenoid

Sure, The motor will be hard to start when cold, but normal to start when warm.

Is that the answer you were looking for?

Thanks that is exactly what I needed to know and that is exactly the problem I am having. Motor runs great once I get it started.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Primer Solenoid

i have had those 1/ 16th hoses get clogged. was not the primer.
 
Joined
Jul 15, 2009
Messages
11
Re: Primer Solenoid

The boat will still start but it takes it a little while. it used to prime then fire every time but it began to have problems starting about 8 months agoe and I have just fished with it because it was fine once it got started. I have changed the plugs, fluids, fuel filters all omc parts thats all it has ever had. I am down to the fuel system. The primer bulb gets hard motor spins and fires then chokes out and the process begins again. I can finally get it started after about 10 minutes I usually have to and peg it to the floor for a second or two just keep it going. The motor smokes a little more than normal but i figured it was bacause I have to have it wide open to keep it running plus I have been trying to start it for an extended period of time. Once i get the inital fuel vacuum I am good to go or maybe its just the engine wamed up. Also it is more difficult to start when it is in the water vs. having the ears and muffler on it. any other thoughts
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Primer Solenoid

normal harder to start in water, there is back pressure on exhaust in the water, not on muffs. when you press the key in can you hear the solenoid click?
 
Joined
Jul 15, 2009
Messages
11
Re: Primer Solenoid

normal harder to start in water, there is back pressure on exhaust in the water, not on muffs. when you press the key in can you hear the solenoid click?

Im not sure but dont think so I will have to check it out. It is getting power. What else should I check for
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Primer Solenoid

well there is not any backpressure on the exhaust, when starting on muffs, so when in the water there is backpressure. set your idle speed to 1,000 rpms on muffs. then start it in the water, and adjust you idle speed with the motor in the WATER and IN GEAR.

also could be human error in starting procedure. read this. http://forums.iboats.com/showthread.php?t=225510
 
Joined
Jul 15, 2009
Messages
11
Re: Primer Solenoid

well there is not any backpressure on the exhaust, when starting on muffs, so when in the water there is backpressure. set your idle speed to 1,000 rpms on muffs. then start it in the water, and adjust you idle speed with the motor in the WATER and IN GEAR.

also could be human error in starting procedure. read this. http://forums.iboats.com/showthread.php?t=225510

Defiantly no click from the primer solenoid when I push in the key. I had power last time I checked it but now I?m not so sure. But when I turn the red knob about a 1/3 of the way the boat starts. I know this is not right and you are not supposed to touch the red knob but I did so on the request of a friend. What I am planning on rebuilding or replacing the solenoid on Sunday. Are there any other potential causes why the solenoid my not be clicking on that I need to check???.
 

psteurer

Petty Officer 1st Class
Joined
Nov 10, 2008
Messages
366
Re: Primer Solenoid

If you have a volt-ohm meter, you can test the primer solenoid. There are two wires coming from it. Remove the wires from the connectors and set you VOM at a low resistance scale. Place the leads on the two wires. You should get about 4 ohms from what I recall.

Before you put the wires back on, clean the connections real good and then give it another try by pressing in the key. You should hear a single click everytime you push in the key. if the primer is working. It may be hard to hear so it is good to have a second person near the engine to listen. Make sure you have the key in the accessory position when you do this.

You always start your motor by turning the red handle and pump the primer bulb. By doing this you are bypassing the electronic part of the primer and shooting some gas directly behind the carburetors Once it starts turn the red handle back to where it belongs. It is a pain to do this since you have to remove the cover every time. But it works.
 

clevecan

Petty Officer 2nd Class
Joined
Aug 25, 2008
Messages
130
Re: Primer Solenoid

I have a 1990 bass tracker with the 60HP Johnson VRO with the Primer Solenoid and I
checked today and when i push the key inwards it will click and sometimes it won't, If I go out there now and try it the Primer Solenoid will click a few times and then nothing.Does this mean It's going bad or can I take it apart
and check anything and or clean it?
 
Last edited:

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Primer Solenoid

clevecan, disconnect the wires, and clean the contact at the primer end. usually the ground wire.
 

15flats

Seaman
Joined
Nov 18, 2009
Messages
64
Re: Primer Solenoid

Do not want to hijack, but did not see any need for 2 of primer solenoid posts. So when the key is pushed in, why is it sometimes fuel trickles out from around the red button? And why do we NOT touch this red button? read that earlier in this post.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: Primer Solenoid

If fuel leaks you need to replace the cracked part. Most likely it'll be the red knob or the cap.

In the parallel position the primer is in normal mode. The solenoid is activated from the key switch. You can manually activate the primer by moving the knob.
 

15flats

Seaman
Joined
Nov 18, 2009
Messages
64
Re: Primer Solenoid

Dhadley, thanks for the reply!! I just noticed this today while testing my tilt\trim and started the boat when a relative came over to check it out (I just traded my Motorcycle for it last week). I really did not think to much of it because I was trying to figure out why my trim relief valve started leaking after I opened it and let the outboard down. I will look at it this weekend.

Thanks again!!
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,930
Re: Primer Solenoid

Just because it clicks does not mean its working, be careful and remove one of the primer lines from primer, pump up bulb, turn key on and press in, you should see fuel dribble from the line fitting. Alot of people do not understand a primer and think it squits the fuel, but it is only a valve that opens/closes and the fuel pump/bulb pressure is what forces fuel into intake when cranking. There is a filter inside primer that everyone forgets about and these can get clogged over time and cause hard starting problems. The primer should click each time you press in key, if not it a bad connection at primer or keyswitch or a bad internal connection inside switch.
 

clevecan

Petty Officer 2nd Class
Joined
Aug 25, 2008
Messages
130
Re: Primer Solenoid

Ok thanks all for the info, I';ll check the wires and ground wire.I will also check if
when used it alows fuel the exit the little lines off the primer,
thanks again.....
 
Top