Fuel primer inop

[Bracketracing]

Ok everyone it’s fixed. Defective new part twice. Order another from a different manufacturer and they failed to put the gasket in it. SMDH. I put gasket from new one I didn’t send back yet. Works like I thought and read. Yes if the bulb is pumped up fuel will spray if you push key in. Doesn’t have to be cranking. Thanks for everyone’s help.

 

[racerone]

Key must be pushed in while cranking it over !!

 

[Bracketracing]

The primer needs pressure in order to let fuel through !!!!-----That pressure would come from your assistant operating the primer bulb .-----Or from the starter cranking the motor and the fuel pump on the motor providing the pressure !-----So yes cranking has a lot to do with starting your motor.--Key must be pushed in while cranking it over !--And raising the lever has nothing to do with operating the primer either.-----Time to learn how the simple things work.----Read your manual or ask people who know how to start this motor.

Well just so you know. I was correct. If the bulb is pumped up and you push key in when key is on it will spray until pressure is gone. The solenoid doesn’t know if it’s cranking or not. I had 2 new bad solenoids. I ran every test I could find and think of before asking on this forum. Finally talked to a tech at local dealer he said I was correct. Ordered another manufacturer primer and it’s fixed. Only responded to your post because you acted like I was not smart enough to understand how the choke primer works. Turns out you didn’t know it. Yes it will continue to prime while cranking but if pumped up it will spray until pressure is gone.

 

[Bracketracing]

Key must be pushed in while cranking it over !!

No it doesn’t. I can film it if you want me to.

 

[saltchuckmatt]

Technically he is right so be careful with your words.

Any time you have an issue with your fuel pump or your primer often times squeezing the primer ball will override that problem..... hence that's why we all tell people to do it to determine things when there is issues with fuel.

If you look back, I was the one saying use OEM parts. I've used Amazon Chinese parts on lawn mowers and such but have had bad luck with outboards.

Either way, we are glad that it is up and running.

 

[racerone]

Key must be pushed in while cranking for near instant starting.----You must be aware that I have started more than 1 motor with this wonderful primer.-----These primers have been used since 1980 on motors from 9.9 to 300 HP !!!

 

[Bracketracing]

Careful with my words? Lol. The man sent me down a rabbit hole. Technically you are incorrect. The primer will squirt with ball pumped up until the pressure is gone. So telling me I have to crank it to see if primer works wrong. When owners manual tell you to hold in key for 8 seconds before cranking tells you it sprays without cranking. My .02 again thanks

Key must be pushed in while cranking for near instant starting.----You must be aware that I have started more than 1 motor with this wonderful primer.-----These primers have been used since 1980 on motors from 9.9 to 300 HP !!!

Yes I’m fully aware. For testing purposes you do not need to crank the motor. No service manual tells you to do that. For cold start you need to push the choke while cranking yes. These motors love fuel. I was hesitant to even ask a question on here. In my line of work sometimes the internet is not our friend. But sometimes it is. Again thank you all for your help I really do appreciate it. It did help me out.

 

[racerone]

I have lots of those primers ( used ) on hand.-----I know how they work.

 

[tphoyt]

I have to jump in.
The pump does the work.
The primer ball does just that it primes the pump.
Best

 

[Crosbyman]

https://maxrules.com/graphics/omc/wiring/1988_89_200_225.jpg

looking at the 89 version of the 200 hp wiring we can see that the key energizes the primer pump...electrically of course and seems no electrical CHOKING is involved in the key switch. In conclusion the only way to get some fuel to spit would be to push the key....momentarily to energize the primer valve solenoid.

assuming some residual line presssure or recent primer bulb pumping
....some spitted fuel could only reach the carb and get sucked in ...during starting while further assisted by the fuel pump .

 

[racerone]

The electric primer is a VALVE-----It must be open while cranking the motor over for cold starting..----The motor fuel pump supplies it with fuel while cranking.----These units are elegantly simple ! ---Same unit used on various 9.9 to 300 HP from 1980 to 2006.----A very good unit.----I have installed this unit on a MERCURY inline 6 for eliminate starting issues.

 

[saltchuckmatt]

Careful with my words? Lol. The man sent me down a rabbit hole. Technically you are incorrect. The primer will squirt with ball pumped up until the pressure is gone. So telling me I have to crank it to see if primer works wrong. When owners manual tell you to hold in key for 8 seconds before cranking tells you it sprays without cranking. My .02 again thanks

Yes I’m fully aware. For testing purposes you do not need to crank the motor. No service manual tells you to do that. For cold start you need to push the choke while cranking yes. These motors love fuel. I was hesitant to even ask a question on here. In my line of work sometimes the internet is not our friend. But sometimes it is. Again thank you all for your help I really do appreciate it. It did help me out.

Incorrect. If the primer ball has not been pumped holding it in for 8 seconds without cranking will not squirt fuel.

The best thing he told you was, "remove the little fuel line, turn the motor over while holding in the key". He could have been a little more descriptive but one could assume you knew what he was talking about.

If you would have done that then the on board fuel pump would have energized the primer and it would have squirted some fuel if working correctly.

The perfect test.

Not sure how that sent you down a rabbit hole.

 

[airshot]

Key must be pushed in while cranking for near instant starting.----You must be aware that I have started more than 1 motor with this wonderful primer.-----These primers have been used since 1980 on motors from 9.9 to 300 HP !!!

Had one on my 1979 70 hp. Johnson ob. Worked great until it didn't work !!! Expensive little suckers, cost me over 200 bucks about 15 years back !!!!

 

[racerone]

The 79 models did not come with the primer from factory.----But lots of work / replacement of powerhead perhaps.-----First used on the 70 HP model in 83 I believe.

 

[Faztbullet]

The primer only works if there is pressure in fuel system...either by bulb pumped up or by fuel pump when engine is cranked. To release pressure into carb/manifold fittings the key has to be pressed.

 

[airshot]

The 79 models did not come with the primer from factory.----But lots of work / replacement of powerhead perhaps.-----First used on the 70 HP model in 83 I believe.

Mine did, unless the title lied about the year...went over to local marine dealer with model number, took the primer off the shelf and I went home and installed it. Might have had a newer 1979.......

 

[racerone]

According to the parts book the primer valve appeared in 1983 on the 70 HP.----Something is unique to your motor.---Wrong ID plate or powerhead was replaced.

 

[airshot]

According to the parts book the primer valve appeared in 1983 on the 70 HP.----Something is unique to your motor.---Wrong ID plate or powerhead was replaced.

That didnt happen, bought from big marine dealer in Port Clinton Ohio, new boat trade, sold and serviced by dealer. Whatever it was it had the little red arrow and ekectric plug, dealer called it a primer solenoid when I bought that expensive little sucker !!

 

[saltchuckmatt]

That didnt happen, bought from big marine dealer in Port Clinton Ohio, new boat trade, sold and serviced by dealer. Whatever it was it had the little red arrow and ekectric plug, dealer called it a primer solenoid when I bought that expensive little sucker !!

My uncle was an omc dealer in the 60's through the 70's and I always hung out at his shop. Never remember them then.

Your motor easily could have had an intake/carb swap allowing it to have a primer.

Here is a breakdown of the 79 intake and carbs.....electric choke, no primer.

I'm pretty sure Racerone has forgotten more about outboards than what you and I even know combined.

 

[Bracketracing]

Incorrect. If the primer ball has not been pumped holding it in for 8 seconds without cranking will not squirt fuel.

The best thing he told you was, "remove the little fuel line, turn the motor over while holding in the key". He could have been a little more descriptive but one could assume you knew what he was talking about.

If you would have done that then the on board fuel pump would have energized the primer and it would have squirted some fuel if working correctly.

The perfect test.

Not sure how that sent you down a rabbit hole.

I never tried to get it to squirt without pumping it up because it doesn't work that way. It has to have pressure to spray. If you pump the bulb up it will spray for about 8 seconds and stop when pressure is gone. I was sure I had a bad primer. I was told I was not checking it properly. But I was. If it wont squirt fuel when bulb is pumped tight, fuel pump wont either. Not a big deal, junk parts caused my issue and ? my diagnosis.