i'm new on boat Johnson outboard 150HP

[iwombat]

Re: i'm new on boat Johnson outboard 150HP

I'm guessing if you now did a decarb and tested again you'd have even better numbers.

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

thanks iwombat i will try that but at this time i have problem starting i got new battery i try to start but sound like engine can't turn maybe battery AMP low

some one can help me on carb??
need help to adjust carb after cleanning use air blow and adjust float
on 1979 150hp v6
i can not see any adjust needle High Speed Mixture & Low Speed Mixture

 

[iwombat]

Re: i'm new on boat Johnson outboard 150HP

They're fixed jets. No adjustments. You'll need to make a tool to remove the jets and give them a proper cleaning. Do a search on carb tool you'll get a pile of postings.

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

so where is the jets locate ?
it the jet item 26 or item 33 ?

thanks

 

[iwombat]

Re: i'm new on boat Johnson outboard 150HP

Both.

26 is your idle jet and 33 is your high-speed jet. Both should be removed and cleaned with the tool. And, the passage behind should be cleaned as well. There's two of each for each carb.


Underneath #2 is the idle jet capilaries. Its a good idea to remove #2, clean underneath, and replace it with a new one. A service manual will detail it all out for you.

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

Thanks iwombat gave me good info

problem one after the other at this time i thing starter problem
install new battery the starter start right up with out turn the key
remove starter clean
after take out clean and check the brust all oke but when
test the starter with the meter one end go to the body starter and the other end go to + terminal i got shorted see pic #2 below ( this is normal )

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

got the engine start and run today for a short time only because i don't have the water hook up to the cooling system yet

i have some questions
1st how is the elect choke work and how do i know the choke solenoids working order is any way we can test the solenoids choke?

2nd every time i start the engine i have to bump the gas is this normal ?

thanks

 

[iwombat]

Re: i'm new on boat Johnson outboard 150HP

First of all, if you ran the engine for any length of time w/o water you probably fried your impeller. I can tell you from experience that 10 seconds is all it takes (hooking up muffs is all fine and good, forgetting to turn on the water isn't).

To test the solenoid, disconnect the outlet tube and push the key in. You should see gas.

It's a little abnormal to have to pump the gas each time you start. If you have to do it right after an extended run I'd be looking at the float level. I wouldn't suspect anything just yet though.

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

thanks you all way helping me out

the solenoid i'm talking is for electric choke ( open and close choke in carb)

 

[iwombat]

Re: i'm new on boat Johnson outboard 150HP

Oh, in that case, take off the outer airbox cover and push the key in. You should see both choke butterflies close completely and evenly. The choke butterflies should open completely when you let the key out.

This not only checks your solenoid, but also your choke linkage adjustments.



Edit: Just so the language is clear. Turning the key - rotating the key clockwise or anti-clockwise. Pushing the key - pushing the ignition assembly w/ key inserted inward.

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

is my Johnson 1979 150hp have temperature warning? if yes where it locate?
found it on service manual it locate in the remote.

there is a switch top left of the power trim what it for?
i think this switch for up and down the trim

thanks

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

test today i found some water leaks is this normal ? please see second pic

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

today fist time in the water from many years
I test and run for an hour and haft
everything went good only hard to start with own gas and when it start
i can restart EZ
i did lean carb only no parts replaced

 

[nguoi_viet41]

Re: i'm new on boat Johnson outboard 150HP

any one can help me on this? maybe i need to replace Needle & Seat?

today fist time in the water from many years
I test and run for an hour and haft
everything went good only hard to start with own gas and when it start
i can restart EZ
i did lean carb only no parts replaced

 

[86invader]

Re: i'm new on boat Johnson outboard 150HP

have someone remove them or helicoil if needed ,i use my automotive machinst ,for bolts and stuff usually 20 a piece check heads with strait edge to make sure there not warped or you can pay shipping and i will send ya
a pair free ,getting rid of some of my stuff from 149 cid crossflow if any of yall need it

Have any heads?? or the exhaust gaskets? upper and lower. Im looking for a set of heads and the two exhaust gaskets.Also a lower unit. lol let e know how much thanks dave