150 ocean pro working on e cylenders only

[carlosburitica]

so i have an evinrude 150 1994 ocean pro that i just got, when it got it it ran fine out the water, took it for a test drive and idled fine for couple miles, got out the inlet an at wot berelly got 25mph i figured old gas, cloged filter and carbs, cloged fuel vent.
got home a removed fuel and added fresh one, new fuel/water filer, plugs, cleaned carbs (quick cleaning before a rebuitd) checked fuel lines, installed a new primer solenoid old ona was leaking. i have no air in the fuel system. perfect and running out the water.

took it today in hte ramp and had a hard time to star it did, but for some reason i was feeling that i was not getting spark of was flooded. well removed sparks and starbord plugs were like new, and no spark on that side. so it runs but only 3 cylindes, the other just don't get spark, compression is even in all cyl.

what you guys think...powerpack went bad, or it is running on safe mode,...cutted 1/4" of spark p wires and reinstalled boots and nothing no spark at the starbord side...head gets hot but i am sure is from the friction caused by the pistons. test ligth no spark.

other side works perfect, plugs look brown from a good mix...my only guess electrical please help

 

[dish]

Re: 150 ocean pro working on e cylenders only

Not sure if your model has this but check the shift assist switch.It would be on the starboard side of motor under the throttle cables.

 

[tashasdaddy]

Re: 150 ocean pro working on e cylenders only

this should help: http://www.boatpartstore.com/page35.asp

 

[daselbee]

Re: 150 ocean pro working on e cylenders only

Shift switch. As stated above, look below the area where the shift cable attaches. You will see a switch assembly on the shifting mechanism. Follow the wires back to the powerpack, and simply disconnect. If the shift switch is killing the starboard bank, this will prove it.
If it shifts easily, with no effort to get it in and out of reverse, you can just leave it unplugged. Or you can fix it. Your choice.

 

[carlosburitica]

Re: 150 ocean pro working on e cylinders only

Re: 150 ocean pro working on e cylinders only

so you guys think the switch, but why are just three cylinder of one side firing...i will check it out when i get home, hope is this..
any other suggestions????
thank you

 

[daselbee]

Re: 150 ocean pro working on e cylinders only

Re: 150 ocean pro working on e cylinders only

so you guys think the switch, but why are just three cylinder of one side firing...i will check it out when i get home, hope is this..
any other suggestions????
thank you

Shift switch KILLS three cylinders in order to momentarily ease the stresses on the gearcase. It only kill the cyls when shifting. That's the way it is supposed to work. If yours is stuck closed...three cyls dead.
Jut unplug the black/yellow wire from the switch at the pack. Re-check spark on starboard side.

 

[carlosburitica]

Re: 150 ocean pro working on e cylenders only

well like that idea, will let you guys know tonight. thank you

 

[carlosburitica]

Re: 150 ocean pro working on 3 cylenders only

Re: 150 ocean pro working on 3 cylenders only

well disconected the shift assy switch and still no spark on the starbord cylinders...now my questions is...
powerpack or strator coil.....

something funny my motors starts even on gear does this have something to do with my problem...

tach working only sometimes...usually when cranking at start, when engine starts eighter die or goes up and down in revs like a bad contact somewhere.

 

[jonesg]

Re: 150 ocean pro working on e cylenders only

Order the service manual.
wwww.outboardbooks.com

Do a compression test.

Order a DVA adapter and find a regular analog multimeter to fit the probes.
http://www.usatoolwarehouse.com/usatoolwarehouse/ESI-640.html

Follow these directions for your optical ignition.
http://www.maxrules.com/fixomcoisignition.html

Or take a leap of faith and order the PP from CDI.

I also have the same 1994 150hp, good engines but you have to do the maintenence, do it all.
Change the gear oil, pull the prop , check for fishing line on the shaft. Change fuel filter between the carbs,
check fuel line clamps.. inspect all the lines for seeping fuel/oil.
Follow the manual .
If you don't know when...change water pump, rebuild carbs.

 

[carlosburitica]

Re: 150 ocean pro working on e cylenders only

Order the service manual.
wwww.outboardbooks.com

Do a compression test.

Order a DVA adapter and find a regular analog multimeter to fit the probes.
http://www.usatoolwarehouse.com/usatoolwarehouse/ESI-640.html

Follow these directions for your optical ignition.
http://www.maxrules.com/fixomcoisignition.html

Or take a leap of faith and order the PP from CDI.

I also have the same 1994 150hp, good engines but you have to do the maintenence, do it all.
Change the gear oil, pull the prop , check for fishing line on the shaft. Change fuel filter between the carbs,
check fuel line clamps.. inspect all the lines for seeping fuel/oil.
Follow the manual .
If you don't know when...change water pump, rebuild carbs.

well compression is good and even at wot in all six cylinders.
thank you for the info and tonoght will check the ignition sys. your chart is vety helpfull, let's see what happend if not i guess will try fist to buy a powerpack, the original owner of the boat said he replaced it 5 years ago, syntomes were little differen uneven rpms, up and down and temporary spark loose...so what is the live of a power pack, i have two 1998 mercurys that i own since day one and never has an ignition problem, other than starters and trim motors...

now that i been working in thes eninrude found that is simple but the optical ignition is getting me frustrated. will let you know what is going on this the cicrut test. thanl you

 

[daselbee]

Re: 150 ocean pro working on e cylenders only

Well, sorry the shift switch didn't fix it for you. It is an easy, free test to eliminate.
I will leave it with you, because I know nothing about the optical ignition systems.
Good luck...

 

[jonesg]

Re: 150 ocean pro working on e cylenders only

well compression is good and even at wot in all six cylinders.
thank you for the info and tonoght will check the ignition sys. your chart is vety helpfull, let's see what happend if not i guess will try fist to buy a powerpack, the original owner of the boat said he replaced it 5 years ago, syntomes were little differen uneven rpms, up and down and temporary spark loose...so what is the live of a power pack, i have two 1998 mercurys that i own since day one and never has an ignition problem, other than starters and trim motors...

now that i been working in thes eninrude found that is simple but the optical ignition is getting me frustrated. will let you know what is going on this the cicrut test. thanl you

THE CDI powerpack is said to be superior, I went cheap and got the sierra.

Packs don't last forever, I looked at the innards of a pack, it looked like a transister radio with lots of diodes and other components on a circuit board, no way they can last a long time.

I had the exact same symptoms as you, my mechanic at the time said the odds of 3 coils going out at the same time and on the same side are silly, so I swapped the pack and that was it. I only got the DVA after the fix for future problems.

The nice thing about optical systems is the optical sensor is cheaper than the conventional timer system part.

 

[carlosburitica]

Re: 150 ocean pro working on e cylenders only

got a new sierra power pack fire it up, got spark to al cyl. took it to the ramp and finally, got on plane lot of power, it came back to life.

 

[jonesg]

Re: 150 ocean pro working on e cylenders only

Now fix the tach.