snooknreds2
New member
"Hello I am new to this board
"Hello I am new to this board and I apologize for this being my first post. I was referred here by some one on microskiff.com. I have a 1996 225 Evinrude Ocean pro (not on a microskiff) that I need help with. I am a mechanically inclined person with basic knowledge of motors but not sure where to go with this one.
For ease I will just copy and past my other post from microskiff.com
Thank you in advance for your help and thoughts!!
"So I have recently bought a new boat, definitely not a microskiff... It is a 23 foot Rabolo with a 225 Evinrude Ocean Pro. The motor has spark on all 6 cylinders as well as good compression on all 6 (110 on 5 of them and ~107 on the bottom port cylinder)
So got spark, got compression should run right!! Bought the whole rig with out seeing the motor run. Sprayed some starter fluid down the carbs and it came to life for a few bore strokes, everything sounded normal. Has to be a fuel system problem
Got the rig home, cleaned her up and hooked up a 6 gal gas tank with premixed oil. Disconnected the vro system (oil injection system)the way the manual says to do it. Tried to start it and nothing.
Since then I have check the fuel pump, fuel primer, fuel hose routing, recirculation hose routing. All word by word out of the manual and all check out with in spec. The guy told me that he had rebuilt the carbs so I have a feeling it has something to do with that, but I am stumped, short of taking all 6 carbs apart. But if you remember I suck at tuning carbs. I can rebuild them, get them roughly runing, can not fine tune to save my life. And that is with just one, this motor has 6!!
Any bright ideas here? The motor looks clean as a whistle. The carbs on this motor are made of plastic and supposedly dont gum up according to the guy I bought the rig from Shocked
any questions or info that I forgot feel free to ask. I am stumped here. Even went through the "fuel system trouble check chart" and pretty much checked everything off that they list as a possibility.
I really dont want to take this thing to a mechanic, not even because the money. I feel I should be able to do this... I just am asking for a little brain stimulus Smiley
Any suggestions are welcome... "
Next Post...
"I know I have spark and compression on all 6 cylinders, so it has to be a fuel issue. I have tried everything that I can think of short of rebuilding the carbs and testing the vacuum system.
Last night, I tried one more thing. I realized that all the pictures in the shop manual have a big plastic cover over the carbs, mine doesn't Shocked So I took off my shirt and folded it into a square, covered the carbs, had the wife turn the key and VVRRRMMMMMM Cheesy Cheesy Cheesy
So could it just be that I am missing the plastic plate and there is not enough back pressure on the carb side? Or My intuition tells me this is where checking the vacuum system comes into play Undecided
Compression check (which you've done)
check
Vacuum check (to verify intake vacuum integrity...no air leaks)
on my list of things to do, timing just was not right until now, will do this today!!!
Replace all filters in fuel system
check
Check fuel pump pressure (if bad replace pump)
check
Replace all spark plugs, set gap per specs
check
Check spark intensity with a spark gap tester
check
Check/adjust ignition timing
I am a scared chicken
Replace water pump and housing
Lets get it running first
Drain and refill lower unit (replace screw seals)
Lets get it running first
Change crankcase oil and filter (4 stroke)
NA
Grease all zerk fittings
check
Rebuild carbs, and synchronize the linkages.
I am a scared chicken
Check quality of fuel in tank (water or dirt contamination)
check
Replace fuel lines
check
I am still stuck, one step closer but still do not know what the problem is. What does the shirt over the carbs and it fires up tell you? Do you think it is the vacuum system or just the stupid plastic cover? To me the cover should not make that big of difference right?"
A friendly response...
Runs better with the carbs covered in shirt. Smiley (that'd be a neat bumper sticker)
Which means that she'll run choked.
Sounds like an air leak on the intake side, too much air, not enough fuel.
You said previous owner did a carb job, sounds like on reassembly something was left loose or off.
Last nights post
OK so other things have been in the way of working on this but here is where I am at.
Pulled off one of the 6 carbs and took it apart. Everything seemed clean and normal. There is a high speed orifice and a intermediate orifice, then a low speed jet. I dont think the guy could mess it up, pretty intuitive.
I did notice that on the side plate of all 6 carbs the gasket looked kinda warped. Seems to be flat in the area that is sandwiched between the throtle body and the plate but warped out side of it... like this:
So to recap:
Motor will run but have to use the shirt method to get it started the first time
Once started once, you can turn it off and come back a min or so latter and restart. Have not tried an extended period of time between starts yet.
Once running, motor bogs out if I gas it
Checked one of 6 carbs and it looks clean
SO... I would think it was a choke issue, but the fact that it bogs out when I give it gas contradicts that thought and says carbs are not tuned right. There is only the one low speed adjustment, everything else is a fixed orifice and can not be adjusted.
I dont know enough about carbs to not hate them at this point "
"Hello I am new to this board and I apologize for this being my first post. I was referred here by some one on microskiff.com. I have a 1996 225 Evinrude Ocean pro (not on a microskiff) that I need help with. I am a mechanically inclined person with basic knowledge of motors but not sure where to go with this one.
For ease I will just copy and past my other post from microskiff.com
Thank you in advance for your help and thoughts!!
"So I have recently bought a new boat, definitely not a microskiff... It is a 23 foot Rabolo with a 225 Evinrude Ocean Pro. The motor has spark on all 6 cylinders as well as good compression on all 6 (110 on 5 of them and ~107 on the bottom port cylinder)
So got spark, got compression should run right!! Bought the whole rig with out seeing the motor run. Sprayed some starter fluid down the carbs and it came to life for a few bore strokes, everything sounded normal. Has to be a fuel system problem
Got the rig home, cleaned her up and hooked up a 6 gal gas tank with premixed oil. Disconnected the vro system (oil injection system)the way the manual says to do it. Tried to start it and nothing.
Since then I have check the fuel pump, fuel primer, fuel hose routing, recirculation hose routing. All word by word out of the manual and all check out with in spec. The guy told me that he had rebuilt the carbs so I have a feeling it has something to do with that, but I am stumped, short of taking all 6 carbs apart. But if you remember I suck at tuning carbs. I can rebuild them, get them roughly runing, can not fine tune to save my life. And that is with just one, this motor has 6!!
Any bright ideas here? The motor looks clean as a whistle. The carbs on this motor are made of plastic and supposedly dont gum up according to the guy I bought the rig from Shocked
any questions or info that I forgot feel free to ask. I am stumped here. Even went through the "fuel system trouble check chart" and pretty much checked everything off that they list as a possibility.
I really dont want to take this thing to a mechanic, not even because the money. I feel I should be able to do this... I just am asking for a little brain stimulus Smiley
Any suggestions are welcome... "
Next Post...
"I know I have spark and compression on all 6 cylinders, so it has to be a fuel issue. I have tried everything that I can think of short of rebuilding the carbs and testing the vacuum system.
Last night, I tried one more thing. I realized that all the pictures in the shop manual have a big plastic cover over the carbs, mine doesn't Shocked So I took off my shirt and folded it into a square, covered the carbs, had the wife turn the key and VVRRRMMMMMM Cheesy Cheesy Cheesy
So could it just be that I am missing the plastic plate and there is not enough back pressure on the carb side? Or My intuition tells me this is where checking the vacuum system comes into play Undecided
Compression check (which you've done)
check
Vacuum check (to verify intake vacuum integrity...no air leaks)
on my list of things to do, timing just was not right until now, will do this today!!!
Replace all filters in fuel system
check
Check fuel pump pressure (if bad replace pump)
check
Replace all spark plugs, set gap per specs
check
Check spark intensity with a spark gap tester
check
Check/adjust ignition timing
I am a scared chicken
Replace water pump and housing
Lets get it running first
Drain and refill lower unit (replace screw seals)
Lets get it running first
Change crankcase oil and filter (4 stroke)
NA
Grease all zerk fittings
check
Rebuild carbs, and synchronize the linkages.
I am a scared chicken
Check quality of fuel in tank (water or dirt contamination)
check
Replace fuel lines
check
I am still stuck, one step closer but still do not know what the problem is. What does the shirt over the carbs and it fires up tell you? Do you think it is the vacuum system or just the stupid plastic cover? To me the cover should not make that big of difference right?"
A friendly response...
Runs better with the carbs covered in shirt. Smiley (that'd be a neat bumper sticker)
Which means that she'll run choked.
Sounds like an air leak on the intake side, too much air, not enough fuel.
You said previous owner did a carb job, sounds like on reassembly something was left loose or off.
Last nights post
OK so other things have been in the way of working on this but here is where I am at.
Pulled off one of the 6 carbs and took it apart. Everything seemed clean and normal. There is a high speed orifice and a intermediate orifice, then a low speed jet. I dont think the guy could mess it up, pretty intuitive.
I did notice that on the side plate of all 6 carbs the gasket looked kinda warped. Seems to be flat in the area that is sandwiched between the throtle body and the plate but warped out side of it... like this:
So to recap:
Motor will run but have to use the shirt method to get it started the first time
Once started once, you can turn it off and come back a min or so latter and restart. Have not tried an extended period of time between starts yet.
Once running, motor bogs out if I gas it
Checked one of 6 carbs and it looks clean
SO... I would think it was a choke issue, but the fact that it bogs out when I give it gas contradicts that thought and says carbs are not tuned right. There is only the one low speed adjustment, everything else is a fixed orifice and can not be adjusted.
I dont know enough about carbs to not hate them at this point "