97 Evinrude 225 Ocean Pro - Idle/Cold Starts

[97Robalo]

I have a 97 Evinrude Ocean Pro carbed 225 v6.<br /><br />When I try to start the engine cold it always starts right up (I always prime the bulb), but will not stay at an idle. I can keep the engine running by disenegaging the gears and giving it more gas. <br /><br />When I go to put it in gear to drive off it usually dies,,, I restart it, give it gas again and it works fine. As I itially start to plane and give it more gas it jerks like its not getting enough gas or air is in the line, as long as I have someone pump the bulb as I am giving it more throttle it evetually after about 15 seconds starts working fine. <br /><br />Now the weird part is after this ritual each time I go out the engine runs great, idles great with out any problems at all until the next time I take the boat out.<br /><br />Can someone please help or have any ideas? I have already replaced the primer bulb and the gas filter. I am having a problem figuring out what it is because it runs so great after this process.<br /><br />Thanks in advance for the help.<br />Eric

 

[ripopperman]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

Have you looked at the fuel pump? Maybe it's got a pin hole and it's losing the prime that way.

 

[97Robalo]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

I have not look at the fuel pump. I will take a look at it. Maybe there is a pine hole in the diaphram or fuel line. I am just trying to get some ideas together. <br /><br />If there was a pin hole would that cause it to leak gas or suck air in?<br /><br />After reading the board this is what I have come up with to check. If any one else can think of something please let me know.<br /><br />Pin Hole / Air Leak in Fuel Lines or Fuel Pump Diaphram.<br />Antisyphon valve<br />O-Rings in fuel connectors<br /><br />Does anyone think this could be a carb problem?

 

[Slammer3]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

Have you drained the fuel filter? Did you check all carbs to make sure the fuel lines are on good and tight? Sounds like a fuel line problem? Here is a way to find out if its a bad fuel or possible fuel line problen,get a portable tank,and hook it up,make sure you add oil to the gas mix,run it and see if this solves your problem,if so,start looking at the fuel line or filters.

 

[97Robalo]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

I just replaced the fuel filter and checked for water and everything looked good. I will check the fuel line and carb lines when I go down this weekend. That is a good idea to hook up a seperate portable tank. That will help me narrow down the problem.<br />Thanks

 

[Bradster941]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

Yup, try a seperate tank.<br /><br />One other thing is the pick up tube in the fuel tank could be partially plugged.<br /><br />Also make sure the vent tube is clear.

 

[97Robalo]

Re: 97 Evinrude 225 Ocean Pro - Idle/Cold Starts

I will check the vent tube also. I thought about the pickup tube being blocked or maybe the antisyphon valve, but it runs so well after at WOT. Its just in the monring at when I first start it up, it just will not stay at a idle, until I drive it and pump the bulb. Almost like there is air in the line and once the air gets out it works fine...<br />Thanks for the help.