bogs down

[Franky219]

Hi all. My 1972 9.5 Evinrude has run perfect until this last weekend. After going WOT for awhile, I throttled down to fast idle speed. When I went to open it back up the engine bogged down then died. I had to chole it to get it to restart. It ran good for a short while then bogged down and died again.
It restarts but will bog down and die when I give it the gas. I'm using semi synthetic blend at 50 to 1 and have added a little Seafoam to every tank for
to keep the carbon from building up. It almost feels like its fuel starved or flooding out, I'm not sure which. Any ideas? Thanks

 

[HighTrim]

Re: bogs down

have you tried pumping your bulb when dying to see if it picks up?Have you checked fuel lines for leaks , either air or fuel. When was the last carb rebuild ?

 

[Franky219]

Re: bogs down

Hi. I sqeezed the bulb and it picked back up but then the next time I tried that it did no good. The engine still died. The engine sat for several years before I bought it so I have no idea about the carbs being rebuilt. It seem to pump water good but I thought I'd change the pump and impeller at the end of the boating season anyways. Can I rebuild the carbs myself? I'm not overly mechanical. Thanks

 

[Franky219]

Re: bogs down

PS. The fuel tank and lines are brand new this season.

 

[HighTrim]

Re: bogs down

If pumping the bulb picks it up you could have a faulty fuel pump, should look into testing it. It is always good preventitive maintainence to change the impellar immediately on an unknown age of one. The part is cheap, but the consequences of its failure are very expensive. Changing the impellar and cleaning the carbs are fairly easy to do for novice guys with a decent set of tools. It will take you longer to get the carb off and soak it than it will to install the new parts. Give it a good soaking in a bath, blast all the orifices with compressed air and get into all the nooks and crannies with wire if you have to . A manual would be a great investment that will pay for itself many times over you will find, most guys on here will back me up on that. When it comes time to do either job, there are always very knowledgeable guys on here to help you out. Good luck.

 

[Franky219]

Re: bogs down

Hello. took boat out today and figured out that if I pull the choke out when it starts to die it picks right back up and runs fine for awhile. It does this more after its been run awhile than when I'm first starting out. Also I pulled the spark plugs out today and they were dry. Does that mean I'm running to lean? I would have thought they would be at least a little oily. I'm not at all familiar with outboard motors at all. Thanks