Evinrude 70hp Hustler

[wikelam]

I recently purchased a boat with a 1974 evinrude 70hp hustler motor. The motor is appears to be in excellent shape. I have started it but in water when put in gear, it stalls and dies. when out of water it will rev up in gear. It was winterized so i do not think that old gas gummed up the carbs. i have changed all plugs and it seems to firing on all 3 cyls. It does have a melted rubber type of goo running down from the stator. Some one told me this meant the stator was bad. Will this cause this type of problem?

 

[JB]

Re: Evinrude 70hp Hustler

Hi, Wikelam.<br /><br />You may have a bad stator, but that has nothing to do with your other problem.<br /><br />My guess is that the idle was set with the engine not under load, in the water. This is a common error.<br /><br />It is possible that you have other problems, though. You need a compression check and you need to verify that all three cylinders are making power. If you can disable the spark to a cylinder at idle without affecting the idle speed you have a dead cylinder.<br /><br />Let us know what you find.

 

[25xs Mercury]

Re: Evinrude 70hp Hustler

I suspect that you are needing a new top main crankshaft seal... You mention the black goo and it's probably being rinsed off the ignition components by gas leaking around the top seal.<br /><br />Try putting it in gear and immediately throttling up and see if it runs better at higher rpms... Replacing the top seal might be a job that can be done without pulling the powerhead apart.<br /><br />Keep us posted,<br /><br />Tom