1985 Evinrude 175

[timmyt66]

the engine has power with no load under it when in water under a load it has no power just bogs what could it be?

 

[JB]

Re: 1985 Evinrude 175

It's not making power on all cylinders, Timmy. It will seem like it is okay running on 2 with no load on it.

 

[KYHunter2]

Re: 1985 Evinrude 175

I'd start with a compression test, spark test .

And go from there.

KYHunter

 

[imported_IL_Glastron]

Re: 1985 Evinrude 175

Yes,
I had this issue.. Whats the compression on it? I eneded up w/ a new powerhead..:/

 

[AlanR]

Re: 1985 Evinrude 175

Sounds low on compression LOL. Ok its really low on compression they should be around 100 for good preformance. Check your head gasket to see if its blown

 

[timmyt66]

Re: 1985 Evinrude 175

all 6 cyl are at or above 85

 

[emdsapmgr]

Re: 1985 Evinrude 175

These engines do not run a lot of compression. Did you take all the plugs out when you did your compression test? Put a timing light on each plug wire when you are on the water, and you sense that it is bogging. Check for strong contstant flashes from each plug wire. Esp watch for intermittent misfires.

 

[timmyt66]

Re: 1985 Evinrude 175

would bad coils and or plug wires cause it to be this way?