can't get up to speed

I

Itec01

Cadet
Joined
Jun 10, 2002
Messages
22
Hi fellow boaters,<br /><br />I bought a 1959 Johnson seahorse 18HP.<br />It ran good for 20 min. and then started getting weaker and weaker. It now runs at about 40% of what it did.<br />I checked coils, plugs gapped at .030, carb compression points gapped at .020. Just am running out of things to do. Any suggestions would be appreciated. I have run out of things to try.<br /><br />I have a service manual on order, but the fish won't wait, haha. :mad:
 
B

boatca

Cadet
Joined
Apr 21, 2002
Messages
11
Re: can't get up to speed

Had similar problem<br />Check yer Fuel tank lid If yours is old like mine there may be no pressure release valve and builds up vacuum in tank so starves Engine. loosen it.<br />Also Check your Fule line from tank to Motor if Bulb is getting wore or cracks. I replaced mine and works well now.<br /><br />Oh yeah forgot to mention sometimes when it bogs down the spark plug gets carbed up mine did and I pulled it and cleaned it was good...
 
I

Itec01

Cadet
Joined
Jun 10, 2002
Messages
22
Re: can't get up to speed

Thanks boatca,<br /> I'll try that fist thing.<br /> I'll let you know if it works
 
You must log in or register to reply here.
Top