Logo
FULL SITE MENU

loosing power

T

thetone

New member
My 1980 Evinrude 4.5 hp model E5RLCS is loosing power. I can get to full speed for about 100 yards then it starts loosing power. I can down throttle and stop it from stalling and it will do the same thing again. The carburetor has just been rebuilt and I can see no fuel leaks.

Any suggestions on what the problem might be?
progress.gif
 
Check for air leaks in your fuel lines, primer bulb etc. Sounds like you are possibly partially losing the prime on the fuel supply. Also check the fuel screen and screen cover gasket on your fuel pump. Sometimes a fuel system can bleed off the prime without outwardly leaking fuel out of the system!
No guarantees but that is where I would start!

Good luck and let us know how it turns out!
 
Thanks for the replies! I will replace the fuel lines. I am not sure where the "float" is located. This engine has an internal fuel tank so there is no bulb to prime. I will also check the gap on spark plugs.
 
kimcrwbr1 said:
It could be the vent on the fuel tank or the strainer is plugged, Pull the fuel line off the carb and see how fast fuel flows out the hose. If real slow blow back into the tank with the cap off and see if it increases. If so clean out the fuel tank, replace the strainer and fuel line and clean?rebuild the carb. I allways add a inline fuel filter for giggles.
Click to expand...
The carb was just rebuilt and I know the vent is working I ran it with the cap off. There is an in line filter which is clean. Where is the strainer located?
 
Back
Top