79 6hp e-rude wont hold wot

[wiskerchaser]

I have a 1979 6hp E-rude; it will run up to wot for about 30 seconds then die down to less than half throtle. Was told the high speed jet causes that, so i rebuilt the carb. Motor still runs great at low to mid range throtle, but same reaction at wot. I can pull the choke half way out and get it to run a little over half speed with throtle in wot possition. Any suggestions would be greatly appreciated, Thanks.

 

[Silvertip]

Re: 79 6hp e-rude wont hold wot

Weak fuel pump, fuel pickup problem, bad primer bulb, clogged fuel tank vent, to name a few.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

new fuel tank, new fuel line, and fittings, new bulb. If pump is week shouldnt motor pick pick back up when squizing bulb while running? It doe not and bulb is tight. This is my delimma.

 

[Basscat 1]

Re: 79 6hp e-rude wont hold wot

Sounds like your floats may be out of adjustment causing the engine to starve for fuel.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

how should float set in relation to carb? Can you tell me?

 

[chris in va]

Re: 79 6hp e-rude wont hold wot

I can tell you my rebuild kit said to have the float level with the carb on my '77 9.9.<br /><br />I'm starting to wonder on that myself...

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

can anyone tell me if this sounds like a float problem and if so were about the the float should be set

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

also could this possibly be from motor running hot, because it ran fine and one day comming home we were going across the lake and it just dropped rpms, and i have had this problem every since. motor pees good though, just curious putting new impeller in today.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

also i tried moving float up and didnt notice any change

 

[Basscat 1]

Re: 79 6hp e-rude wont hold wot

One other thing you might check is the coil.<br />Possibly a weak coil can also cause problems as it heats up.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

thanks for the help im going to put an impeller in tomorrow and ill check the fire too after it heats up.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

ok I put in impeller checked coils and no improvement. I did notice when i took the hood off motor picked up and ran good. Only with the hood off would it run good . Checked hood for breather holes and it has none, should there be some, or am i missing something. Any help would be appreciated.

 

[Basscat 1]

Re: 79 6hp e-rude wont hold wot

Just curious. How did you check the coils?

 

[Xcusme]

Re: 79 6hp e-rude wont hold wot

Stump...I see an exhaust/powerhead gasket replacement in your near future. Leaking exhaust under the cowling is choking your motor.

 

[wiskerchaser]

Re: 79 6hp e-rude wont hold wot

would have never guessed that. Thank you so much! It know runs great. I appreciate the time ya'll spent with me, but the exhaust gasket was it.Thanks Excusme!!

 

[Xcusme]

Re: 79 6hp e-rude wont hold wot

Hey! Glad that sorted things out for ya. Sometimes, things aren't always as obvious at first glance. Feel free to stop back by with any other questions, and thanks for reporting back with your results. It helps others who might have the same problem.