OK, so I buy and resurect an old 1969 25 hp. Johnson. I put in a new impeller, change the plugs, decarb, etc.
She runs great at idle in a barrel so I decide to boat test her. She won't run at WOT, so I close the choke plate and she'll come up and run great. If I close the choke plate with the choke knob, I don't get the same results.....for whatever reason.....which is really weird, why?
OK...........so I pull the carb apart and soak the lower half in carb cleaner overnight since it has high speed issues, but runs great at idle. I cant get the high speed nozzel to unscrew from the upper half of carb body without fear of buggering it up bad or breaking it so I left it in and didn't mess with the upper half of the carb.
The lower half of the carb didn't look bad at all and appeared to be pretty clean, other than a tiny bit of gunk in the high speed orifice plug and it wasn't much at all. The weird thing I noted in my carb cleaning was that on the high speed nozzel there wasn't a gasket on it like I've seen on other carbs I've cleaned up.
I didn't invest in a carb kit, so I just put it back together after cleaning it and blowing it dry with compressed air.
Got it out on the lake today, and it ended up being the same crap different day with no change, and no WOT. It will idle down to little or nothing, but she still won't produce the RPM's unless I close the choke manualy with my finger on the lever and not with the knob??!!!??
Can missing a gasket on the high speed nosel interfere with WOT?
I've cleaned up some gum and varnished carbs before and they've run great afterwards.....did I forget something?
She runs great at idle in a barrel so I decide to boat test her. She won't run at WOT, so I close the choke plate and she'll come up and run great. If I close the choke plate with the choke knob, I don't get the same results.....for whatever reason.....which is really weird, why?
OK...........so I pull the carb apart and soak the lower half in carb cleaner overnight since it has high speed issues, but runs great at idle. I cant get the high speed nozzel to unscrew from the upper half of carb body without fear of buggering it up bad or breaking it so I left it in and didn't mess with the upper half of the carb.
The lower half of the carb didn't look bad at all and appeared to be pretty clean, other than a tiny bit of gunk in the high speed orifice plug and it wasn't much at all. The weird thing I noted in my carb cleaning was that on the high speed nozzel there wasn't a gasket on it like I've seen on other carbs I've cleaned up.
I didn't invest in a carb kit, so I just put it back together after cleaning it and blowing it dry with compressed air.
Got it out on the lake today, and it ended up being the same crap different day with no change, and no WOT. It will idle down to little or nothing, but she still won't produce the RPM's unless I close the choke manualy with my finger on the lever and not with the knob??!!!??
Can missing a gasket on the high speed nosel interfere with WOT?
I've cleaned up some gum and varnished carbs before and they've run great afterwards.....did I forget something?
