25 hp Johnson Won't Accelerate
Some say to hold it the other way, with the float hanging down and measure from edge of the bowl to lowest edge of float and it should be...uh...1 1/8", I think. I'm having problems which I'll explain in a bit.
It's a bit of a long story, but briefly, I felt the fuel pump wasn't putting out, so put a kit into it, too. Not rocket science, but the way it's set up it does take care and precision on assembly.
Put the whole thing together, connected the tank, full of fresh 50:1 and started it up....tried to. This motor doesn't have a choke, just a fast idle control on the single lever control. No choke plate in the carb. It would crank hard but not fire. Fast idle didn't help. Finally, I held the key in one hand and when I started cranking it, I put the other hand over the carb inlet. Boom - that thing was running instantly....then died.
Playing patty-cake with my "choke," I was able to keep it running until after a minute or so it smoothed out and kept going on its' own. Then adjusted mixture till it smoothed out.....sort of. It still will go rrrrrrpoprrrrrpoprrrrr....etc.
Yesterday I launched it in the river and started out. Fine, but when I got clear of the no wake zone and gave it gas, it started to rev and go, then died. Restart and same thing. It'll give a brief acceleration, then die back to idle.
OK, I "think" the float level should be good, so pulled the output tube off the fuel pump and put a short piece of tubing from the outlet into a jar. When I started it, it just gave splatters of fuel, so figured that's why it wouldn't accelerate.
I pulled the fuel pump back off and dis-assembled it, then watched YouTubes for a review and went back out to re-assemble it. It's a bit fussy to put together but I believe I've got it right. Started the motor and all was the same as before.
Fuel pressure gauge at O'Reilly's was already rented out, so came home, started it up and put my digital tire pressure gauge on the schrader fitting on the thingie beside the carburetor and tee'd into the fuel line. There was enuf pressure to activate the gauge and light it up but no pressure registered. It has new batteries.
Checked all the hoses, connections....all look good, clean, tight and solid....?? I'm baffled. Why can't I get that fuel pump to put out ?? There's a small tube comes from a fitting high on the rear of the side plate on port side that just goes down under the powerhead and ends. Not connected to anything. Is that just a vent ??
Any Ideas will be very welcome - I want to go out of Crystal River and chase Grouper while they're still open.