McFerg

Ill Keep an eye out for this. Thanks waddlin

Z24 Engine. Replaced the fuel pump today and it turned over like a champ. It hasn't run this well for months. Thank you all for the input. This forum is the best.

I changed out the fuel filter and drained the tank 6 months ago. I decided to change the filter out again three days ago. It's my sons truck and he changed it while I was at work. He thought the fuel pump was the filter so he disconnected the hoses and the wiring, then he realized it wasn't the fuel filter. He reconnected it and Now it won't start at all. The motor turns over but acts like it's not getting any gas. I will look at it later today but perhaps the fuel pump has gone bad. What's the best way to know if the fuel pump is bad? I'm currently going through the youtube rabbit hole of how to determine if the fuel pump is bad...

When it gets back below 40 mph the power/fuel comes back.

Hey y'all. My '86 720 has started to buck at around 40 mph and loses power/fuel and bogging down. What are the possibilities for why? New Weber Carb installed 8 months ago. New spark plugs, wires and distro cap 7 months ago.

Curious how this Carb has been working out for you? I ended up sending mine back but have now registered the truck in Idaho to avoid the Smog check. I Will need to change my stock carb as it seems to be in "Limp Home" Mode, so i figure I'll throw one of these on it or possibly put forth the $500 or so for a weber. Has the China carb been working well for you?

Thanks Banzai. The bench seams are popping but it is pretty pretty clean.

I have a 720 in CA that I’m having a hard time getting smogged. I’m registering it in Southeast Idaho sometime next week. What part of Idaho are you in Teague? It’s not 4x4 though. White. Good shape. If you’re interested let me know.

Mike Is this it? https://www.instagram.com/p/CPm1lzHBT92/?utm_medium=copy_link

Hi y'all. What is the FPR...? Fuel pump regulator/The Electric Fuel Pump? is it the circular silvery part on the side of the carb?

I'll check that tomorrow Charlie69 and get back to you! I plugged the carb back in. Then decided to adjust the idle screw and mixture screw again. I had the mixture screw all the way in. then adjusted the idle. Then adjusted the mixture screw about a turn and a half out. Went back and forth and was really able to get it at a nice idle. It feels as good as it is going to get with my adjustments. It is so quiet I thought it might stall every time I stopped. But the engine stayed on. Black smoke is gone with normal driving but a small amount spits out the pipe for a moment when starting from stop signs. It smells much leaner at idle though and after the initial black out of the 1st puff it looks good. I saw the post about premium gas, an oil change, etc... and putting some alcohol in the tank. Perhaps that will make it happen for a smog check? Thanks for addressing all my concerns. I'm sure it feels like i'm spinning my wheels with y'all but it is great to have some support. Heaven knows my wife isn't on the same page as me. 🙂 I'll let you know how the smog check goes.

I pulled over and Checked the float. The fuel level is correct in the reservoir. Right at the dot. Could it be a BCCD situation? Solenoid? I screwed the idle mixture screw in tight and the engine didn't seem to react much. I screwed the idle speed screw all the way out and not much change either. Screwing it in tighter does bring the idle up.

Hey 720_Jeff I'm in LA county. My Stock Carb seems to be in Limp Home mode. You know of anyone that has put a Weber carb on? Do you think it would pass our smog check here in CA?

Yes. It might be little rich with the carb unplugged but it is no way near the amount of fuel burning through it before. CA is the worst. They are holding my title hostage until I can get them a clean smog check. Can I just put a Weber on this thing and Pass Smog? LOL I'll be perusing through the old posts looking into limp mode. Once again I way outta my element...or just at the end of my fuse...hahah. I love doing this kind of stuff though! I'll check my float tomorrow to see if it is drowning is gasoline just in case.