Great video: Just took mine out (Generator with GX690) and pushed the pin back in (was really stuck after only 3 months of sitting) and worked it a little, then re-installed. Started right up. Be sure to shut the fuel off under the tank first before pulling the solenoid out - you'll get a little fuel on the garage floor, but it will keep dumping out unless the fuel petcock is closed. Put a rag under the engine when you pull the solenoid free - you will get some fuel flowing out. I used a 19mm deep, thin wall socket - you'll see why a thin wall is necessary when you look into the area where the solenoid is mounted. 3/4" would work too. You'll have to move a little rubber vent hose out of the way to access the solenoid, use needle nose pliars to re-fit the breather hose. The electrical wires have to be gently moved aside also. Very easy job. I made a mental note to at least once monthly turn the key to the first detent in order to work that solenoid and prevent it gumming up again!

Honda calls the part a "fuel cut-off switch." Its basically just a solenoid for the carburetor to let fuel flow into the bowl. Usually they get gunked up from bad gas and need to be cleaned with carb cleaner. Be careful when you take it out you don't lose the pieces! If your unit starts up then dies, check the rubber "vacuum" hose that goes from the carburetor to the mechanical fuel pump. This is what makes the fuel pump work. I've seen the hoses get cracked or mouse-chewed and cause the engine to start and then die intermittently. Another thing mentioned below is the low-oil shut down. The switch is on the side of the crankcase (bottom near the oil drain plug.) The switch makes contact with ground to kill the engine so make sure the wire that's attached to it isn't grounded.

Spot on fixed our issue. Thank you so much. We found a mouse nest behind the cover and it had chewed through the wire. Todd R.

Sawmill with boat tank,water in my fuel , gel of stale fuel made solenoid jam. Removed solenoid with chainsaw plug spanner type thin wall tube socket. Remote location so this video made my day.

Just like stuck float not allowing gas to Carb, but easier to fix. 15 Min fix. Thanks for posting

Thank you I’ve been trying to figure this out. Recommendation put the part number on the video. Thanks again.

Thanks for the video , got a good deal on a gx630 for my boat and it would start but ran very poorly and it wouldn’t run more than 5 sec unless I kept squeezing the primer build. $30 part and it runs like a charm

thank you for this info ...this was what was wrong with my generator..had not started it for a couple years and the gas in the carb turned to shelac and gummed up the little rod that releases the gas..after I get through this hurricane i will drain the gas and let it run dry..thanks again

Thank you for posting this video! You just helped me fix my Honda GX620.

Thanks for making this video

Mine's a GVX630, but I'll check tomorrow to see if it has such a thing. Already dumped and cleaned tank, verified fuel lines, replaced fuel filter and fuel pump today. Still fires for a second at full choke and dies, but runs on starter fluid. Irritated.

Hell ya !! Pop it out and take plyers to it to loosen up and works now !

Bro….just wanted to say thank you 🎉

Thanks i just cleaned the solenoid was little rusted because i wasnt using during winter

Thank you very much, it worked for us!

16200-Z6L-003 - Honda Fuel Solenoid GX630, GX660, GX690

Boss for the Honda GX 630 coil equation that matches what it is

Boss for the Honda GX 630 coil equation that matches what it is mine also died on the other side

Thanks. Video helped.

Thank you this solve my problem

It worked! Thanks!

Just take it out and clean it with brake cleaner 👌the spring gets stuck due to the buildup.

Hi, I had the same problem. Solenoid doesn't take "click". Now I clean it and it works fine, but I'm not sure that it should be in two pieces when I removed It.

Thank you for the video

I have a gx670 and does the same thing it's on a deere 420. It does start at times, any suggestions. I've replaced all fuel lines, filters and waiting on fuel tank filters to tear down to check these. A new carburetor has been added. I'm wondering if the person I bought it from had it sitting longer than he told me but the cost was good enough. I remove the lines from the tank and fuel comes out. The fuel pump is new also.

Good morning friend, I have a Honda GX 630 engine that explodes a lot when I accelerate fully. When I decelerate it returns to normal. What could be causing this?

I have one that is fires up then stops, it will do that again and again but just won’t keep running. If this solenoid was faulty it would prevent it from running at all wouldn’t it?

Whats the name of that part? Do you have the part number? My GX660 just stop working, I have spark, fuel, oil and my fuel pump is working fine. I turn my key and the motor turn over but it won’t start. It’s like the machine is not getting fuel. I think this could be my problem.

Phoenix Clean, Do you have a part number or a part name for that. I need to prder one.

Many thanks

okay so our engine turns on and runs but water wont come out from the gun

Hi thank you for the info can you send me the link to buy relay for carburetor thanks in advance.

Can you bypass it! I don’t have time to wait for a new part

Thanks Tim! That was it! 👍

👍👍👍👍

Hello where do you get your replacement/maintenance parts from?

Sounds like fuel switch on carb not working to me

Mine gets spark and runs on starting fluid. You’re saying this could be the issue?

was it able to dry crank at all?? before the fix. Mine will not turn over at all

Question tho will it Flood the engine with fuel trying to start it ??

What that relay called?

is there any way to test it

Pull the pin out. It isn’t needed.

would it not start on starting fuel

What is that piece called?

mine was froze

Great video and great comments from everyone 🎉. 🤎

Sounds like fuel switch on carb not working to me

👍👍👍👍