Gas leaks when plugged in

Your valve cover gasket needs replacing

If you are turning the gas off when turning off engine and gas is leaking onto the plugs you may need to rebuild carbs and put in new needle and seat!may want to also look into proper float level!but please make sure your gas is always off when engine is not running,Hondas have always had issues with fuel leaking into cylinders and on plugs when left on.

About when the sparking starts you should hear a louder snap that should open the gas valve. If you hear this and if there is gas pressure the spark gap is in the correct location it will light (you should also smell gas). On the other hand if any of these things aren't right it won't light. There is a plug on the incoming side of the valve that can be loosened to tell if there is gas available. If you leak enough gas to purge the gas line then that will eliminate a possible air problem. Make sure there is no source of ignition anywhere near during the purging process. Once the plug is closed tightly and you have waited 5 minutes you can try again. If you can't hear the valve come on then you can use a volt/ohm meter to measure the voltage going to the coil of the gas valve. When the ignitor is sparking there should be 115 VAC between these two wires. If you have further questions I should be able to answer them.

It is possible there is no gas pressure or the gas pipe contains more air than gas. There is a port with a plug in it close to where the gas enters the valve body. If you carefully loosen to plug a small amount of gas will leak out if there is gas pressure. Make sure you don't screw the plug all the way out or you may loose it. If there is no pressure then you know that a valve is turned off upstream of the heater somewhere. If there is gas pressure then when the gas valve is energized you should be able to hear gas or air coming through. If you hear this gas and the ignitor is not able to light it then either there is something wrong with the ignitor or the gas has too much air in it. Another possible problem is if there is dirt or rust in the gas line it could clog parts of the system like the a regulator, valve or orifaces. I hope this helps.

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I don't think it is your O2 sensor especially from the catylatic, because you mention smelling like gas and presence of gasoline. "Plugs" hopefully referal to the spark plugs, try to trace where you see gasoline and where it is coming strongest from. This is a case of leaked fuel line, fuel rails, fuel injectors.
1) Trace the source of where it is wet, there maybe a leak somewhere and you car is not getting the amount of fuel pressure to combust and thus make the engine dies. 2) Check your fuel injectors, fuel line rail, could be leaking or become loosen and is spraying gas when the fuel line is pressured into the spark plug socket. 3) You may have a dead spark plug one or more, and isn't combusting the gasoline, thus creating no compression leading to engine dying. 4) Leaking head gasket. Best is tracing where the gas is spewing from. That should help.

Hi!!

The breather pipe plug is actually a PCV valve that is stuck open. You can flush it clean with CarbClean, until you hear a rattling noise inside when you shake it. OR you can replace it. AutoParts stores carry tune up items for most small gas engines.

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Sounds very much like you have some sort of air leak in the induction system, check the Sync Ports have their rubber plugs installed. Check for any hissing noises, if you hear them follow to the source

You have a miss fire. pull the spark plug wires off the plugs one at a time until one dosnt make a differance. This plug is not firing right and not burning the gas. If you get spark on the plug wire(it might shock you a little if your not carefull just hold it with one hand and dont touch the car with your other) then all you need to do is repalce the plug it self. if the wire is not sparking (if you dont hear sap sap when u pull it off) then you will need wires and maybe cap/rotor.

i think you mean freeze plugs, any way there will be three on each side of engine block below exhaust manafolds. to get to the one on the right side clear to the rear of engine, the starter will have to be removed. if its the one in the middle, motor will have to be jacked up and motor mount will have to be removed to get to it. also there are freeze plugs on back of engine block, behind flywheel if one or both of them are leaking trans. will have to come out to replace them. also chk. the rear of intake were intake, and head, and block come together, same in the front could be leaking there also. as far as your truck not wanting to start i will need a little more info to help with that, like is it gas or diesel? if its gas does it have spark? can you hear fuel pump run and relay click? i will try to help the best i can but i need the info.

I have a rancher 55 and it was leaking gas, i replaced the gas cap. That solved the problem.