Fuel line leaks - Stupid Rookie questions!

[cparkerc]

I have a '70 25 hp Johnson with metal 6 gallon can. I am not getting fuel to the carbs using the bulb. I replaced the connector to the motor that was loose, but still nothing. Pumping the bulb does not do anything, am wondering if the bulb is the problem. What steps should i take to solve the problem?

second question - the vent on the gas can is on top of the gas fill cap. Should it be closed or open when trying to pump gas to the motor?

Thanks

CparkerC

 

[nymack66]

Re: Fuel line leaks - Stupid Rookie questions!

Clog pickup line in the tank, remove it if you can or use a compressor and blow back air through it ..

 

[Silvertip]

Re: Fuel line leaks - Stupid Rookie questions!

Ever suck on an empty soda bottle and notice what happens? The sides cave in do they not? That's because the bottle is not vented. Yes -- the vent needs to be open -- thats why there is one. The fuel you use must be replaced with air. Are you sure the primer bulb arrow is pointing toward the engine. If it's the other way you attempting to pump air into the tank. Take the connector off the end of the hose and pump the bulb. If you still get no fuel flow, the pickup tube in the tanks is either clogged or broken off.

 

[HybridMX6]

Re: Fuel line leaks - Stupid Rookie questions!

Personally, I'd get a new tank and line, bulb also. The newer fuel these days with ethanol is going to wreak havoc on that old metal tank. Anything stuck in it or any buildup in it is going to break loose and find it's way into your motor.
The problem itself could be the lines are blocked, or a blockage in the fuel pump, or the lines going from inside hood to carbs. I'd disconnect the fuel line from the pump and then pump the bulb and see if any fuel come out.

The vent should always be open on the tank, the motor can not pull fuel out of a vacuum.

 

[Rick.]

Re: Fuel line leaks - Stupid Rookie questions!

Clog pickup line in the tank, remove it if you can or use a compressor and blow back air through it ..

Good idea but make certain your cap is off and you will likely be splashing fuel up through the tank so be careful. It sounds to me like your hose is backwards or your bulb is pooched.

I personally have some metal tanks for show but most often find myself grabbing the plastic one when I'm going out with the boat. I did put an in-line fuel filter on my metal tanks that are somewhat corroded inside. Best of luck. Rick.

 

[Daviet]

Re: Fuel line leaks - Stupid Rookie questions!

Sometimes you have to hold the primer bulb stright up and down, to make the check valves work correctly. The check valves some times get stickey if they have been sitting awhile.

 

[cparkerc]

Re: Fuel line leaks - Stupid Rookie questions!

Thanks for the direction guys, appreciate it. Looks like the intake on the gas tank is clogged. Didn't have time to take it apart last night, but will tackle it tonight. I took off the connector at the engine side of the line and pumped the bulb, and nothing. Thanks for helping me narrow it down.

CparkerC