Should I be concerned

[wannarsv]

Getting in ready for rolling thunder. Heading out in the morning. I synced the carbs this afternoon, & noticed after I did, when I turn the key back on the fuel pump is "clicking" faster than normal. The bike was good & warmed up, but what concerns me is if I turn the key off then right back on the pump is clicking...doesn't make scence to me as the bowl should be full. Should I be concerned or is this one of the signs of a fuel pump going out? Any help appreciated.

Thanks, Melvin

[XV1100SE]

Did you check your petcock to make sure the fuel is on ? If you turned it to off it isn't getting fuel and will just click. Also...if your fuel is low and the main "tank" isn't high enough you might have to turn it to reserve.

[etcswjoe]

The pump is gone to click for 5 seconds regardless if the bowl is full or not when you first turn it on you just don't always hear it it will be more noticable if the fuel is low or has been off.

[V7Goose]

The pump is gone to click for 5 seconds regardless if the bowl is full or not when you first turn it on you just don't always hear it it will be more noticable if the fuel is low or has been off.

This information is NOT correct. The fuel pump is only activated by the lack of back-pressure on the line from the carbs. If they are full, as they always should be for at least a few hours after the last time the key was turned off, the pump never activates when the key is turned on.

 

One cause of this problem is a stuck float valve where the gas just gets pumped out the vent line so pressure never builds, but that should be obvious if it is happening.

 

In your case, if the petcock is turned on and the tank has gas, then I'd suspect a dirty fuel filter has prevented the bowls from filling. Even so, if the bike will start, then there must be SOME gas getting through, right? So let the pump go through the 5 second cycle several times by turning the key on and not starting it multiple times. If the carbs ever do fill, the clicking will slow down as the pressure builds. If that never happens after about 5 cycles, I'd look closer at the pump for a problem. A good final test is to pull the hose off the carbs and let it pump into a bowl or jar to prove it is passing gas, then put finger over it to prove it stops on pressure.

Goose

[Yammer Dan]

Sea-Foam!!

[etcswjoe]

This information is NOT correct. The fuel pump is only activated by the lack of back-pressure on the line from the carbs. If they are full, as they always should be for at least a few hours after the last time the key was turned off, the pump never activates when the key is turned on.

 

One cause of this problem is a stuck float valve where the gas just gets pumped out the vent line so pressure never builds, but that should be obvious if it is happening.

 

In your case, if the petcock is turned on and the tank has gas, then I'd suspect a dirty fuel filter has prevented the bowls from filling. Even so, if the bike will start, then there must be SOME gas getting through, right? So let the pump go through the 5 second cycle several times by turning the key on and not starting it multiple times. If the carbs ever do fill, the clicking will slow down as the pressure builds. If that never happens after about 5 cycles, I'd look closer at the pump for a problem. A good final test is to pull the hose off the carbs and let it pump into a bowl or jar to prove it is passing gas, then put finger over it to prove it stops on pressure.

Goose

 

 

 

Guess I have an issue too because both of mine click every time I turn them on and have ever since I owned them, guess I got some bad dope sorry for spreading misinformation I could have sworn I had read that somewhere before but I am old and forgetful so who knows.

[Bob Myers]

Mine does too

[MikeWa]

Getting in ready for rolling thunder. Heading out in the morning. I synced the carbs this afternoon, & noticed after I did, when I turn the key back on the fuel pump is "clicking" faster than normal. The bike was good & warmed up, but what concerns me is if I turn the key off then right back on the pump is clicking...doesn't make scence to me as the bowl should be full. Should I be concerned or is this one of the signs of a fuel pump going out? Any help appreciated.

Thanks, Melvin

 

 

Pre trip jitters.

 

Mike