[Norman Bergeron]

I have a 2006 Brute Force 650 4x4i that in the past had a fuel pump issue. What we did then was bypass the fuel pump and installed an electric fuel pump. What I'm doing now is trying to get it back the way it was. My question is will it even be worth the work? Or should I just leave it as is with the electric fuel pump on it? It seems to run fine with the electric fuel pump, but I always believed that it would be more efficient with it set up the way it was. I think we did it this way because we didn't want to spend the money for the original OEM Fuel Pump. But if going back to the original setup would be best, I'm willing to spend the money on the correct parts. Just looking for some feedback from anyone who may have had the same issue or whether or not it is even worth the money to replace the original Fuel Pump since the cheap electric one seems to be working fine. Your thoughts?

The pictures below are the Bravex Fuel Pump currently on the bike. The 2nd picture is the Petcock minus the fuel pump and fuel pump bracket. The hose goes from the Petcock to the fuel filter to the Bravex Fuel Pump to the Carburator. There wasn't anything connected to the open outlet tube on the Petcock so if there is supposed to be a hose going from that to something else, please let me know. This bike has been awesome and I'm currently doing a deep cleaning of it and a complete service so if things are missing, I need to get them replaced. Thanks in advance.

 

[NMKAWIERIDER]

Not worth the time or money to go back to the OE system. Plus when the carbs dry-down in a few days you will be cranking on it until the bowls refill putting extra wear on the starter where now you just turn the key on and wait a second before hitting the starter. Do know though that that open port on the second pic is for the vacuum pulse and that comes from one of the intake ports. Make damn-sure it's capped off because if not it.. will be sucking dirt and everything else in wasting that cylinder.
As I recall its on the front cylinder,left side.

 

[Norman Bergeron]

I'm still learning how to reply to messages.

 

[Norman Bergeron]

Not worth the time or money to go back to the OE system. Plus when the carbs dry-down in a few days you will be cranking on it until the bowls refill putting extra wear on the starter where now you just turn the key on and wait a second before hitting the starter. Do know though that that open port on the second pic is for the vacuum pulse and that comes from one of the intake ports. Make damn-sure it's capped off because if not it.. will be sucking dirt and everything else in wasting that cylinder.
As I recall its on the front cylinder,left side.

I'll definitely check the intake port tomorrow. If it isn't caped, would it hurt to run a hose from it to the open port on the petcock? I'm assuming it is caped because we have been running it like this for almost 2 years now with no issues in the engine compartment.

I'll go ahead and leave the electric pump on there then. Like I said, it has been working fine with it on there. I just didn't know if it was going to cause any long term issues. Then again, it has been this way for almost 2 years now with no problems either.

I appreciate the info.

 

[NMKAWIERIDER]

Just make sure it's capped at the head. I wouldn't hook it back up.

 

[Norman Bergeron]

Just make sure it's capped at the head. I wouldn't hook it back up.

Good news, it was definitely capped. I went ahead and cleaned it all up, did a service on it, and threw it back together.

Here is a separate issue. When the petcock is in PRIme, it runs perfect. No issues what so ever. When I turn the petcock to ON, it bogs down. As in, when I go to give it gas, it stalls out. As if it is being starved of fuel. Could this be a bad petcock? I didn't think those things really went bad, but in this case, it definitely has me thinking it is a bad petcock.

 

[NMKAWIERIDER]

On PRI it allows easier flow through the check valves for priming where on ON, without the vacuum, the diaphram and check valves make it hard for the electric pump to pull fuel through them. Just leave it on PRI.