Hi I Need Help By Tommorow.

Jack2004 · Nova Slayer Joined: 02 Jan 2004 Karma :

I have a Suzuki ae50 style with a problem. The petrol doesn't flow through properly. It goes into the fuel pump but doesn't come out the other end. It has a vent tube i wondered if it could be that? I know it's not the fuel pump as it is brand new. If i blow into the fuel tank though it will put some petrol into the engine and run for about 3 minutes. Any ideas anybody??????

P_J · Nearly there... Joined: 24 Nov 2002 Karma :

Jack2004 · Nova Slayer Joined: 02 Jan 2004 Karma :

When i get the bike running after blowing into the petrol tank to put some petrol into the engine it will run but then cut out because there is no petrol going through the pump, i've checked because while it was running i disconected the fuel out pipe and there was no fuel coming out at all.

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

Well your petrol pump clearly isn't doing its job. Check all the electrical connections, if they are ok i'd assume its broken. See if you can find any way of testing it with a multimeter online.

Jack2004 · Nova Slayer Joined: 02 Jan 2004 Karma :

Do you think it could be any problem with the vent?

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Does the bike run with the fuel cap off (don't try riding it like this)? If so the chances are that the vent to the tank is blocked.

Is it an electric pump?

One possibility is that it is a vacuum pump. As such it will need a pipe from it to the crankcases to provide a pulsing vacuum. If the pipe is blocked then nothing gets through to the pump. These pumps are not common, but sometimes they are fitted (gits at Yamaha fitted one for the early Diversion, fortunatly they discovered the guy who did it, strung him up and replaced it with an electric pump for the later bikes).

All the best

Keith
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G · The Voice of Reason Joined: 02 Feb 2002 Karma :

You could try getting an airline (from air compressor) and blowing out all the appropriate holes.

Not sure about what the 'vent' does.
If you've got some spare hose you could try running it without the pump, presuming it's an electric one, I can't see it needing it /that/ much for a 50.