How to check for fuel?

wayne · 09-19-2010, 09:10 AM

Hi there! Just need some advice - having trouble starting my Mazda RX7 FD3S. The motor swings freely but does not want to fire. Have changed plugs and checked spark, which is all ok, but would like to check if it is getting fuel. Have no idea on how to do this. Can anyone help???? Also, what else should I check?

Ratjar · 09-20-2010, 11:45 PM

can you hear the fuel pump kick on? check the ignition fuse and the fuel pump fuse. try jumping it as well, if it has low compression it needs a strong spark to start.

cewrx7r1 · 09-21-2010, 04:34 PM

Maybe it is due to you having a gay engine that SWINGS freely instead of cranking.

If you go to page F-97 of the field service manual and start reading, you may learn some things. At lease do the F/P to ground test and you should be able to hear fuel flow.

If you do not know anything about manual, go to:
http://foxed.ca/foxed/index.php?page=rx7manual

09-19-2010, 09:10 AM	#1
wayne The Newbie Join Date: Sep 2010 iTrader: (0) Posts: 1 Rep Power: 0	How to check for fuel? Hi there! Just need some advice - having trouble starting my Mazda RX7 FD3S. The motor swings freely but does not want to fire. Have changed plugs and checked spark, which is all ok, but would like to check if it is getting fuel. Have no idea on how to do this. Can anyone help???? Also, what else should I check?

09-20-2010, 11:45 PM	#2
Ratjar The Newbie Join Date: Nov 2009 Location: Orion iTrader: (0) Posts: 20 Rep Power: 0	can you hear the fuel pump kick on? check the ignition fuse and the fuel pump fuse. try jumping it as well, if it has low compression it needs a strong spark to start.

09-21-2010, 04:34 PM	#3
cewrx7r1 The Judge Join Date: Feb 2008 iTrader: (0) Posts: 196 Rep Power: 17	Maybe it is due to you having a gay engine that SWINGS freely instead of cranking. If you go to page F-97 of the field service manual and start reading, you may learn some things. At lease do the F/P to ground test and you should be able to hear fuel flow. If you do not know anything about manual, go to: http://foxed.ca/foxed/index.php?page=rx7manual