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Fuel pump testing Sat Feb 14, 2015 7:04 pm
FissionMailed
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I'm trying to track down my no-run problem (bike runs and revs up while starter button is pressed, dies otherwise), and I've gotten myself a cheap fuel pressure gauge set. Here's what I've got:
Hooking it up between FPR and return on tank gives me 0psi(????), but hooking directly up to the pump gives me about 90psi, which falls to about 70. The pump seems to hold pressure after you let off the starter just fine.
It seems to me that the pump's relief valve may be an issue (as probably also is the fuel filter, which is marked Made In W. Germany). That said...Is this really going to cause a no run situation?
Hooking it up between FPR and return on tank gives me 0psi(????), but hooking directly up to the pump gives me about 90psi, which falls to about 70. The pump seems to hold pressure after you let off the starter just fine.
It seems to me that the pump's relief valve may be an issue (as probably also is the fuel filter, which is marked Made In W. Germany). That said...Is this really going to cause a no run situation?