PSBeachBum
New Member
2004 Sportster Le Di. I'd been t/s slow acceleration (at the time wear ring was new and carbon seal was newer). I though it was raves so I replaced them (engine is not bored over). I tested fuel pressure and it was low so I replaced fuel pump and filter with one from quantum. Fired up. Ran great. Did 20 miles and blew a fuel line. Replaced all the lines and it ran great for my test run but died on approach to the dock. I installed a gauge on fuel line and it reads the normal 27 psi on prime but winter make it to 107 running. I checked air compressor and it was 30 psi so I replaced sleeve, piston, rings, gasket, o-rings and inlet reed disk and am now getting less psi. I checked compressor head with my fingernail for any pieces missing causing inlet disk to leak.
Cylinder compression at spark plugs were and still are 90psi on both so I tested at air injector ports and got 130psi on both leading me towards leaking fuel/air rail components. I've replace just about all O-rings and I am still unable to get going.
Currently it primes 27psi and starts but will surge between 80psi and 100 psi and idle to it dying.
I'm at a loss on what to check next
Cylinder compression at spark plugs were and still are 90psi on both so I tested at air injector ports and got 130psi on both leading me towards leaking fuel/air rail components. I've replace just about all O-rings and I am still unable to get going.
Currently it primes 27psi and starts but will surge between 80psi and 100 psi and idle to it dying.
I'm at a loss on what to check next
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