95 blazer no start

I have a 95 Chevy Blazer that won't start. If I spray a couple squirts of starter fluid into the throttle, it'll stumble(choke) a couple of times and then start right up. Once it's runnin, it idles fine like nothing's wrong at all. After I shut the engine off and try to start it again, it'll choke like it wants to start but doesn't and then just cranks. The next time I try to start it, it just cranks. But it does crank normally though. I can hear the fuel pump priming itself with the key on, tested the injector plug with a noid light and it's good, I have spark out of the coil and wires, though the spark is orange. Oh, I opened the valve on top of the intake and there's no presence of any fuel inside the intake manifold. This is a weird problem for me. Gonna try the fuel filter first thing tomorrow. Any tips would be appreciated. Thanks.
Sean

orange spark?

Ever done a tuneup?

fuel filter and tun up(including the cap n' rotor)

Vic

Sounds like the CPI injector and nut kit is leaking.

If you havent done so I would try a tune up first.
Your spark should be blueish white. Nice and bright.