95 CH 613 E7 350 Air in fuel system

[95CH613]

After 4 days of sitting my CH E7 350 won't start. Getting air in system somewhere. It will start if i have someone pump the primer while I'm turning it over or after I give it a shot of ether. Once started all is good no problems at all if I start it within 2 or 3 days. I've replaced the primer pump, the filters are tight and I checked injector line and lines on the pump and all seem to be like they should. Any ideas my problem? Thanks!

[alex g]

There's a check valve in your feed fuel line at pump. It's probably stuck open

[theakerstwo]

On a CH the check valve or pressure regulator may be just a fix orfice valve.My guess is the supply pump is letting the fuel drain back.Some ch was both ways.

[theakerstwo]

I should say some ch used the fixed orfice return valve and some used the valve with a spring and plunger.

[95CH613]

4 minutes ago, theakerstwo said:

I should say some ch used the fixed orfice return valve and some used the valve with a spring and plunger.

 

[95CH613]

Thanks for the additional information! I sure appreciate it!