D902 e4 idle issue

I have recently rebuilt, from the crank up a D902E4 engine installed in a newer RTV900. The engine had high hours and had lost #2 cylinder. Installed the rebuild engine back in the chassis and bled out the fuel system etc. Engine starts and runs like a champ with the throttle engaged 1/4 all the way through WOT. The issue im having is the machine does not want to idle at all. I have already changed the fuel priming pump and filter. This one has me stumped and i was wondering if anyone else out there had ran into a similar issue.
** machine will not start unless throttle is pressed when cranking**
 
Whats it idling at maybe it needs adjusted up 750- 1000.
I think I may have found the issue after all the diag, it seems that the customer had installed the fuel filter (cartridge type) without the center o ring causing it to lose fuel pressure to the pump. I will know for sure when my new filter and o rings come in today on the parts delivery. I will keep you posted, and thank you for the reply.
 
Top