Hello Guys,

I have a 2013 02-8FGF25 LPG machine which wont start.

Fitted with Aisan Model SC Regualtor

Machine cranks with good effort, has good strong spark on all 4 plugs. Removed and cleaned the gas filter on side of the regulator, had slight dusting of debris but not a lot as this machine filter is cleaned each service. Have strong flow of gas too the small lower pipe on intake manifold. the larger pipe off regulator too the AIR FLOW CONTROL has a strong flow, when cranking enough too push your finger off the pipe end.

If this larger pipe is removed and crank machine it starts and stops straight away. I have removed all the throttle body and air flow control valve and cleaned making sure they operate.

Any information would be great.

Thanks