stalled, won't start
I have an optimax 115 dfi 3 cyl 2004 with 177hrs. It has been faultless in the 3 years I have owned it. A few weeks ago I took it out and it had a good run of about 15 miles , we done about 8 - 10 short drifts over a wreck and I started it and went to move it and it stalled. It started up several times but stalled after a few secs. I put brand new plugs in and checked the fuel filter. topped up the oil but no joy. Got towed in. I have since renewed the battery with the correct spec. The fuel pump is running. The spark on all three plugs doesn't look that strong but thought that they wouldn't all breakdown together. when the plugs are out they seem dry. I haven't checked the pump or air pressures yet but pushed in the Schrader on the air and had vapour in it. I thought about the press reg valve diaphragm maybe torn but with no previous symptoms I am not sure plus would it stop it even starting? I will check the pressures tomorrow. Is it a problem taking the prv off for a look? also any thoughts about the spark.