I have a Hyster h100xm Serial #L005V09079D LPG lift it has the 4.3l gm motor.
The lift started having a backfire issue after sitting overnight, then had one good backfire to it died and had a no start. I've checked all the fuses and all have power on both sides. I've changed the cap n rotor plugs and wires the module and the coil pack. Fully charged the battery and the starter is good and spinning fast but still no fire. Previous to the backfiring the lift had no issues and ran great. Its got the spectrum propane system in it. Lift has a full new tank on it so it has fuel. Just trying to find where to go next from here