I have a 07 L3940. I changed the fuel filter and forgot to open the fuel on switch when I started the tractor. I know rookie mistake, I should’ve known better. I’ve searched several threads and I’ve open the pitcock and loosened the injector lines. I’ve even sprayed some starting fluid, but can’t get it to start. I’ve seen several posts about the decompression lever, but can’t find one (this model may not have one???). I’m a amateur mechanic so I need some help from somebody that has some knowledge about this engine.