Hello all. I have a 900 propane that is (was) my main puller until it developed fuel system problems. It still has the origial Ensign system on it, and I would like to keep it that way. The tractor will pop when first trying to start, then die and do nothing. It seemed to do that before and a shot of starting fluid would usually cure the problem. I have been googling ensign carburetors to try to find service information, but without success. Is there an Ensign GURU anywhere that could guide me, or be a source for parts. Some club members say to put an Impco on it and don't look back. I guess that is an option if it can be made to look like it belongs there. thanks Loy