Hey all: I have a 99WR400 with a Baja Dual Sport kit. It has been sitting a little while (a couple months) and when I went to start it, it starts fine with the choke on, bit turning off the choke it starts a popping and a sputtering and won't idle. With the choke on, runs ok with a high idle. The bike ran great before I parked it. Sounds like an air leak, but haven't found anything yet. Well, actually there was a little rubber plug on the carb that was from the octopus removal mod and it was rotten and cracked. I though I had found it! I replaced the rubber plugs, but that was not it. I replaced the gas, spark plug, pulled the carb and blew out all the jets, fresh air cleaner, and still no help... I pulled the hot start off the carb and plugged the hole, no effect. The compression release operates normally. Anyone have any ideas? Could it be something internal (stuck valve or something?). I haven't checked the ignition, could an ignition problem cause these symptoms? Any help would be greatly appreciated.