poor cold starting

[Mike Cook]

I have recently purchased a KLR600 that is difficult to start cold. The behavior is as follows: To cold start the choke MUST be fully on and no throttle. *Using the electric starter the engine has to turn over at least 8 times before a single fire, and some times it will not fire at all. *If it does start, it will slowly go up to 3000RPM. *From here NOTHING can be done untill the temp gauge is in the middle near HOT. If any throttle is applied before this, the engine stalls, just like turning off the ignition. *After the temp is in the middle to high, the choke is slowly backed down to 1500RPM. *The throttle is quickly applied and removed untill the engine speeds up when the throttle is applied instead of stalling. *Then the choke is completly removed and the engine runs fine. I have cleaned the AIR filter,spark plug, added a battery (it was rewired to not use one), replaced the Gas tank filter, cleaned the carb (main & idle jets). Amazingly the carb looks prettly clean. Checked the little boot over the choke cable. The only area I didn't open up was the enricher dirphram (thinking that if I remove it, it will need to be replaced). Dose anyone have any ideas? Im stumped.