Hard starting help please
Good morning all, last Friday I purchased a 2011 KLR 650, when I got the bike home after several hours of being shut off and fairly cold (upper 50s) and late at night, when I unloaded the bike from the trailer I had a very difficult time starting it, it would start and die,start and die,with choke on, it took me about 20 hits of the starter to finally get it going and even then I had to finesse the throttle, when I finally took it for a short 2 mile ride after warming up for about 4 minutes it seemed to lack power and had a lag in the mid range. Very disappointing, next morning I checked for the .22 cent mod feeling it was very lean, I found nothing had been done so performed this mod, I noticed when I pulled the welch plug from the low speed screw it was completely closed, in other words when I tried to close it and back it out 2 1/4 turns it was already closed (aha moment) so I drilled the slide to 7/64s added .042 under the needle and backed the screw out 2 1/4 turns and put back together for a test. Again the same thing no difference in starting and acceleration on the stand nearly fry the battery and starter getting it going. So pulled the carburetor and disassembled it very clean inside but still soaked it for 6 hours and cleaned all ports and passages. Decided to check valve adjustment and does need new shims for sure but my gut tells me this is not the issue. I have checked all hoses and they are all good, main jet is #145 which I think will be OK for my altitude (south Texas), Talked to the previous owner and said he had never done anything to the bike except change the oil and it has 17528 miles. I asked him about the "doohickey" he said the "what" so will be doing the valve shims and doohichey. What else can cause this lean issue. I want to fix everything all at once. Besides I am unable to play with my new toy and it is killing me. Sorry for the long post but figure better to give as much info as possible. Any help would be greatly appreciated.