2009 gas gas EC jetting

[cofl1001]

Hello all
My first post here, I am struggling to dial in my 2009 ec200. When I bought it it, it had the stock NOZE needle and some funny jets like 152 main and 52 pilot...
I switched to the suzy needle (NECJ) with an 178 main+38 pilot since it smoked quite badly...After some woods testing I increased the pilot to 40 since 38 sometimes bogged when opening the throttle quickly, with 40 on uphills also seems it lacks the punch and changed to 42...Yes, many jets bought time lost and no nice ride unfortunately...Last week after changing to 42 the damn thing will not start anymore ! it starts for a few secs and then boughhhh and it dies...new plug, same...opened up the carb, reduced a bit the float level from stock 16mm to 17.2 and still could not start it...Gas is flowing, no blocks found in the carb(PWK38) spark is working....
Help !