2006 roketa 250 spitting ang sputtering PLEASE HELP

Posts: 16 · Newbie Joined: 04 Apr 2008 Posts: 16 Pictures: 0

i just got it the person who had it put a spectra air intake on it
and had a RADIATOR HOSE RUNNING ALL THE WAY UP TO THE TOP OF THE SET IT WOULD BARLEY RUN 25MPH AND YOU HAD TO EASE INTO THE GAS TO ACCELERATE SO I RAN THE INTANKE STRAIGHT INTO THE CARB TOOK THE CARB APART AND COMPLETELY CLEANED IN IT RUNS BETTER BUT IT STILLS MISSES I PUT ANEW SPARK PLUG IN IT AND A NEW FUEL VALVE ADJUSTED THE VALVES THE BEST I CAN DESCRIBE IT IS IT ACTS LIKE ITS NOT GETTING ENOUGH FUEL I PUT A BIGGER JET
IN IT STILL NO BETTER SOME TIMES WHEN YOUR RIDE YOU CAN GET IT UP RUNNING TOP SPEED THEN MAYBE 5 SECONDS AND IT WILL GO TO MISSING OR SPUTTERING LIKE ITS NOT GETTING ENOGH GAS I CHECKED THE COIL CONNEEN YOU FIRST CTIONS THERE GOOD I ALSO SCREWED THE AIR MIXTURE SCREW ALL THE WAY IN THEN TURN IT OUT 2 AND HALF TURNS THEN 2 AND THREE QUARTERS THEN THREE TURNS STILL NO GOOD IT IDLES PERFECT AND STARTS EASY IT ALSO JERKS ALITTLE WHEN TAKE OFF TIGHTENED CHAIN NO GOOD STILL JERKS

Posts: 4335

is there a hose running from the carb to the air filter? if so take that hose off and see if the air filter will fit straight on the carb ( if its a clamp on stlye ).

what size jet is in it now? the jerking could be the belt or the clutch