Hi, can any one help me ?. WRF 450 2004 model, left in garage over winter, when started up exhaust glows RED after a minuite or so, drained ALL super unleaded fuel from carb, at base, & tank, changed spark plug, NEW fuel in, throttle speed slows when choke released so choke not stuck, water & oil circulating (chkd rad & oil pressure nut at top of cam) any suggestions welcome please ! Robbie