Join Date: Mar 2004
Location: Greater Worcester Area, Massachusetts, USA
Could be the pump. We trouble-shot a stranger's ST4s at the Dragon a couple years back. Gent filled up, bike didn't start. No F.Pump noise...traced voltages all the way to under the tank connector. Finally slapped the tank while he turned the key on--pump came on, and he was a very happy camper!!
Try this home-cure-all: Shove a DUC between your legs.
Present DUC: 2003 ST4S Yellow! 2001 ST2 Blue
Past DUCs: 1998 ST2, 1981 500SL Pantah, 1985 MHR Mille, 1987 Paso Limited, 1995 916 mono
Other brands (past):
1978 BMW R100RS Motosport, 1978 R100S, 1981 Moto Guzzi V50 Monza, and a long list of Hondasakizukis