SURGING SURVEY				Compiled & Edited by Norm#874
OWNER	MTH/YEAR	MODEL	MILES	SYMPTOM	FIX
#982	95	Classic		None	None
#562	96	Classic		RPM drop-out @ 3.5-4.2k RPM	None
#436	97	Classic		Surging @ low RPM	Stay above 3.5k RPM
#582	97	Classic	36.1k	None	None
#1025	97	Classic	25k	None	None
#714	97	Classic		None	None
#1026	97	ST	11k	Some surging 1st gear low rpm	None
	98	Classic		Surging below 3k RPM
#714	98	Classic		None	None
#391	99	Classic		None	None
#982	99	Classic		None	None
#714	99	Classic		None	None
#550	99	Classic		None-rough idle @ 10k miles & 3.5k RPM in any gear	Replaced bad resistor in plug cap with 5k Ohm from NGK plug cap
#562	00	GS	3k	Drop-out @ 3-4K RPM, No Stalls	Upgraded to 9.3 S/W and problem remained; Got New Injector & 10.x S/W and better, less but still perceptible drop-outs. Gas Mileage dropped too.
#626	00	GS	13.8k	OK for 6k miles then died; BMS connector filled with water	Replaced BMS and upgraded to 9.3 S/W and began to surge/stall; went to 10.x S/W and stalling stopped; must stay above 4.2k RPM; dies below 2k RPM; ABS connector corroded and replaced
#562	00	GS		Surging	Old injector, new S/W
#1021	00	Classic	7.3k	None	None
PC	00	GSA	7k	None	None
#1071	05/00	GS		Lots of Surging	V.5000 Euro S/W
#998	07/00	GS		Surging @ 3-4K RPM	10.1 S/W
#738	10/00	GS	12k	Surging/Stalling for first 5k miles	New injector & S/W
#1001	01	GSA		Pulsing @ 3-4K RPM	10.x S/W
Unknown	01	GS		Surging at 25-35 MPH
#819	01	GS		Some Surging at low RPM	10.1 S/W, idle @ 1.5-2k
#1002	01	GS		Surging	TechlusionFN, 10.x S/W, 10% lower Fuel Econ.
Sean	01	Dakar	9.5k	Slight surge; returned at 8.5k; hesitates @ 3.5-4.5K RPM	fixed by dealer at 4.6k; considering FN
#906	01	Dakar		Surging @ 5.5k miles and 3.5-4.5k RPM; popped and died	At dealer
GrtWht	01	Dakar		Surging @ 3-4k RPM	Updated S/W
GrtWht	01	GS		None	Updated S/W
JV in BC, Canada	01	GS		Surging from the start	New 01 bike, Snorkel mod., Staintune muffler, 9.0 S/W
Stumby	01	GS		Stalling	Tightened loose Neg. Battery Terminal
#823	01	GSA	13k	Stumble @ 4.3k RPM	10.1 S/W
philter	01	GS		Surging	New injector & S/W at Lyle Lovette Motorsports
#714	04/01	GS		None	None
#714	04/01	GS	12k	None	None
Stuportech	05/01	GS		Surging @ 3-4k RPM	Latest S/W, learned values @ 0
#920	05/01	Dakar		None	9.x S/W
#926	05/01	GSA		No Surging; slight pulsing @3.2-4.2k RPM	9.3 S/W
Pollux	07/01	GS		Surging Rare; stalling annoying	None
#860	07/01	GS		Surging	Dealer upgraded injector & S/W; I unhooked O2 sensor
#1130	10/01	Dakar	12.6k	None	Latest S/W @ low octane, stock exhaust/intake, fuel nanny
#1074	02	GS		None	None
#1092	02	GSA	4k	None	None
KiwiDakar	02	Dakar	2.4k	None	None
Reggie	02	GST	1.2k	Hunting on light throttle @ 72 MPH, stutter, no stall	None
pqbon	02	GS	3k	Stalls when cold, surges when not ridden hard	None
#1022	Unknown			Stalling	Fuel Nanny
If you'd like to add to/modify this list, please send an email to faq@f650.com, with the above information. Please add to it. !