09-11-2023, 09:36 AM
(09-11-2023, 04:04 AM)kencal001_imp Wrote:(09-10-2023, 11:17 PM)1973cb750_imp Wrote: i shared the page to you yesterday on fb welcome to the forum
i kinda feel it maybe a bad fuel pump by the symptoms a guess not knowing the codes
thank you! still trying to figure this out
(09-10-2023, 09:37 AM)Nachodaddy_imp Wrote: KenCal, start with the simple things first.
Find the rubber hoses that connect the pistons with the air box and make sure all the screws on the clamps are tight. Make sure all your spark plug wires are snug.
Does the bike start okay, but then the idle drops to 500 or so and then stall when you attempt to roll out? If so, find the Throttle Position Sensor (TPS) on the left side of the engine ( near your left leg as you sit on it) and carefully disconnect it. This will put the bike in the "Limp Home" mode.
If it runs fine after you do that, you have the unstable idle problem, which I cured by replacing my ECU. Good luck.
tried this, symptoms still the same, no change at all
thank you! still trying to figure this out
(09-10-2023, 09:37 AM)Nachodaddy_imp Wrote: KenCal, start with the simple things first.
Find the rubber hoses that connect the pistons with the air box and make sure all the screws on the clamps are tight. Make sure all your spark plug wires are snug.
Does the bike start okay, but then the idle drops to 500 or so and then stall when you attempt to roll out? If so, find the Throttle Position Sensor (TPS) on the left side of the engine ( near your left leg as you sit on it) and carefully disconnect it. This will put the bike in the "Limp Home" mode.
If it runs fine after you do that, you have the unstable idle problem, which I cured by replacing my ECU. Good luck.
tried this, symptoms still the same, no change at all That might actually be good news, since it is likely NOT the problem with the ECU which causes the unstable idle problem. The bad news is that it will take some dedicated trouble-shooting to find what it is.
I am hoping that it won't be long before some of the more experienced and knowledgeable members chime in with suggestions about how to look for codes or what other things you might do to pin down the cause of the problems you are having.