Hi there, so recently i've started having a problem with my 2000 gsxr-750 of it cranking but not starting, I've checked everything, like jump starting from a car, check for spark, sparks good just replaced them 2 days ago, replaced air filter, did a compression test, its getting compression, fuel pump primes and works just fine, fuel gets to rail, but when i hit the starter button it just cranks and cranks and cranks but never fires /:
So, I pulled the fuel rail put fuel into it manually and hit the starter and noticed there was nothing coming out of ALL FOUR of my injectors. So I did an in depth diagnosis and bought a test light and a NOID light to check the fuel injectors plugs, and bought an entirely separate fuel injector tester/cleaner, using the noid light and the test light all 4 of the plugs the fuel injectors go into where getting pulse and power/ground from the ECU and even pulsing when cranking the engine over, and then i hooked the actual injectors themselves to a injector tester and sure enough, they fired on their own when i connected the positive lead of the injector tester to the positive terminal of my battery, they fired just fine, ran seafoam through them and they were firing perfectly.
but when i attach them to my bike and try to start, no fuel comes out of the injectors at all. I am absolutely stumped at this and need any help i can get before i decide to start throwing big money at it, please any and all help is welcome and i will gladly answer and ALL questions you guys need of the bike, as soon as i can. Again, thank you all for your help.
PS- Whenever i spray fuel into the throttle bodies it cranks up but dies as soon as all the fuel is used up, so we can definitely nail it down to a fuel injection issue. And when put in dealer mode code C22 is all that comes up, I don’t see how that would prevent the bike from starting.
So, I pulled the fuel rail put fuel into it manually and hit the starter and noticed there was nothing coming out of ALL FOUR of my injectors. So I did an in depth diagnosis and bought a test light and a NOID light to check the fuel injectors plugs, and bought an entirely separate fuel injector tester/cleaner, using the noid light and the test light all 4 of the plugs the fuel injectors go into where getting pulse and power/ground from the ECU and even pulsing when cranking the engine over, and then i hooked the actual injectors themselves to a injector tester and sure enough, they fired on their own when i connected the positive lead of the injector tester to the positive terminal of my battery, they fired just fine, ran seafoam through them and they were firing perfectly.
but when i attach them to my bike and try to start, no fuel comes out of the injectors at all. I am absolutely stumped at this and need any help i can get before i decide to start throwing big money at it, please any and all help is welcome and i will gladly answer and ALL questions you guys need of the bike, as soon as i can. Again, thank you all for your help.
PS- Whenever i spray fuel into the throttle bodies it cranks up but dies as soon as all the fuel is used up, so we can definitely nail it down to a fuel injection issue. And when put in dealer mode code C22 is all that comes up, I don’t see how that would prevent the bike from starting.
