musti
Member
Hello fellow riders.
Hope everyone is in the best of their health's.
Just today I was tinkering with my 2014 Duke 200 and 2015 RC 390, swapping the fuel injector on my 200. In this thread, I will be sharing information and my experience while conducting this. Please feel free to share any thoughts and opinions.
First image (Factory 200) is the injector from my Duke 200
Second image (Factory 390) is the injector from my RC 390
Third image (KTM Gray Area) is the over size injector from KTM Gray Area
Fourth image ( 20210430_112106) are all the 3 injectors side by side
Fifth image (Bosch EV 14) is the injector details from Bosch motorsports
I currently have the KTM Gray Area over sized injector installed in my RC 390 and it is a rocket!! - Very Very Happy With The Installation.
I was trying to install the KTM Gray Area over sized injector in my Duke 200, since it also has an open box air filter, expecting it to perform better - result - Failed - Bike does not idle - It stutters when revved. The increment in rpm is not a smooth transition. There is a lot of hesitation. Idle is not possible at all, the bike shuts down - My assumption - Too much fuel.
I then installed the Factory 390 injector and guess what, the bike idled good and ran too.
However, this is what I am not understanding:
Thank you.
Hope everyone is in the best of their health's.
Just today I was tinkering with my 2014 Duke 200 and 2015 RC 390, swapping the fuel injector on my 200. In this thread, I will be sharing information and my experience while conducting this. Please feel free to share any thoughts and opinions.
First image (Factory 200) is the injector from my Duke 200
Second image (Factory 390) is the injector from my RC 390
Third image (KTM Gray Area) is the over size injector from KTM Gray Area
Fourth image ( 20210430_112106) are all the 3 injectors side by side
Fifth image (Bosch EV 14) is the injector details from Bosch motorsports
I currently have the KTM Gray Area over sized injector installed in my RC 390 and it is a rocket!! - Very Very Happy With The Installation.
I was trying to install the KTM Gray Area over sized injector in my Duke 200, since it also has an open box air filter, expecting it to perform better - result - Failed - Bike does not idle - It stutters when revved. The increment in rpm is not a smooth transition. There is a lot of hesitation. Idle is not possible at all, the bike shuts down - My assumption - Too much fuel.
I then installed the Factory 390 injector and guess what, the bike idled good and ran too.
However, this is what I am not understanding:
- If the 390 injector worked in my 200, why didn't the KTM Gray Area over size work?
- Apart from the Bosch serial number being different on the Factor 200 and Factory 390 injectors being different, As per the Bosch spec sheet, they all are the same, or are they not? Can anyone help me understand it better...
- If the Factory 200 and the Factory 390 injectors are different and if the Factory 390 is supplying more fuel, do I need to install the KTM Gray Area oversized injector?
Thank you.