Thread: Rotax ECU
09-06-2008, 09:47 AM #1
I just purchased a Rotax ECU for my RXP-X. I was told by the vendor who sold it to me that I wouldn't need to change injectors. I am wanting to put it on and ride today, but don't want to lean the ski out. Is it possible to run this ecu with my stock fuel setup?
09-06-2008, 09:56 AM #2
09-06-2008, 10:09 AM #3
09-06-2008, 10:14 AM #4
Agghhh!!!! I paid Overnight/Saturday delivery for a part I can't use. I looked and I only have 55# and 84# injectors. If I dig up some 60#'s will I be safe to ride without anything else?
09-06-2008, 10:16 AM #5
09-06-2008, 10:34 AM #6
I have the valvesprings/retainers. I didn't pull the heads and do the valves, yet. If I get 60#'s will I be safe to run the ski? I can easily keep the rpm's below 8400
09-06-2008, 10:35 AM #7
Yes, you can run the ski with 60 lb injectors.
09-06-2008, 01:50 PM #8
- Join Date
- Sep 2007
- Lexington, Ky
Question about high RPM ECU's
Am I right or wrong on this. I always thought that the danger in running the high RPM ECU was not under load, but when it unhooks, and revs to the ceiling?? I would see 8450 on my oem X-ski ecu when it unhooked, and I see over 9k on my 8600 Rotax ecu when it unhooks. Obviously I try and avoid this, but sometime it happens, but this is when u have to worry abotu valve float is it not? Or is it OK to run a high rpm ECU if you only maxing out at 83-8400 RPM's with stock valvetrain???
09-06-2008, 08:42 PM #9
Thanks to everyone for the help. I found some 60# injectors and plan on testing the ski tomorrow. I am hoping the new ecu will also allow my speedo to read higher than 70mph.
09-06-2008, 09:18 PM #10
your speedo wont read nothing.... its the down fall... the speedo is gonna be reading false speed... usually 0 but sometimes youll see 3, 34, different speeds.. all wrong. who ever sold you this ecu shouldve told you all this stuff....
its a great ecu, i have it on my ski...
but, it has some negatives...
be sure to do the valve work asap!!!
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