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800 EFI limp mode/drops one cylinder
Edit: changed the topic name as this seems to be limp mode issue.
I have ZR 800 EFI based mountain sled. Does anybody have experience about advancing the timing in EFI engine? I've advanced the timing 4.5 degrees and now I have issues getting it to rev above 6000 rpm. It drops out one cylinder :/
I had this same issues last year when it was turboed. Turbo turned to be too small so I took it out. Sled has worked quite ok this winter except week ago it started to die at top. Yesterday the thing got worse and it didn't want to rev over 6000 rpm anymore. EGTs drop in one cylinder totally, kind of loosing spark/plug totally but it will wake up when letting off throttle. Really weird issue.
I'm using modified PCV and I'll test today with stock ignition without PCV to see if those are the issue. I've leaned out whole fuel range about 3-6 numbers and idle is at -15.
The engine is -03 model. I've understood APV length should be about 30.5mm. The cables in otherhand are almost too short (adjustment thingy just barey stays on thread) for that measurement. -04 says 36.5mm for adjustment and that seems to be better for the cables. Funny thing is I've tried both setups and sled works the same. No error code either case. Weird?
Edit: changed the topic name as this seems to be limp mode issue.
I have ZR 800 EFI based mountain sled. Does anybody have experience about advancing the timing in EFI engine? I've advanced the timing 4.5 degrees and now I have issues getting it to rev above 6000 rpm. It drops out one cylinder :/
I had this same issues last year when it was turboed. Turbo turned to be too small so I took it out. Sled has worked quite ok this winter except week ago it started to die at top. Yesterday the thing got worse and it didn't want to rev over 6000 rpm anymore. EGTs drop in one cylinder totally, kind of loosing spark/plug totally but it will wake up when letting off throttle. Really weird issue.
I'm using modified PCV and I'll test today with stock ignition without PCV to see if those are the issue. I've leaned out whole fuel range about 3-6 numbers and idle is at -15.
The engine is -03 model. I've understood APV length should be about 30.5mm. The cables in otherhand are almost too short (adjustment thingy just barey stays on thread) for that measurement. -04 says 36.5mm for adjustment and that seems to be better for the cables. Funny thing is I've tried both setups and sled works the same. No error code either case. Weird?
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