Posts
3
Joined
1/24/2017
Location
MX
Hey Everyone,
I have an issue, I sent my ECU to Texas to get it mapped, the bike was brand new but ever since it kind of bogs sometimes, I thought it was the ECU, I was thinking maybe they mapped it there and the bike they used ran good because they're almost at sea level, here in my hometown we are like at 8,000 feet above sea level, so I thought that maybe getting a new ECU will fix the problem, I got a new ECU but I just rode it with the new ECU and still doing the same, do you know what could be the problem??
Bike : 2015 RMZ450, stock engine, just a FMFslip on, stock header.
Valves are on spec, cams are on the right timing, fuel pump was tested and its good, here we have 92 and 87 ethanol free pump gas, I've tried both and also VP T4 and still doing the same, injector in clean, TPS values at closed throttle .64V and on wide open throttle 3.84V, I put a new spark plug, rode it a few laps, took it out and it's gray/white, so it's running really lean not sure why...this is so frustrating lol, what else could be ? I'm posting a few videos so you can see what she's doing
videos:
https://youtu.be/T0Rl19rkyhI
https://youtu.be/mumgMvbpFls
https://youtu.be/_TpdmRBKxsg
I have an issue, I sent my ECU to Texas to get it mapped, the bike was brand new but ever since it kind of bogs sometimes, I thought it was the ECU, I was thinking maybe they mapped it there and the bike they used ran good because they're almost at sea level, here in my hometown we are like at 8,000 feet above sea level, so I thought that maybe getting a new ECU will fix the problem, I got a new ECU but I just rode it with the new ECU and still doing the same, do you know what could be the problem??
Bike : 2015 RMZ450, stock engine, just a FMFslip on, stock header.
Valves are on spec, cams are on the right timing, fuel pump was tested and its good, here we have 92 and 87 ethanol free pump gas, I've tried both and also VP T4 and still doing the same, injector in clean, TPS values at closed throttle .64V and on wide open throttle 3.84V, I put a new spark plug, rode it a few laps, took it out and it's gray/white, so it's running really lean not sure why...this is so frustrating lol, what else could be ? I'm posting a few videos so you can see what she's doing
videos:
https://youtu.be/T0Rl19rkyhI
https://youtu.be/mumgMvbpFls
https://youtu.be/_TpdmRBKxsg
Paw Paw
-Runs like crap on 1/2 to 3/4 throttle, runs perfect on low and full throttle.
-it bogs sometimes when I'm on the was right before landing
I re-checked everything to make sure there's no air leaks.
Spark plug in getting gray/white so somehow it's running lean, at first I thought it was the ECU I sent to get it re-mapped, but I got a brand new OEM ECU and it's doing the same thing...
The Shop
i brought a 2015 RMZ450 and the bike mid range miss fires a little, worries me leading up to jumps etc
did you find a fix / solution
thanks
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