Posts
566
Joined
12/17/2009
Location
WV
US
Edited Date/Time
6/4/2021 7:43pm
I just purchased a '17 YZ250F. I have been looking around for pipe, fuel and mapping recommendations to mostly no avail. For some reason the '17 owners are either not mapping or keeping their info close to the chest. I have found some maps for the '16 model, but due to the differences in engine power characteristics, I figure those maps are not worth considering at this time. Although I may try some in the future.
What I will do, with the collective knowledge of Vital, in my second post, collect all of the data that you post & put it there.That way it will be easily accessible to peeps looking for either hop up suggestions or maps or even what fuel to use.
If you would when you respond, please post:
A.) Rider classification
B.) Fuel
C.) Pipe
D.) Engine Mods
E.) Other mods of note (gearing, powerflow, filter, etc.).
F.) Map
G. Comments
What I will do, with the collective knowledge of Vital, in my second post, collect all of the data that you post & put it there.That way it will be easily accessible to peeps looking for either hop up suggestions or maps or even what fuel to use.
If you would when you respond, please post:
A.) Rider classification
B.) Fuel
C.) Pipe
D.) Engine Mods
E.) Other mods of note (gearing, powerflow, filter, etc.).
F.) Map
G. Comments
2017 YZ250F Suggested Baseline Map from Yamaha's website
A.) Rider classification
B.) PREMIUM PUMP GAS
C.) STOCK PIPE
D.) Engine Mods STOCK
E.) Other mods of note (gearing, powerflow, filter, etc.).
F.) Map
Hard Hitting /Loamy Conditions
FUEL
-2 -1 0
-1 -2 -2
-1 -1 -1
IGNITION
+1 -1 -2
+2 +2 +2
+2 +2 +2
Quick Revving. Stronger pulling, mid/top RPM.
Smooth Linear/ Slippery Conditions
FUEL
+1 +2 0
+2 +3 +1
+1 +3 +2
IGNITION
+2 +1 -1
+2 +2 +2
+1 +2 0
Smooth power delivery. Controllable low RPM power with strong pulling feel.
G. Comments
I was running Cycra shrouds, Power flow air filter kit, 50 tooth rear sprocket, FMF 4.1 Exhaust and U4.4 fuel with no engine mods.
The stock map seemed to have the most power every where and with the fuel it made a good bit of difference throughout the power range.
Looking to find another setting.. especially with more air in and exhaust. Like to hear some tuners/test riders chime in or point us toward some solid 2017 YZ250F map testing results.
The Shop
I added +1 across the board on FI for this map and it ran well on my 17 with stock motor, full yoshi, and MR12.
I think I need more fuel across the board with the extra air I'm flowing. Cycra powerflow kit, screen elim , vented ft plate and FMF Ti4 slip.
B.) 93 0r 99
C.) FMF Megabomb and 4.1 aluminum silencer
D.) Stock
E.) One tooth down on rear
I have created this data base in order to graphically analyze and create my own maps, everything that I have found on the internet is included. All pictures are generated from my own personal code shown below, enjoy!
I have exhausted all online resources for the GYTR PowerTuner (2014-2018) and I have compiled the holy grail of databases including graphical depiction and analysis. I have even created a few maps of my own, including my favorite the "Hit like a Mack truck" tune. Code is shown.
Are tuners specific to each year model bike? I still have a 2017 YZ250F but I didnt really want to buy a tuner if it only works for a specific bike year. I may upgrade my bike sometime.
Nope, GYTR Tuner is a general-use tool for equipped/compatible YZ-Fs.
However, if you're seeking multi-brand compatibility with tuners/software, you'll need to switch to an aftermarket ECU like Vortex.
Did this answer your question?
I did more research after this post. I see that the new bikes work off of WIFI and App. That is a smart upgrade. Thanks for the reply.
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