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yam314

Mapping to keep from Flame-out with Rekluse 3.0

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I currently have a '10 YZ450 with a Rekluse 3.0 and FMF slip-on. The bike keeps flaming ut after a sudden throttle chop. I have spoken with the Rekluse rep several times, verified the free-play,and increased the idle speed, but it still stalls, and is very hard to re-start. I think I may need to change the mapping. I am currently running :

  Fuel       Ignition

  0 0 0          0 0 0

+2 0 0        -1 0 0

+4 0 0        -5 0 0

 Any suggestions, as I am new to the mapping, but just bought a tuner.

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Unfortunately mapping will not cure it. It would require you to send your throttle body to a company like Injectioneering to fully eliminate the problem. Blame the butterfly valve...

What idle speed do you run?

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Not sure yet on the idle speed, but it is a bit higher than normal. I just got the tuner yesterday, and have not had a chance to check RPM with the motor running

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Injectioneering was in this early with the 2010 models.  Then complaint then was that "tip-in" throttle maneuvers resulted in a sudden, jerky response from the engine that made rolling the throttle on in a corner or a tight spot an iffy business.  They've gone on to generally improve roll-on behavior and overall responsiveness.  The consensus is that it's worth the money.

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Try this fat map that is listed as "SMOOTH" for the 2010:

 

 

 

FUEL                      IGNITION

+5  +5  0               0   0   0

+5  +7  +1             0   -5  0

+5  +7  +2             -3  -4  0

 

 

 

I had issues with stalling on my 2015, and used the fattest map I could find-----I haven't stalled yet (even took the bike on a short woods ride).  The power is also very smooth and manageable.  

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Try this fat map that is listed as "SMOOTH" for the 2010:

FUEL IGNITION

+5 +5 0 0 0 0

+5 +7 +1 0 -5 0

+5 +7 +2 -3 -4 0

I had issues with stalling on my 2015, and used the fattest map I could find-----I haven't stalled yet (even took the bike on a short woods ride). The power is also very smooth and manageable.

15 and 10 are considerably different. I have a 15 with a Rekluse also and 90% of my riding is woods. I honestly don't remember that last time I flamed out as the bike runs so good.

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No Rekluse here. Just stock clutch. Moto only.

The mapping I listed above is specific to a 2010, not my/your 2015.

Hope it helps yam314.

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Thanks guys, i will try out those maps. I still need to understand a little better about how each change affects the power.  I ride off-road, as well as MX.It was stalling on the track after braking hard, then trying to hit the throttle hard out of the berm. But I never had these problems before the Rekluse.

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Try this fat map...

 

If you're having trouble with flameouts at low speeds, especially during quick throttle closings and such, richer is rarely the right direction to push things.

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I agree.  Fat fuel maps seem counterintuitive, but that's what is listed quite often for FI bikes' woods mapping.  

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