Tuning Yamaha Motors

net200777

Member
Is there a way to tune Yamaha Motors? Or is it aftermarket solution the only answer? I'm not trying to go faster, I just want to adjust the low end power curve.
 
the pwx has 5 non-adjustable modes.
5 options the previous engines from the Pw to the Pw-se and Pwx.
Eco+,Eco,Standart=PW Low energy cost high efficiency watio,Effective cadence range from 0 to 100 but to have a good nemton from 0 to 85.
Hight=PW-SE .cadence 0 to 110,Effective 0 to 95.Sport mode
PWXE = PWX.Cadence 0 a 120, Effective 0 a 110.Funny mode.

At higher levels more delivery of nemtow and more anchoring of available operational cadence.


You do not have an equal response by selecting the Eco mode by setting a cadence of 100 than by using the pwxe mode that allows higher cadence with much better newtom.


You have 3 engines in a single design that goes through stages of expansion or growth as you need.

The eco + mode is equal 50% = 125w.
The Eco mode is 100% = 250 w.
With these 2 modes the efficiency of the engine is 80% per watt on flat terrain, increase autonomy in kilometers reducing performance, the other modes lose that efficiency.


The only thing to unlock the speed limiter,out of warranty.
 
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I have a Haibike Sduro Trekking model with a Yamaha motor and the best performance seems to be the low speed hill climbing capability of the motor. Not sure why you would need to tune that performance.

I did unlock the assist speed but in reality it doesn't really add much speed capability. At speeds above 20mph the gear ratio kills the delivery of torque to the rear wheel so most of a mid-drives assistance is simply lost thru the gearing.

Mid drives are great for commuting if you like to just cruise along at say a speed of 15mph but time is money so I generally like to have the fastest average speed possible on my urban mobility needs so I ride a rear gearless hub motor bike most of the time. Don't get caught up in all the marketing hype about mid drives because for the most part they were the result of EU regulations on wattage ratings.
 
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