I know, I know; more stuff on flashing, sorry. I searched all over the forum but couldn't find answers to the below, so would appreciate some advice.
A few questions on the various options I can choose for an ECU flash - what do they mean and why would I want it done?
1. Disable AIS valve:
I searched the forum and found this:
The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons. BAD for me as a greeny; the main reason I ride a bike and not drive a car is for environmental reasons.
By removing the air injection system you can achieve an accurate A/F ratio. GOOD. Does this mean the throttle and air/fuel delivery will be smoother? Does it also actually mean the engine will be more efficient and so, by saving more fuel, is actually as green as the ungreenness of flushing out those unburned gases?
2. Disable injector decel cut. So does this mean that all fuel is cut when not accelerating, thus when we accelerate there’s a hiatus/hiccup before the response occurs? Or is this to do with engine breaking?
3. Optimised timing maps for 91+ octane is offered by one of the flashes I found. I was told by Yamaha and a bike mechanic mate to put 95 octane in? If it’s optimised for 91 is it then okay to use 91, or am I better using 95 regardless of optimisation?
4. Is there an additional charge if I take the bike along, as they have to remove the ECU, or can it be done in situ?
5. Why do people change to e.g. a K&N filter? Faster, more efficient? I ask as I guess it’ll change the flash settings so, as I only want to flash once, I want to know if I should change the filter first.
Thanks people.
A few questions on the various options I can choose for an ECU flash - what do they mean and why would I want it done?
1. Disable AIS valve:
I searched the forum and found this:
The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons. BAD for me as a greeny; the main reason I ride a bike and not drive a car is for environmental reasons.
By removing the air injection system you can achieve an accurate A/F ratio. GOOD. Does this mean the throttle and air/fuel delivery will be smoother? Does it also actually mean the engine will be more efficient and so, by saving more fuel, is actually as green as the ungreenness of flushing out those unburned gases?
2. Disable injector decel cut. So does this mean that all fuel is cut when not accelerating, thus when we accelerate there’s a hiatus/hiccup before the response occurs? Or is this to do with engine breaking?
3. Optimised timing maps for 91+ octane is offered by one of the flashes I found. I was told by Yamaha and a bike mechanic mate to put 95 octane in? If it’s optimised for 91 is it then okay to use 91, or am I better using 95 regardless of optimisation?
4. Is there an additional charge if I take the bike along, as they have to remove the ECU, or can it be done in situ?
5. Why do people change to e.g. a K&N filter? Faster, more efficient? I ask as I guess it’ll change the flash settings so, as I only want to flash once, I want to know if I should change the filter first.
Thanks people.