It will be interesting to see what changes Yamaha will make in the Canadian spec YZF-R1 for the 2010 model year.

I’ve taken delivery of my ’09 R1 in Yamaha Blue and I think it’s beautiful!

Definitely a “warm” ride with the undertail exhaust but I always wear leathers.

My butt tells me that the “Comfort Seat” is a great accessory to add post delivery!

I certainly expect to enjoy my ’09 R1 despite not having “bragging rights” from the ’09 liter bike comparos.

Is the ECU on the Canadian version of the ’09 R1 the same as the “Euro Spec” U.K. ECU?

If not, what are the specific differences?

Many thanks as always!

The part number is different between the 2 ECU, but the performance spec is same. We do know the wire harness is different for EU models so that could be the reason. Another could be markings required for EU3 emission requirements vs those required for EPA. Not all EU countries have the immobilizer system also (although UK usually does).
DS

What I meant to ask was whether the throttle blade (plate) opening parameters are altered when using the Y.E.C Racing ECU Set etc. for the ‘09 R1?

Many thanks!

Russ, the Race ECU and wire harness has many changes (too many to go into) from stock.
It eliminates the d-mode due to allowing the rider/tuner to dial in “his own mode” and then save it as map 1 or map 2.
The throttle plate angle cannot be quickened more than 1:1 (but many racers are using a different ratio throttle to pulley), but you can slow the angle by varying amounts and in various gears as required for greasy surfaces or certain tracks.

Cheers
DS

The general consensus in at least one R1 Forum on the Internet has been that the inability of the throttle blades to open more than 60% below about 7000 RPM inhibits performance.

If I understand the mechanical principles involved correctly, it does make sense in terms of basic physics. At lower RPMs, the smaller the throttle blade (plate)opening, the higher will be the velocity of the air being sucked into the engine during the intake stroke(in comparison to a larger opening).

Can you advise how these parameters have been altered in the GYTR ECU for the ’09 R1?

Super thanks again!

Could Dave Shepherd please explain Yamaha’s rationale for limiting throttle blade opening via its chip controlled throttle. Reportedly, the throttle blades will not open more than 60% below about 7000 RPM no matter how much throttle input is given regardless of D-Mode. Perhaps this is a primary reason for the ’09 R1′s comparatively poor performance in the liter bike comparisons.

If Yamaha improves this on the ’10 R1, hopefully they will make it a backwards compatible fix for my ’09 R1.

I didn’t find any information on this in the Technology Section of the web site.

Many thanks!

Cheers,
~bb~

Hi BB
I’m telling you… buy stock in Dry Cleaners… we’ll make a killing. lol

André Harris

Just reading between the lines – I think you enjoyed the R1. Can only imagine the pull and handling the R1 has to offer. The sound…….

When you say track test..do you just load a bunch of bikes up and head out…or is it a controlled outing giving the staff a chance to ride– to best experience the bike?

Selectable drive – can you explain that in you next post – just guessing ….. fuel map?

In another post – can you explain and show pictures of the variable intake?

In closing -your enthusiasm brought back memories (I’m old) of driving latest 650 …… while working for the very new Yamaha Ca. My shock and awe mirrored yours.

Not such a happy ending….. rode them a lot trying to figure why some were tank slappers…I took one out that was set up to run coast to coast (that was a big deal back then) to enjoy the thrill and to see if it was a slapper. That all ended – a car ran a light on Finch. Good thing I wasn’t on my GT80.
Hi Bob,
re; the “selectable drive” or D-mode as factory has named it, is not a fuel/ignition mapping as has been used by some other manufacturers.
The R1 has our chip controlled throttle (sometimes referred to as fly-by wire) and this allows us a whole new dimension. The D-mode merely changes the rate of throttle opening and the actual opening angle. In standard, it opens 1:1 with the twistgrip. “A” mode gives a faster opening rate and wider angle. B mode gives us a slower rate and less angle for those wet slippery surfaces.
I will put some information on the Yamaha Motor Canada website about both the D-mode and also the Lifting intakes (YCC-I). Many people haven’t noticed the “Technology” section on the web site. It has many items that I’ve been adding over the past couple of years. If there is something missing (old or new) that you feel should be there, let us know.
cheers
Dave S.

Hi Bob,
Glad u like my blog.
I certainly enjoyed doing the research.

André Harris
Event Coordinator