R6 throttle tube fitted to a K4 650S - Page 2 - SV650.org

11-01-06, 10:37 PM

Hi All, Just can.t understand why this mod works , is it tricking the ecu in to thinking you are opening the right hand quicker than the standard tube.
and will it work on my K3
andy

12-01-06, 08:38 AM

Quote:

Originally Posted by andy owen

Hi All, Just can.t understand why this mod works , is it tricking the ecu in to thinking you are opening the right hand quicker than the standard tube.
and will it work on my K3
andy

The throttle is basically opened/shut by two wires wrapping round a tube, at the end of the twist grip (under that plastic cover at the left end of the twist grip). The R6 replacement just has a bigger diameter for it to wrap around, so for the same wrist movement, the bike accelerates (and gets engine braking) quicker than before.

12-01-06, 09:13 AM

Am slightly confused is it 5SL-26240-01 or is it 5SL-26240-00 and whats the difference????

21QUEST · 12-01-06, 09:36 AM

About £7

.

AFAIK they are basically the same but Yamaha charges more for one part number .Can't remember which one.

Cheers
Ben

Viney · 12-01-06, 09:43 AM

Quote:

Originally Posted by SVeeedy Gonzales

Quote:

Originally Posted by andy owen

Hi All, Just can.t understand why this mod works , is it tricking the ecu in to thinking you are opening the right hand quicker than the standard tube.
and will it work on my K3
andy

The throttle is basically opened/shut by two wires wrapping round a tube, at the end of the twist grip (under that plastic cover at the left end of the twist grip). The R6 replacement just has a bigger diameter for it to wrap around, so for the same wrist movement, the bike accelerates (and gets engine braking) quicker than before.

Now im preety good with these things, but im struggling to see how why you need to. I understand the priciple but at the end of the day the throttle can only be opened so much. This tube would have the same effect as if you cracked the throttle open quicker by hand, thus saving money and hassle?

I only have one cable. Makes the throttle much more snappier!

12-01-06, 09:54 AM

Quote:

Originally Posted by Viney

Quote:

Originally Posted by SVeeedy Gonzales

Quote:

Originally Posted by andy owen

Hi All, Just can.t understand why this mod works , is it tricking the ecu in to thinking you are opening the right hand quicker than the standard tube.
and will it work on my K3
andy

The throttle is basically opened/shut by two wires wrapping round a tube, at the end of the twist grip (under that plastic cover at the left end of the twist grip). The R6 replacement just has a bigger diameter for it to wrap around, so for the same wrist movement, the bike accelerates (and gets engine braking) quicker than before.

Now im preety good with these things, but im struggling to see how why you need to. I understand the priciple but at the end of the day the throttle can only be opened so much. This tube would have the same effect as if you cracked the throttle open quicker by hand, thus saving money and hassle?

I only have one cable. Makes the throttle much more snappier!

Especialy with heated grips, I find it awkward to twist the throttle round far enough for full throttle. So for me, the advantage is not having to turn the throttle as far.

12-01-06, 11:35 AM

I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs.
Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 11:40 AM

I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs.
Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 11:43 AM

I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs.
Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 11:43 AM

I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accelerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs.
Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 09:13 AM	#13
kashby Guest Posts: n/a	R6 Throttle Am slightly confused is it 5SL-26240-01 or is it 5SL-26240-00 and whats the difference????

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11-01-06, 10:37 PM	#11
andy owen Guest Posts: n/a	Hi All, Just can.t understand why this mod works , is it tricking the ecu in to thinking you are opening the right hand quicker than the standard tube. and will it work on my K3 andy

12-01-06, 11:35 AM	#17
andy owen Guest Posts: n/a	I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs. Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 11:40 AM	#18
andy owen Guest Posts: n/a	I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs. Using a larger grip will give shorter open acc time to the ecu.

12-01-06, 11:43 AM	#19
andy owen Guest Posts: n/a	I had a lot to do with efi on cars some years ago and the aftermarket system I fitted used the throttle pot as we have on the SV's not only for position but for rate of change of the pot, this gave an extra wide timing for the injectors as it new that the engine was accselerating. and dependent on how short or long the slam from closed was this gave larger or smaller opening times. a bit like a accel pump on the old carbs. Using a larger grip will give shorter open acc time to the ecu.