Instantly 15 more free HP

[Combo]

I understand what the engineers have to put with to meet regulations in a number of countries and I agree with you.


Whats funny is that a 50 cent fuse jumper will flush all that time and money down the toilet and flip off the EPA. ::015::

 

[creggur]

I've been thinking about this "mod" for a while and here are my highly scientific, prolific, and you get what you pay for thoughts on what it does, why it exists, etc.;

I don't believe this is a hidden software engineer program workaround.

I believe this exists out of necessity due to the world we live in where lean is clean, or something like that. Emissions, emissions, emissions,.........

If anyone here has spent any amount of time tuning motors with the old carb set up and remembers what happens when the bike is lean jetted you will have an idea as to why this, IMO, exists. Lean conditions cause the rpms to "hang." This makes shifts balky at best.

So, if the clutch switch signals the ECU to go "rich" when engaged the shift points will have a good response from the motor during shifts.

You would think that one could tell a significant difference during neutral, non moving conditions when the clutch switch is engaged but I would almost bet that the algorithm requires an input from the speed sensor to initiate the "rich" condition.

The bit where the bike falls on itself sometimes just after take off and during clutch engagement? What if it is caused by the bike seeing movement and a clutch switch activated initially (during friction zone) so you are getting the "rich" condition. As the clutch lever is let out the switch disengages and then the ECU returns to the lean map. At that moment the bike would fall on itself and then pick back up under the new "lean" condition and stock mapping.

These are my thoughts on the matter. Thoughts, ideas, etc.?

This sounds like the most plausible scenario anyone has presented thus far. Anyway, until I get around to getting the flash done, I'm sticking with the fuse mod. I put over 600 highway and backroad miles on yesterday with nary a hiccup and returned with 42.7 MPG average on the cluster (down maybe .4 from previous similar, but shorter, rides). I'll take that small hit in fuel economy to have a smoother running bike...

 

[Monty]

Hi all,

Just returned from a camping trip with the fuse mod. I think the mpg may be down a little, but this could be due to me accelerating more briskly! Still averaged an indicated 52mpg.

The bike rides much better and is much stronger driving out of corners. Otherwise stock, and just pulls smoothly and strongly from low down. It is so much better that I am not sure whether to fit a switch for this mod or to pay for a reflash.

I will keep pondering!

Matt

Sent from my GT-I9100 using Tapatalk 2

 

[protondecay123]

The mod has been on my bike for a week now. The last two days while at the SLAP dual sport rally the bike has been on 879 miles of mixed interstate, state highway, and dirt roads. It's previous MPG was 44.7. Pulling into the garage the MPG was 44.8. That's no significant change.
Why this mod makes such a huge difference in the bottom end in the lower gears is unclear to me. But the upper gears appear to be unchanged.

 

[Twisties]

I understand what the engineers have to put with to meet regulations in a number of countries and I agree with you.


Whats funny is that a 50 cent fuse jumper will flush all that time and money down the toilet and flip off the EPA. ::015::

Well, and flipping off everyone and everything that has to breathe, but why worry about a silly little detail like that.

 

[creggur]

Well, and flipping off everyone and everything that has to breathe, but why worry about a silly little detail like that.

Bonus Flip-offs! ::012::

Thanks for pointing that out...

 

[terryth]

By far the most logical explanation to me for this is that this simply puts it into a fault code and disables the S and T modes and changes the throttle response curve of the fly by wire system w/o any change in actual power or jetting at all, just like the Sport and Touring modes do, just a change how it responds to twisting the grip that makes it feel snappier.

 

[coastie]

So you loose touring mode when you do this?

 

[3putt]

It is still there and I think it is different from "S" mode, but not by much. Pulls strong through the gears.

 

[Monty]

I cannot notice a difference between S and T modes with the fuse mod in place. If it is there it is more subtle than I can detect right now. I am going to order my "switch kit" from Eastern Beaver today. ::26::

 

[Bundu]

I cannot notice a difference between S and T modes with the fuse mod in place. If it is there it is more subtle than I can detect right now. I am going to order my "switch kit" from Eastern Beaver today. ::26::

that would make sense - if the bike performs better in "S" mode with the clutch switch closed, fit a switch and use the "T" mode for off-road and wet tar un-switched

 

[NoMorBills]

With the jumper in there is no S or T mode. Thus no delay in throttle response. I don't believe it is a fault mode just disables the dampening. You get direct throttle response. Not a richer MAP. Not good for offroad. No more off light stumble.

 

[Monty]

that would make sense - if the bike performs better in "S" mode with the clutch switch closed, fit a switch and use the "T" mode for off-road and wet tar un-switched

Indeed. I imagine I will leave the bike in T mode most of the time, and use my new bar-mounted switch to activate "Super S" mode when needed. ::008::

Matt

 

[CJBROWN]

Forum noob here...took a test ride on one out at Malcolm Smiths today, the Yamaha factory semi was there with all the bikes. Just got home, it's 100 deg out there today. :

The re-map thing in first gear is horrible. Feels like the bike stalls. I would rather modulate the throttle myself. Since I knew about it from this thread I REALLY noticed it.

"T" mode is just downright boring. S mode is fine except for the start off lag. Brakes are nice, ride is super smoot h- probably the best feature in my impression. The bike does not feel much heavier than my 400lb Kawasaki Versys, but is MUCH smoother. Roll-on throttle response is also one of it's best features, lots of torque. Wind management is outstanding - I've never seen a stock screen that doesn't buffet, this one is smooth to 75.

It definitely needs an exhaust system as it sounds like a lawmower. And there is a lot of valve lash noise, ticking, etc.

The demo had heated grips and yam-brand panniers - they are very nicely done. The pillion is very nice.

Overall I liked the bike. Not sure I want to drop that much coin for it. Going to test ride a GS and a 990 Adventure.

Just thought I would comment on the throttle lag and my impression from a test ride.

 

[Tremor38]

Next test. Find a semi－loose surface, and accelerate briskly to ensure TCS still works with clutch switch jumped.

Sent from my F-05D using Tapatalk 2

 

[Ryan92]

I just found this thread, LOL. Nice to see that my "fuse mod" was a hit. You guys are welcome.

 

[Blue_eyes]

This mod is as old as Metusalem. I have done the same for my KLX250.

See http://www.svendura.de/tuning.html

Ity works for many bikes.

It makes the bike think it is in first gear and uses the according ECU map/settings.

 

[Monty]

This mod is as old as Metusalem. I have done the same for my KLX250.

See http://www.svendura.de/tuning.html

Ity works for many bikes.

It makes the bike think it is in first gear and uses the according ECU map/settings.

First gear without the mod is very restricted. With the mod is much more lively. Guessing that it is therefore not the first gear map that is activated in the case of the S10?

Matt


Sent from my GT-I9100 using Tapatalk 2

 

[Blue_eyes]

First gear without the mod is very restricted. With the mod is much more lively. Guessing that it is therefore not the first gear map that is activated in the case of the S10?

Matt


Sent from my GT-I9100 using Tapatalk 2

Yes, you are probably right. For the KLX250 it engages the 1st gear map, the KLX250 has a gear sensor and the higher gears are restricted in rpm's, so this mod allows you to reach the higher revs in the higher gears on the KLX... Would be interesting to know what ECU settings this mod engages on the XT1200Z.

 

[protondecay123]

Next test. Find a semi－loose surface, and accelerate briskly to ensure TCS still works with clutch switch jumped.

Sent from my F-05D using Tapatalk 2

It seems that the TCS continues to work. I usually turn it off in the dirt. But this weekend left the TCS on going uphill on some gravel and washboard . The yellow light blinked away and you could feel it engaging.