Trying Something ...

5453 Views 14 Replies 8 Participants Last post by srinath, May 4, 2019

higworld

Discussion Starter · Apr 9, 2019

Probably the only thing I don't like about the SCR ... well, aside from me being a 6'2" dude riding a small frame bike again, something Yamaha isn't at fault for ... is the throttle response at low speeds. It seems to be more of an on/off type of thing. Jerky, right when that's the last thing you want.

A few years back, I had the same issue with my BMW R1100GS. So I tried something called a Boosterplug. Worked like a champ. It fools the ECU into thinking it's much cooler than it really is, so the stock software gives it a tad more fuel. Takes the "lean" out, if you will. Really smoothed out the low speed throttle response, which on that big bike in the woods was key.

So, I just ordered one for the SCR. Hopefully it will do the same thing. Stay tuned.

Oh, and yea, I know I could have done the new intake/Ivan thing ... but for now I kinda wanna keep it stock as far as in-and-out. And I'm not looking for increased power. Just smoother roll on and off of power. Crossing things ...

1 - 15 of 15 Posts

Krixtoph

· #2 · Apr 9, 2019

Let us know how it goes. If there's a simpler option to smoothing the bike out instead of flashing the ECU, I'd be really interested.

franksy

· #3 · Apr 9, 2019

higworld said:
Probably the only thing I don't like about the SCR ... well, aside from me being a 6'2" dude riding a small frame bike again, something Yamaha isn't at fault for ... is the throttle response at low speeds. It seems to be more of an on/off type of thing. Jerky, right when that's the last thing you want.

A few years back, I had the same issue with my BMW R1100GS. So I tried something called a Boosterplug. Worked like a champ. It fools the ECU into thinking it's much cooler than it really is, so the stock software gives it a tad more fuel. Takes the "lean" out, if you will. Really smoothed out the low speed throttle response, which on that big bike in the woods was key.

So, I just ordered one for the SCR. Hopefully it will do the same thing. Stay tuned.

Oh, and yea, I know I could have done the new intake/Ivan thing ... but for now I kinda wanna keep it stock as far as in-and-out. And I'm not looking for increased power. Just smoother roll on and off of power. Crossing things ...

It will, I bought one a couple of weeks ago 👍

mototech101

· #4 · Apr 9, 2019

Krixtoph said:
Let us know how it goes. If there's a simpler option to smoothing the bike out instead of flashing the ECU, I'd be really interested.

I agree with you @Krixtoph and we want to be cost effective also - as some of us have to save slowly! ha!

cheers,

Mototech101

srinath

· #5 · Apr 10, 2019

This method will work if the bike is uniformly lean. I've heard this thing is lean at idle and in in the mid and dunno in the higher throttle positions.
In a way its an easy enough mod, I'd like to know how it turns outand would do it - BTW the temp sensor is in the upper triple - right under the Yamaha logo.
You could tie a chunk of ice there on a warm day and see what that does LOL.

MileHighSCR

· #6 · Apr 10, 2019

srinath said:
This method will work if the bike is uniformly lean. I've heard this thing is lean at idle and in in the mid and dunno in the higher throttle positions.
In a way its an easy enough mod, I'd like to know how it turns outand would do it - BTW the temp sensor is in the upper triple - right under the Yamaha logo.
You could tie a chunk of ice there on a warm day and see what that does LOL.

Try unplugging the O2 sensor and let her run open loop - should NOT throw CEL -
Mine has been unplugged since the exhaust fueling and intake mods...

See less See more

LeesRyde

· #7 · Apr 10, 2019

I may have to get on this bandwagon! It'd be nice to gently get rolling from an idle instead of bringin' up the "R's" and... "HANG ON,WE"RE GOIN' FOR A RIDE". :surprise:

franksy

· #8 · Apr 10, 2019

srinath said:
BTW the temp sensor is in the upper triple - right under the Yamaha logo.

Yep, there's an alien head under the upper triple on the near side, undo it and it'll drop down.

I unfastened my headlight to make it easier for me to tie wrap the wires. 10 minute job. 👍

srinath

· #9 · Apr 11, 2019

franksy said:
Yep, there's an alien head

Yup, that alien head controls the running of the bike.
We, someone - maybe me or … maybe someone else who is better at documenting stuff and not biased and a confirmed and proven cheapskate like me - should do this.

On a hot day - Put a bunch of steel nuts in your home freezer (Y'know like those stainless whiskey stones that are $20 a 6, but you can just use stainless nuts if you want your whiskey cold) and then put em onto that sensor.
Ride the bike.
Does it run better - and when and how and under what circumstances - OK.

Then on a cold day - put that sensor in under/in/whatever is your warmest spot when riding. So if ambient temp is 55 and its where the temp is 98.6 …
See how and where and what it runs like.

So when ambient is 80, you've tricked it to think its 50. Case 1.
Then when ambient is 50, you've tricked it to think its 90-95.

Write all of it down.

BTW that sensor plug should be extended to stretch to … well wherever you like.

Depending on what you find - a resistor in that line would make it richer, and - if you have to make it leaner - I'd be surprised, might as well call Ivan there.

See less See more

eddie

· #10 · Apr 11, 2019

Here's another gizmo to try. https://www.g2ergo.com/store/g2-street-throttle-tamer-tube-for-yamaha/

Me? I must be weird or something. When I got the Tenere 1200, I immediately liked sport mode over touring.
The FZ-09 "A" mode my dealer deemed "almost unrideable"? It was my default setting.
I cut smooth figure 8s in his parking lot in 1st gear with it & blew his mind.
I've never noticed the SCR throttle being sensitive.

higworld

Discussion Starter · #11 · Apr 12, 2019

OK, thoughts ...

1. It sucks to have to be here to sign for a DHL package.
2. That allen bolt is in a "three ****" place, meaning that's how many ***** I needed to unscrew it,
3. The Boosterplug wiring is a tad hard to conceal.
4. That moment in stock configuration, where at 2mph you try to *slightly* apply some throttle? Smoothhhhhh.

Haven't had it out yet for anything zippy, just around the neighborhood. But that should flip loops anyway. So, I like. Easier to keep throttle positioned at low speeds. No more sudden "revvvvs".

Reactions: 1

srinath

· #12 · Apr 26, 2019

The cheapest boosterplug is over $100.
You found any better ? Or did you pay that.
I am thinking of dropping a 10K ohm resistor in the thing if I have to pay 100 for it.

higworld

Discussion Starter · #13 · Apr 29, 2019

srinath said:
The cheapest boosterplug is over $100.
You found any better ? Or did you pay that.
I am thinking of dropping a 10K ohm resistor in the thing if I have to pay 100 for it.

Nope, I paid retail. It really is meant to solve a single problem, and it did for me. Yea, it was costly, but I own a boat so I'm used to small things costing big bucks. LOL!

higworld

Discussion Starter · #14 · Apr 29, 2019 (Edited)

I guess I never finished my review, at least as far as faster rides. At normal speeds, I don't see any difference at all. Hasn't affected mileage. But when I'm tooling around the narrow and u-turn-y streets of my neighborhood, that low speed throttle is smooth. No more "whoops, too much" or "crap, stalled" nonsense. If this thing had any ability as an off-road bike, the light touch throttle at low speeds would be perfect.

Now the clutch ...

I miss my hydraulics. But Yamaha clutches seem to always be a mismatch with me. I had an old V-Star that would engage 1mm from the level being fully extended. Never got used to that. Had to do some creative alterations to bring it back anywhere near normal. Every other brand I've owned seemed to be able to get it right without me having to notice and adjust for it.

Oh well, I do like this bike, despite the minor gripes. It does exactly what I need it to do.

The saddest part is, I won't be able to ride it for 4 months. We leave the country next week and won't be back until September. So it sits, waiting for me. At least I live in the Florida Keys, so every day is summer. No "non-riding" season here.

See less See more

srinath

· #15 · May 4, 2019

Nice work on the extended vacation in the middle of hurricane season.
I'll attempt a thermistor mod available on the bay for cheap, but not the "plug and play" like yours was - sometime - when I get to it. I never get into that oops mode, I am usually revving before hand, a bad habit from the GS500 - where pointless revving wasn't just the point, it also was necessary.
Cool.
Srinath.

1 - 15 of 15 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.