Snatchy throttles

[Sideshow Pob]

Normally, they pay the money and ride off and then return 10 minutes later to thank me for completely changing their bike and making it so much nicer to ride.
...
You could go with a postal flash...

Any chance you can offer this for a 2018 Honda CB300R?
I'm not interested in paying Power Commander money for it, but it would be very nice to join a raft of people thanking you for sorting out their bike's throttle response.
I understand I'd need a somewhat expensive cable to even connect to the Honda port, but as I'm living abroad a visit to you would not be possible.

Unfortunately, Woolich don't list the CB300R yet (and you're not the first person to ask me either, so hopefully it's on their radar to be added soon).

[Sideshow Pob]

Any help with a 2019 GSXR1000 by post?

Yes absolutely I can do that for you, no problem.

[Yorick]

Any help with a 2019 GSXR1000 by post?

Yes absolutely I can do that for you, no problem.

How much and quick turnaround?

Don't need any more power. Just cure the snatchty initial throttle opening?

[Sideshow Pob]

Any help with a 2019 GSXR1000 by post?

Yes absolutely I can do that for you, no problem.

How much and quick turnaround?

Don't need any more power. Just cure the snatchty initial throttle opening?

I've just PM'd you the cost - it's no secret actually, £200 for a Woolich bench flash including return postage.

I can normally turn them around same day but worst case is 48 hours.

[dern]

Nice, how much do you charge for the dyno session and the remap?

[dern]

Shame you're three and a half hours from me. Could you PM me a quote for a remap anyway please?
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PM'd
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I’m not getting your pm’s I’m afraid.

[Sideshow Pob]

Shame you're three and a half hours from me. Could you PM me a quote for a remap anyway please?

PM'd
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I’m not getting your pm’s I’m afraid.
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I'm not sure what happened there to be honest, sorry.
If you came up to see me in Lincolnshire I would need the bike on the dyno for a few hours and the cost is £500. There's plenty to play with in that ECU so we could then spend some time getting the engine brake maps suited to your personal requirements too.

[dern]

This is a video of my two KTM’s throttle play. The one on the right is the 1190 with no spacers fitted and the one on the left is with them fitted. They were dead easy to fit and given I don’t break any I’ve got enough to fit to the 1190 too although I’ll test ride the sd first to see if I like it. Couldn’t test ride it tonight as it was pissing it down.

[dern]

Went out for an hour or so and it’s made it a lot better. You still get the fuel cut off but it’s so much easier to control. It’s still a bloody handful but at least I feel like I’ve got a fighting chance.

[weeksy]

Went out for an hour or so and it’s made it a lot better. You still get the fuel cut off but it’s so much easier to control. It’s still a bloody handful but at least I feel like I’ve got a fighting chance.

That's sounds more like "I'll put up with it until spring" rather than "bike is awesome"

[dern]

That's sounds more like "I'll put up with it until spring" rather than "bike is awesome"

We’ll see. I do like it but I don’t think I’m a good enough rider to cope with how much of a handful this bike is. I love the power but I’ve gone wide a few times and it feels a bit sketchy sometimes. It does make me laugh a lot but every now and again it makes me go “oh fuck”.

I’ve got a few ideas of what to do next but experience tells me that this is a terrible time of the year to make such decisions.

[The Spin Doctor]

That's sounds more like "I'll put up with it until spring" rather than "bike is awesome"

We’ll see. I do like it but I don’t think I’m a good enough rider to cope with how much of a handful this bike is. I love the power but I’ve gone wide a few times and it feels a bit sketchy sometimes. It does make me laugh a lot but every now and again it makes me go “oh fuck”.

I’ve got a few ideas of what to do next but experience tells me that this is a terrible time of the year to make such decisions.

Tried dragging the rear brake as you start feeding the power in yet?

[dern]

That's sounds more like "I'll put up with it until spring" rather than "bike is awesome"

We’ll see. I do like it but I don’t think I’m a good enough rider to cope with how much of a handful this bike is. I love the power but I’ve gone wide a few times and it feels a bit sketchy sometimes. It does make me laugh a lot but every now and again it makes me go “oh fuck”.

I’ve got a few ideas of what to do next but experience tells me that this is a terrible time of the year to make such decisions.

Tried dragging the rear brake as you start feeding the power in yet?

No, well kind of... it felt really unnatural and I wasn't keen. The problem is now on transitions to a closed throttle as taking the play out of has pretty much sorted applying throttle.

[The Spin Doctor]

No, well kind of... it felt really unnatural and I wasn't keen. The problem is now on transitions to a closed throttle as taking the play out of has pretty much sorted applying throttle.

Well, at the risk of stating the obvious, no new technique will feel 'natural' - that's why we practice; to get to the point where we can use a technique without thinking about it.

[A_morti]

Something occurred to me today: the ECU can't cut fuel completely if the bike is idling in neutral, or with the clutch pulled in. How does it know if those conditions are true? Clutch switch and neutral switch.

Long story short, I've unplugged the clutch switch, and the bike does actually feel better at light or on/off throttle openings. The only side effect will be an inability to start the bike in gear, but I can't remember the last time I needed to do that anyway.

Not sure if the same will work on Euro5 bikes since one condition of that is the upgrade to OBD2 diagnostics, which means the bike needs to be aware if it's getting implausible data from any circuit related to emissions.

[Taipan]

Something occurred to me today: the ECU can't cut fuel completely if the bike is idling in neutral, or with the clutch pulled in. How does it know if those conditions are true? Clutch switch and neutral switch.

Speed sensor/ABS?

[A_morti]

Speed sensor/ABS?

These are parts on a motorcycle.
Ask me another!

[Mr. Dazzle]

It knows how fast the engine is spinning too.

[A_morti]

It knows how fast the engine is spinning too.

Yes, but consider two scenarios.

Scenario 1: you're rolling down a hill at 30 with the throttle shut, as you should. The bike will cut fuel completely to reduce emissions. That's fine until you get back on the gas and the bike effectively bump starts itself. Also fine if it's once at the bottom of a hill, but not ideal if it's in town every time the grade changes or the chain slack gets taken up, etc.

Scenario 2: ignoring if it's a good idea, you're in neutral or have the clutch pulled in while coasting down that hill at 30. The speed sensor gives the ECU the same reading but now irrelevant of rpm, the bike needs to give at least enough fuel to maintain idle, or as far as it knows, the engine will stall. It's that same idle's-worth of fuel which you'd get on a carburettor, I reckon, and from a fifteen minutes town ride it seems that it stops the bike having that hard on/off transition at small throttle openings.

Might be my imagination, might be limited to my bike/model. More testing to follow.

[Mr. Dazzle]

In scenario 2 the engine RPM will still be high, so the ECU will probably (should!) take that as the dominating input and ignore what the clutch says.

Also - is your clutch switch push to make or push to break? Have you tried shorting the wire, 'cause I'd have thought the default signal is 'off' and hence unplugging it changes nothing. I'd have thought the ECU expects and off signal from that switch most of the time because it'll be designed to still work even if the switch is broken. So disconnecting the wire doesn't fool the ECU into thinking you've pulled the lever?