Blipping the throttle

[jonnay]

Hi,
Is there any need to blip the throttle on a 2t bike? I've recently found my back end sliding around when I'm downshifting from speed, and although it's not *too* dangerous (the slides only last a second or so), I'd still like to avoid it incase it happens on a corner, and to preserve my tyre, as well!

There's not much engine braking on a 2 stroke, and theres just about enough to lock the wheel, so would blipping the throttle help it at all? I don't really know how to do it either, so I'd just like to know whether it makes a noticeable difference before I go about asking mates how to do it.

A worthwhile skill to learn, or a waste of time?

Cheers,
Jon
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[stinkwheel]

Blipping the throttle helps to give a smooth change. If you are locking the wheel on a small capacity 2-smoke, I would say you are changing down way too soon.

You could lock the rear on my 660cc 4-stroke single by downshifting but you had to be taking the piss with the gearshifting or so hard on the brakes the wheel was barely touching the ground
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[Wave2k]

2 strokes have barely any engine braking so blipping the throttle would have no use ?
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[loply]

Evidently has enough to lock the wheel, wave...
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Yamaha SZR660 Caution to the wind, the throttle pinned!

[loply]

Sorry, to answer your question, blipping the throttle most certainly would prevent your from locking the wheel in the way you have been.

You do of course need to learn to do it smoothly, blipping too little will result in engine braking and too much is also dangerous as it can launch you into a corner faster than you mean to.
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Yamaha SZR660 Caution to the wind, the throttle pinned!

[Finglonga]

Blipping saves the gearbox greaf when changing down as it gets the engine and road speed synchronized and stops the crunch as you change down......or it should if you do it properly.
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[jonnay]

OK, cheers people, I'll set about trying to get to grips with it

Stinkwheel, yeh, it only happens if I bang through the box very quickly in the dry, but in the wet it was a bit more severe. I also had a tyre on there which was rather expired, and I imagine that didn't help matters. I'll see if it still does it with my new tyre now it's fitted

Thanks!

Jon
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[NC30UK]

Blipping stops the engine becoming starved of oil as high revs with no throttle means no fuel which on a 2 stroke means no oil. it's an essential thing to do on a race bike, helpful to do on a road bike.

The rear wheel is probably locking as you just drop the clutch when you change down.

When engine brakeing you have to let the clutch out more slowly than you do when pulling away!

[stinkwheel]

[Method]

I was thinking about this the other day...

I dont do it myself, but thought i would try it and couldnt...

So would someone care to explain how you blip the throttle to downshift - Properly.


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[SoND]

On the topic of engine braking...

Does engine braking do your motor any harm because it just doesnt sound healthy to me?
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[Milo]

[Wave2k]

i baraly lock the wheel on my 750 in the cold wet snow, so the 2t must have shite tyres and be changing down near the redline.
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[satans_BIG_helper]

I used to blip the throttle on the TDR and the mito when changin down through gears... it stopped the clunking problem i found... n wen coasting(in gear) i used to clutch it n blip throttle a little bit so that i knew 2T was goin through....
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(Yeah i forgot some too :S )

[Zimbo]

As suggested above, leave it in the higher gear till the revs have dropped a lot more, then change down.
I used to do the same thing, on a trackday last year i was braking from speed into a hairpin and skating the back wheel as i did so every lap, with accompanying screching of rear tyre.
After a few sessions, whilst waiting to go out, the marshal advised me to change down later to prevent this.
"Oh" said I, "i don't mind the back sliding under braking, doesn't bother me"
"well" sid he, "it's certainly bothering us . . . "
So i took his advice, and found I was no slower by leaving the downshift till later, the slides stopped, and I was more controlled into the bend. Lesson learned.

[riichy]

i just do it becouse, its sounds good ....

and makes it smooth too, i would say go for it blipp all you like cant do not harm
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[JonB]

Ever since the trackday I have blipped the throttle everytime I change down after a scary moment changing down into a corner.
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[Kickstart]

Hi

People change down without blipping the throttle. Wierd. .

All the best

Keith
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[Milo]

At first I started it because I'd heard it was good, I kept doing it because it sounded cool and I keep doing it because it's so much smoother to downshift and now totally natural to do.
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[EllioTT_GiXXeR]

I dont need to blip the throttle on the 600? Something i should know
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[Milo]

[stinkwheel]

Of course, if you have the revs bang-on, you need to neither blip the throttle nor use the clutch. Tricky though.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[NC30UK]

You don't NEED to blip the throttle, the rev's will rise of their own accord as you let the clutch out and the rear wheel won't lock provided you let the clutch out slow enough.

[colin1]

How exactly do you blip the throttle when down changing ?
I can only guess.
My guess is that you hold in clutch, blip throttle, then change down, then release clutch.

Or maybe you hold in clutch, change down, blip throttle, then release clutch.

Someone tell me what you are supposed to do pls.
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[EllioTT_GiXXeR]

Heard someone say that the back wheel can lock up when you change down in wet weather? i have never had this problem and i dont have a slipper clutch.

Colin your right in what you said, you mostly see racers doing it on the track.
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