Clutch shudder when setting off in 1st gear

[yaris2010RS]

something i noticed on my way home today tring to glide down a hill, possibally completly off topic but still has to do with clutch. i was driving down the road at crusing speed 100 KM/H and around 2,500RPM, so i depressed the clutch shifted to neutrel (no gear) and let go of clutch. i watched my RPMs drop to 1,000 then 500(my normal idle) then jump up to 1,500 and kept bouncing from 500 - 1,500. this only happens if i'm off the clutch and in no gear, if i'm holding clutch it wont bounce around. i took a video so if u dont exactly follow what i'm saying follow link

i'm sorry, its very bad quality and uber long, lol, i started messing around after a while, lol. and since my right hand (shifter hand) was holding phone made for a very bad experience. lol

http://www.youtube.com/watch?v=pEb1NY1xSXU

[BuildCode]

Originally Posted by yaris2010RS

so u release clutch then rev a bit to get it aprox 2000RPM and then depress clutch and 1st? tomorrow on my way to school will definatly give it a shot.... lol

Less than that: 1,000 or 1,500 rpm. You'll know it's right when you can shift into first with zero resistance :)

Originally Posted by yaris2010RS

something i noticed on my way home today tring to glide down a hill, possibally completly off topic but still has to do with clutch. i was driving down the road at crusing speed 100 KM/H and around 2,500RPM, so i depressed the clutch shifted to neutrel (no gear) and let go of clutch. i watched my RPMs drop to 1,000 then 500(my normal idle) then jump up to 1,500 and kept bouncing from 500 - 1,500.

I don't put mine in neutral at that high of a speed, but from 40mph (60kmh) my revs will bob once or twice, but not as many times as yours did in the video. I don't worry about it, at all.

[yaris2010RS]

Originally Posted by BuildCode

i don't put mine in neutral at that high of a speed, but from 40mph (60kmh) my revs will bob once or twice, but not as many times as yours did in the video. I don't worry about it, at all.

lol, wasn't really too worried about it and probably not gonna do it too often either. lol. just one day on the highway going down hill and decided to try it.
jsut wondering if it has to do with the constant revving at idle which i do find very annoying.

my friend sudgested it has to do with cold wind coming in and the engine trying to keep going or resistance the tranny is putting it in even in no gear.