Clutch slip.

Ive recently come bk from a tour around France which was amazing but have since realised that my bike is not the same after thrashing it around for a couple of weeks. I am having problems with acceleration, it seems that when i am sitting at 80mph i am revving at about 6000 revs, if i then open up the throttle all the way to overtake, it quickly revs up to 8000 with little change in pace then falls bk down to 7000 and accelerates normally. I have been told this could be to do with the clutch but not sure. Any ideas?

it does indeed sound like the clutch is slipping im afraid

Clutch cables stretch just the same as chains. A little adjustment is probably all that is required is all.

surely if the clutch cable stretches he will have trouble disenguaging the clutch, rather than it slipping when its fully out? i may be thinking about this wrong tho...

[Sid Squid]

Adjust first, condemn later.

There's a post around here somewhere that details how that's done.

[muzikill]

or details on the 'other' sv forum - or download the manual and use that.
could be as simple as a stretched cable or considering the amount of muck i found on the throttle bodies & behind the sprocket cover it could just be the mechanism needing cleaned and greased.

[Sid Squid]

If anything cable stretch will cause drag not slip, however a bit of plate wear will cause slip unless the adjustment is correct. Slip can be caused by overtight cable adjustment, but don't just adjust the cable, the clutch adjuster should be attended to first, like this:

Remove the front sprocket cover, then:

Originally Posted by Me!

Slacken off cable adjusters at top and bottom, loosen lifter locknut, back out screw a bit, ensure that lifter arm is as far down as it will go, gently turn screw in until it contacts pushrod, then back it out a bit, (~1/8th of a turn), then nip up the locknut, roughly adjust cable with lower adjuster - not too tight - then with top adjuster ensure that there remains a little slack all the way from lock to lock.

Adjust first, buy new bits when that's entirely proven to be ineffective.

In response to this:

Originally Posted by warrenhewitt10

surely if the clutch cable stretches he will have trouble disenguaging the clutch, rather than it slipping when its fully out? i may be thinking about this wrong tho...

Since it first happened my bitting point is now far later when releasing the clutch lever and when it when i first noticed it i pulled the clutch in and came to a stop, yet the bike was still moving forward when i released the brake even though the clutch was fully in.
Still cant get my head around what has happened though as it is showing mixed signs. Firstly i thought it was having trouble disengaging the clutch, and then since thought it must be the clutch slipping as it is revving high then drops bk to normal revs when i accelerate hard.

Quote:
Originally Posted by Me!
Slacken off cable adjusters at top and bottom, loosen lifter locknut, back out screw a bit, ensure that lifter arm is as far down as it will go, gently turn screw in until it contacts pushrod, then back it out a bit, (~1/8th of a turn), then nip up the locknut, roughly adjust cable with lower adjuster - not too tight - then with top adjuster ensure that there remains a little slack all the way from lock to lock.


Try this, I did on mine and it's much better! (Cheers, SS)