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Old 15-12-08, 09:54 AM   #1
noob-saibot
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Default Quick question(s)

What is clutch drag and how can you tell if your clutch is dragging? Is it to do with incorrect adjustment of the clutch adjustment screw? If so, Is it that its backed out too much, or too little? Or is it another factor?

Nothing serious going on. Just thought of it while dropping off last night and maybe im having a bit of a brain fart on this one, but i cant for the life of me figure it out
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Old 15-12-08, 10:16 AM   #2
Grinch
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Default Re: Quick question(s)

There are a number of things it could be, normally your notice the drag when you put the bike in gear and hold the leaver in, but the bike still wants to move forward. Clutch slip is when you release the clutch and go to accelerate from first but the clutch slips and does not engage forward motion for split second or two.
Both of these can be a result of the following -

  1. Incorrectly adjusted chain.
  2. Worn, un-lubricated chain.
  3. Incorrectly adjusted cable.
  4. Worn, un-lubricated cable.
  5. Worn 'worm-drive'
  6. Un-greased 'worm-drive'
  7. Incorrect oil.
  8. Worn clutch basket/plates.
So start with checking your chain adjustment, it can be other things, but best look at the simple stuff first.

Last edited by Grinch; 15-12-08 at 10:20 AM.
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Old 15-12-08, 10:22 AM   #3
noob-saibot
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Default Re: Quick question(s)

Ah no, everythings fine bike wise grinch, just popped into my head just as i was nodding off and kept myself up for ages tryin to figure it out but couldnt really. So what is clutch drag? Is it the clutch is not fully 'engaged'? How could you tell?
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Old 15-12-08, 10:27 AM   #4
Grinch
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Default Re: Quick question(s)

Well its normally clutch adjustment that causes the drag, with the clutch leaver in, the bike tries to move forward when its in first. The SV does it if you put the wrong oil in, as it doesn't like fully synthetic.
Most of the time its due to the worm drive not being greased, or adjusted, then from the lack of greasing the bearings break down and it just gets worse and worse.
The other are contributing factors, but you do need to keep a eye on that worm drive.
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Old 15-12-08, 10:38 AM   #5
noob-saibot
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Default Re: Quick question(s)

So would it be the worm drive adjuster screw being turned in too much or backed out too much?
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Old 15-12-08, 10:51 AM   #6
Grinch
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Default Re: Quick question(s)

Turn in to far would mean that when you release the clutch leaver it hasn't really completely disengaged.
Normally the trick is adjust the screw until you feel a pressure and then back it off a quarter turn.
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Old 15-12-08, 11:26 AM   #7
Stig
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Default Re: Quick question(s)

The condition of the chain has no relevance to drag or slip.
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Old 15-12-08, 11:47 AM   #8
noob-saibot
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Default Re: Quick question(s)

Quote:
Originally Posted by Grinch View Post
Turn in to far would mean that when you release the clutch leaver it hasn't really completely disengaged.
Normally the trick is adjust the screw until you feel a pressure and then back it off a quarter turn.
Could you tell if a clutch is not fully disengaged while moving/riding?
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Old 15-12-08, 11:51 AM   #9
Grinch
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Default Re: Quick question(s)

It would show up as stiff gear selection on the downward shift. Probably more noticable when trying to get into low gears and neutral.
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Old 15-12-08, 11:56 AM   #10
noob-saibot
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Default Re: Quick question(s)

Quote:
Originally Posted by Grinch View Post
It would show up as stiff gear selection on the downward shift. Probably more noticable when trying to get into low gears and neutral.
Are you engaging the clutch when the levers out, or disengaging? What about if the clutch is not fully (insert correct term) when the lever is fully out? Surely this would show up somehow while poodling along?

Last edited by noob-saibot; 15-12-08 at 11:59 AM.
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