Clutch must be "slipping" right?

NerpAngel

New Member

Sep 28, 2009

141

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Ellensburg,WA

Mar 14, 2010

• #1

This is the problem with my friends bike....
http://www.youtube.com/watch?v=PRMB1M4VgZQ

The small wheel turns fine when the spark plug is out... and this motor is only 10 miles old!

 

Last edited: Mar 16, 2010

NerpAngel

New Member

Sep 28, 2009

141

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Ellensburg,WA

Mar 16, 2010

• #2

buuuuuumpp

 

Ghost0

New Member

Mar 7, 2008

763

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Bellingham, WA

Mar 16, 2010

• #3

Yes that is definitely clutch slip. Either your clutch cable is too tight, which I can't tell from the vid or you need to adjust the flower nut.

 

NerpAngel

New Member

Sep 28, 2009

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Ellensburg,WA

Mar 16, 2010

• #4

I took the cable out and just tried to walk it forward and it still didn't spin. Also, i've tried like 10 different flower nut spots and nothing has worked

 

Ghost0

New Member

Mar 7, 2008

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Bellingham, WA

Mar 16, 2010

• #5

Well if the flower nut did not solve your problem then I think the problem is more severe. Like something is really broke and not just out of adjustment. Check in Norm's repair section for a thread on clutch removal and repair. I fear that the large spring in your crank case has broken, of course it could have just loosened up but that is where I would start.

 

NerpAngel

New Member

Sep 28, 2009

141

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Ellensburg,WA

Mar 16, 2010

• #6

this is weird.. cause i don't know why it can spin half way one way but then stop the other half. I'll check his thread

 

Dave31

Active Member

Mar 1, 2008

11,199

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38

Aztlán, Arizona

Mar 16, 2010

• #7

I am on steam powered service so I could not watch the entire vid, But I did hear something clicking? Do we know where that sound is coming from? Is it motor or from the bike?

Try......... http://motorbicycling.com/f30/external-adjustment-primary-clutch-spring-13973.html

 

NerpAngel

New Member

Sep 28, 2009

141

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Ellensburg,WA

Mar 16, 2010

• #8

the clicking could have been just the bike. the first part is when it's in neutral and the bike is the part click clickin'.

 

NerpAngel

New Member

Sep 28, 2009

141

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Ellensburg,WA

Mar 17, 2010

• #9

Update:...

We realized that when we pull the clutch lever in and out, that plate that sits right below the flower nut doesn't fully move in and out. A section of it stays behind while the rest of the plate moves freely back and forth. Why is this one spot sticking like that? The spring right behind this plate is flat against the plate... I even tried my spring on his bike and it was the same problem..

 

Ghost0

New Member

Mar 7, 2008

763

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Bellingham, WA

Mar 17, 2010

• #10

It is very common for the pressure plate not to move away from the clutch pads evenly, just the nature of things. Nothing to worry about. Your problem is that the internal spring is no longer applying enough force to engage the clutch. I still think that either your internal spring is broken or has spun loose. Look at Norms clutch repair and rebuild section and you can see how to remove the clutch and output shaft. This will tell you if this is where the problem is.

 

D

dytesaft

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Nov 9, 2009

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30

norway

Mar 18, 2010

• #11

a pretty similar problem happened to me a while ago, i had tightened the flower nut to max but it still wasnt engagin, so i took out the clutch pads and cleaned them with brake cleaner and inserted them back in. now my flower nut is hardly tightened at all and clutch works perfectly and not slipping.