Grubee/Skyhawk ??

Hajuu · #1 11-27-2009, 10:32 AM

Hey guys,

over the past few days ive been doing my first install and ive run into a pretty weird snag now, right at the end!

Basically it seems that the clutch pin that runs through the sprocket, doesn't actually *do anything* ?

I cant even work out how to debug such a problem because the pin simply comes out, cannot be pushed inwards, even manually.

What makes it even stranger is that I fail to see how the clutch lever actually connects to this pin in any way. The clutch lever thing seems to consist only of a half-crescent shaft kind of thing which remains entirely in its shaft housing thing..

Very confused, and annoyed because it means I have to walk to work (10km per trip) instead of riding for another day.

Any ideas/suggestions etc etc?
Cheers

moonerdizzle · #2 11-27-2009, 10:39 AM

the clutch lever as you put it only pushes the pin in to disengage the plate from the clutch pads. just put the clutch lever and cable on and adjust the cable so shes fairly tight. my clutch was a little stiff when i got it too.

Creative Engineering · #3 11-27-2009, 10:43 AM

The lever can be difficult to push...it is impossible to push the pin in with your finger.

Put the lever assembly back on and push the lever hard it will move.

Attach the supplied cable to the lever at the handle bars, and the lever at the engine. Adjust the cable so that the slack is very little or none.

Here is an exploded view of the assembly...The cam, (cresent thingy), in the exploded view looks different. The function is the same.

http://motorbicycling.com/f30/animat...haft-8939.html

Jim

**Bikeguy Joe** · #4 11-27-2009, 10:44 AM

Is there a ball bearing behind the rod? There should be.
The "half moon" when turned pushes the rod in.

Hajuu · #5 11-27-2009, 11:00 AM

haha wow, thanks for the speedy replies!

I took a quick look again after reading what you guys were saying but the whole thing that started the investigation was that even manually turning the clutch lever thing wasnt engaging/disengaging the clutch. It also feels completely free, like I say as though it isnt connected to anything.

DOC BOLM · #6 11-27-2009, 12:05 PM

Like joe said see if the ball is still in the hole behind the pin.H.D.

DonnnN · #7 11-27-2009, 12:33 PM

seems to me that ball is missing lol..

Hajuu · #8 11-28-2009, 04:00 AM

heh yeah I cant see or notice anything like that behind the shaft.

Any idea what action I can take, im not sure if it was included from the distributor or not.. maybe just the type of bearing it is and how to replace it?

It's the last thing in front of me firing it up so I really want to get it fixed tonight, already had to walk to work today heh

Thanks a lot!

Hajuu · #9 11-28-2009, 06:28 AM

oh awesome I just checked out those animations, thanks so much Creative Engineering.

It would definately explain why the lever feels entirely disconnected: because it is, because the clutch shaft isnt sticking out far enough.

My only question would be as to the bearing size, I guess as long as its as wide as the shaft slot then I cant go too wrong, but id assume that itd be important that it wasnt too far forward or back

I'll check it out as soon as I can get some replacement bearings. If anyone knows the size or even approximate, please let me know, cause ill just be buying many random ones and seeing what works best.

Cheers guys.

Creative Engineering · #10 11-28-2009, 07:52 AM

Quote:

Originally Posted by Hajuu

oh awesome I just checked out those animations, thanks so much Creative Engineering.

It would definately explain why the lever feels entirely disconnected: because it is, because the clutch shaft isnt sticking out far enough.

My only question would be as to the bearing size, I guess as long as its as wide as the shaft slot then I cant go too wrong, but id assume that itd be important that it wasnt too far forward or back

I'll check it out as soon as I can get some replacement bearings. If anyone knows the size or even approximate, please let me know, cause ill just be buying many random ones and seeing what works best.

Cheers guys.

There's no need to try random bearings.

The original was 8mm. A 5/16" ball is .0025" smaller, and a lot easier to find. You will never notice the .0025" difference in diameter.

If you check the area where you did the assembly, you might find it. It's common for it to fall out and go unnoticed.

Jim