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Post by jdbrees on Jun 1, 2008 19:42:33 GMT -5
I've just recently got a great SR500.
When accelerating from a stop in first gear, I can feel the clutch grab and release and grab and release - kind of a pulsating thing I can feel in the clutch lever and also through the power delivery to the rear wheel.
I suspect this is a symptom of something, but I don't know what.
Help?
Jerry
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Post by caferacercarl on Jun 2, 2008 3:32:39 GMT -5
Sounds like a new clutch cover gasket in one hand and a Clymer or Haynes manual in the other hand to me, these are simple bikes to work on and the problem will come to light quickly, don't be frightened of having a look, lube the clutch cable as well, check for blue colour of the steel plates and Barnett do a lovely clutch kit for these bikes, available at any bike shop. just ask here for help, there's plenty of clever people here,Stew, Colin J, SteveSC, etc, etc, Aero, Sven, ..........
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Post by aero on Jun 2, 2008 5:54:24 GMT -5
Check;-
The adjusting screw under the chain cover is correctly set.
Also that it isn't pulling out of its threads, which it can do.
A grabby clutch can be caused by all sorts of things - bent clutch plates, notches in the central boss, short heavy duty clutch springs, incorrectly assembled clutch assembly, worn bearings. Start at the easy options.
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Post by aero on Jun 2, 2008 5:55:01 GMT -5
Check;-
The adjusting screw under the chain cover is correctly set.
Also that it isn't pulling out of its threads, which it can do.
A grabby clutch can be caused by all sorts of things - bent clutch plates, notches in the central boss, short heavy duty clutch springs, incorrectly assembled clutch assembly, worn bearings. Start at the easy options.
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nsman
New Member
Posts: 25
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Post by nsman on Jun 6, 2008 17:36:01 GMT -5
Sure you dont have a warped brake rotor?
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Post by jdbrees on Jun 13, 2008 17:29:16 GMT -5
Brake rotors are fine.  I did a clutch adjustment (right side cover off) and it helped move the clutch engagement point to the middle of the clutch lever travel, whereas before the adjustment the clutch engagement point point was at the very end of the clutch lever travel (almost completely released). My bike is more or less stock so I think it's unlikely the clutch has seen abuse from too much power. Perhaps it has sat for an extended period sometime in its 30 year - 25,500 mile life. I suspect new clutch plates and springs will be on the menu over this winter. Jerry |
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Post by jdbrees on Jun 13, 2008 17:30:59 GMT -5
I meant the "other"  right side cover! |
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Post by jdbrees on Jun 23, 2008 20:45:16 GMT -5
I had some problems with the starting mechanism (see sobriety post).
I had to remove the right side cover to address the starting issue so I put new clutch plates in while the cover was off. Still have grabby clutch.
While cleaning the insides of the left covers, I discovered that the nut which holds the front sprocket in place was loose - even though the nut keeper plate was peened over to the nut face. I flattened the metal plate and tightened the nut - tight this time - and re-peened the keeper in place.
A test drive yielded a noticeable improvement, but still some grabbiness.
I'm wondering if perhaps the rubber pieces that comprise the "cush" drive mechanism are wore out and contributing to the grabby feel on initial acceleration?
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Post by stevec5000 on Jun 23, 2008 21:34:29 GMT -5
Are you sure the clutch pushrods are in good shape and not broken?
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Post by jdbrees on Jun 24, 2008 6:17:53 GMT -5
I'm not sure of that at all.
I checked out the short pushrod and it seemed okay.
Other than becoming two pieces, what kind of problems can affect the pushrods?
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Post by stevec5000 on Jun 24, 2008 7:50:11 GMT -5
I'm not sure of that at all. I checked out the short pushrod and it seemed okay. Other than becoming two pieces, what kind of problems can affect the pushrods? The ends break off the long one. |
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right side cover!