scrapveiw said:
sorry to drag this up again (pardon the pun ) when i pull the clutch lever , the clutch cover travels 3-4 mm , think the problem is that all the plates are staying huddled together and the only bit that is parting, is the cover from the end clutch plate, i have seen rubber rings between the plates on other bikes that force the plates apart when the clutch is depressed.
what are the differences from early to late berg clutches ? anyone got a pic ?
regards
scrap
Hi Scrap,
I had a 94 501 and had the same problems, and it was especially troublesome for me since my races are dead engine start. So here's what you need to do fix the problem you are having, this is exactly what I did and it worked perfectly under some real extreme conditions.
The first thing that you need to do is to make sure that your metal plates are not warped. The best way to do this is just to buy new metal plates so you know that everything is right.
The second thing you need to get are a set of clutch springs for an FE350, these springs are more than strong enough to prevent slippage and greatly reduce the lever pull. Trust me on this one, I flogged the hell out of my 94 501 racing national Hare & Hounds and the clutch never slipped.
As Oyk said you need the 97 pressure plate. It is of heavier construction and does not flex like the earlier ones did. I am pretty sure that the 97 pressure plate will work fine with your 95 inner hub.
You can also get a the 97 domino handle bar control which has a nice adjust on the fly adjustment set up, I had the same thing and it worked out great.
Now, the 97 pressure plate uses shims under the throw out bearing instead of the adjustable bolt with the lock nut and cotter pin, to adjust the free play between the actuating push rod, and the cable lever on the motor. This part of the set up is crucial to get right, so you can get the most lift out of the mechanism. Examine the push rod, and the lifting mechanism for damage/wear. You will notice that the lifting mechanism has a flat spot where the actuation rode sits, Obviously there needs to be some play between the actuation mechanism, the actuator rod, and the throw out bearing
With the pressure plate off, push the actuating rod in with your thumb. Now, kind of wiggle the actuating arm back and forth a bit to get the feel of how the actuator works. You can see that the flat of the actuator itself must be facing as near as possible directly towards the clutch to get the maximum lift. TAKE NOTE OF WHERE THE ACTUATOR ARM ON TOP OF THE MOTOR IS POINTING WHEN YOU HAVE THE ACTUATOR ROD PUSHED IN, WITH YOUR THUMB. The owners manual, and the workshop manual are not a whole lot of help when it comes to making these adjustments, they just tell you how much play you need at the handle bar lever. However, The 1998 work shop manual says: " The clutch lever on top of the engine should engage at 90 degree's-If not change the adjustment shim". (when I finish writing this post I will scan the two pages from the 98 workshop manual and put them in my gallery for you)
So, obviously you need a little bit of play here so that as the clutch pack wears you will not be pre-loading the pressure plate, which would result in clutch slippage, just a couple of mm's of play at the end of the engine mounted actuator arm is all that is needed. However, you won't be able to tell how much play you have until you install the clutch pack, and put on the pressure plate. You need only mount four springs and bolts, just enough to compress the pack evenly so you can check the free play at the engine mounted arm. If it too little you will need a thinner shim, and if it is to much you will need a thicker shim. I believe these shims are of hardened material. Some shops that have carried the brand for a long time will probably have a few of these little gems laying about. They are item #2 in the exploded view of the clutch.
Once you have this free play sorted out assemble the motor. The original manual recommends 5W-50 oil, and this will also play a part in how well your clutch works. However, once the oil is good and hot, even if of a higher winters rating it will probably be okay.
You will be amazed at how little effort is required now to pull in the clutch, and how well the clutch works. Mine worked really great until I really abused the clutch and warped the metal clutch plates and then it dragged a little, but, not like it did before.
I know this seems like a bit of work, but, if you are going to keep the bike, and want it to work great then these steps will get you there.
If you have any questions feel free to ask.
Dale