H1 clutch woes

[kawonda750]

Is seems that this H1B is the devil.
The clutch is not right. I have the hub in the blow up above. 6 steels, seven fibre plates and 7 swirlies. With the couple mm of play in the lever, it does not work at all. Now with it tight, it works partially. Given gas the bike will still move.

3 stock springs and 2 Barnetts. Never had a clutch problem with any of my builds.

What am I doing wrong ?

[mraxl]

Start with the pressure plate.... is it fit with alignment marks as they should be?
Clutch release... is it 90 degrees or a little more at rest?

[kawonda750]

If I remember correctly, the early H1 clutch does not use the alignment marks. The release is at the correct angle as per the manual.

[mraxl]

kawatriple.com/partid/clutch/clbasket.htm

[kawonda750]

Thank you Dale. I stand corrected. I'll give it a try. I actually searched the resource site but did not see that page come up.
My apologies.

[mraxl]

Here is a procedure to follow for adjustment:

kawatriple.com/tunerwisdom/clutch_adjustment.htm

[kawonda750]

Thank you Dale Would the alignment make a big difference. I have it apart again and it was not correct. While I was at it , I measured the friction plate thickness and they are all above the 2.8 mm as stated in the service manual. 2.813 , 2.819 etc.

I don't want to assemble again to find that it still didn't work. Also, thanks for the adjustment steps.

[mraxl]

It's a step by step process.

Pressure plate alignment.

Clutch release positioning.

Proper release setting.

If any of the above is not correct it will create a problem.

I suspect the release setting is the biggest issue you need to focus on.

Tweek the screw in untill it hits and then back off 1/8 turn.

Use the parameters described in noted procedure.

The early clutch releases are prone to cracking. Be sure yours is ok and well lubricated.

[kawonda750]

Thanks Dale. I will report tomorrow when I do it. I am finding this unusual because , after probably 15 different clutches, this is the first problem I have had. I guess it has just been blind luck up to this point....

[H2 Dude]

The H1B clutch should be a n easy pull Dave. also check the worm gear next to the engine sprocket.Some times the plastic cracks.

[Walms]

May 2, 2022 12:36:38 GMT -5 kawonda750 said:

Thank you Dale Would the alignment make a big difference. I have it apart again and it was not correct. While I was at it , I measured the friction plate thickness and they are all above the 2.8 mm as stated in the service manual. 2.813 , 2.819 etc.

I don't want to assemble again to find that it still didn't work. Also, thanks for the adjustment steps.

One thing I'd check is if the steel plates are flat. A quick lap on a flat surface should let you know. Once I bought new steel plates, Vesrah I believe... I did the check and found they were conical and basically garbage, right out of the packaging.

[kawonda750]

This is a mystery. The steels are good and the fibres within spec. The pusher looks good. Hopefully the next re assembly turns out.