Friction Zone/Clutch Adjustment Question - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 19 (permalink) Old 09-13-2017, 11:48 AM Thread Starter
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Friction Zone/Clutch Adjustment Question

So I took the basic rider course this past weekend on Kawasaki 125cc little cruiser bike. I noticed a huge difference in the friction zone versus my Vulcan 750 (with trike kit attached).

The little bike started to move once I release the clutch about an inch and a half, which is great. But my own Vulcan doesn't start to roll until I've nearly released the clutch all the way. I find it difficult to get rolling without being in danger of stalling. Regardless of the amount of throttle I give it. I am sure that this is due to the added weight of the trike kit which makes the load heavier. But could it also be corrected by an adjustment to the clutch? I still know very little about this and thought I would ask for possible solutions. It's tough having a friction zone that feels like it's just a few centimeters.

Thanks in advance.
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post #2 of 19 (permalink) Old 09-13-2017, 11:58 AM
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How much free play does your clutch lever have now? If there happens to be no free play, loosening it should let the clutch grab sooner.

Could be the difference in the amount of wear between the two bikes.

Just saw that your backrest is out for delivery today. That was kinda quick.

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post #3 of 19 (permalink) Old 09-13-2017, 12:38 PM Thread Starter
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I'm not exactly sure what free play is. But yeah, hopefully it's something I can adjust so the clutch will grab sooner. I feel like it doesn't grab until very late.

And thank you!!!!
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post #4 of 19 (permalink) Old 09-13-2017, 12:46 PM Thread Starter
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Ok i just wateched a video and now I know what free play is. I will have to take a look later on tonight. =)
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post #5 of 19 (permalink) Old 09-13-2017, 01:43 PM
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Quote:
Originally Posted by boogiepop35 View Post
I'm not exactly sure what free play is. But yeah, hopefully it's something I can adjust so the clutch will grab sooner. I feel like it doesn't grab until very late.

And thank you!!!!
When a clutch is properly adjusted (right amount of free play), late engagement is usually due to wear. Same with a car, clutch grabbing way at the top indicates a lot of wear.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #6 of 19 (permalink) Old 09-13-2017, 04:24 PM Thread Starter
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The bike only has around 4300 miles so hopefully it's not worn out. We will see! It's probably just in need of an adjustment I hope hope.

Quote:
Originally Posted by Spockster View Post
When a clutch is properly adjusted (right amount of free play), late engagement is usually due to wear. Same with a car, clutch grabbing way at the top indicates a lot of wear.
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post #7 of 19 (permalink) Old 09-13-2017, 08:23 PM
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mine has original clutch, 43k on it, and it has always grabbed at the last 1/3 of the motion.

the design of the clutch provides over 3/8" of gap in the plate stack at full pull on the lever. they could have easily designed it to provide around 3/16 of gap, would make the clutch much more 'linear'.

2005 VN750

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post #8 of 19 (permalink) Old 09-13-2017, 10:56 PM Thread Starter
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So I looked at it and in my opinion it seems like there's zero free play. It's immediately grabbing once you start to pull on the clutch.

Quote:
Originally Posted by Spockster View Post
How much free play does your clutch lever have now? If there happens to be no free play, loosening it should let the clutch grab sooner.

Could be the difference in the amount of wear between the two bikes.

Just saw that your backrest is out for delivery today. That was kinda quick.
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post #9 of 19 (permalink) Old 09-13-2017, 10:56 PM
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Mine might grab by halfway, but I would need to ride it to be sure. It is out there a bit because with the wrong gloves, it slipped out of my fingers taking off at a light. Had the front wheel about 2' high.

I cut the fingers out of those gloves. Mechanix gloves with some sort of soft leather/suede on the fingers. Not good. Of course I had just put wide levers on, nice slick chrome.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #10 of 19 (permalink) Old 09-14-2017, 11:47 AM Thread Starter
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How do I adjust the clutch to give it a little more free play?
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