44k and needs a clutch - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 17 (permalink) Old 11-07-2015, 06:40 PM Thread Starter
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44k and needs a clutch

its not gone but just starting to slip under heavy load. already replaced the cable just to eliminate that first. I know theres a few threads on clutches and i have looked at them. is it worth going to kevlar or carbon fiber discs? i dont plan on running any exotic oil but i do ride hard. most shifts are in the 7500 to 8500 rpm range. really need pros and cons

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post #2 of 17 (permalink) Old 11-07-2015, 08:17 PM
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Try moving the clutch arm on the motor 1 spline.might last a little longer ,gives ya some more adjustment

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post #3 of 17 (permalink) Old 11-07-2015, 09:24 PM
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Kevlar clutch with regular motorcycle oil. Get a kit with "heavy duty" springs.
Wet sand the metal plates or replace them too.

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post #4 of 17 (permalink) Old 11-07-2015, 09:50 PM Thread Starter
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amazon is showing a ebc kevlar kit with springs and steels for $136. ill invest in getting the tools just so i have them. probably drill the hub while im at it. did the 700 have the coffee grinder problem? i never had a issue until now.

85 700
V&H Cruzers
coastered&shaved
uni filters
coil mod
KC's led turn signal boards
clear alternatives led tail light
Wolfies forward controls
vn900 seat
AGM Battery
Iridium plugs
willie and max bags
plexifairing 3
14 inch apes

97 75
parts bike for now

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post #5 of 17 (permalink) Old 11-07-2015, 09:57 PM
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Quote:
Originally Posted by goofin View Post
amazon is showing a ebc kevlar kit with springs and steels for $136. ill invest in getting the tools just so i have them. probably drill the hub while im at it. did the 700 have the coffee grinder problem? i never had a issue until now.
That's the set I'll be grabbing.

700 is the same design, so I'd imagine it had the issue? My 86 750 sure does, hah.

1986 Kawasaki Vulcan 750
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Coastered & Shaved
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post #6 of 17 (permalink) Old 11-08-2015, 04:18 AM
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I just replaced the stock friction discs. The metal discs were fine, and the springs were fine lengthwise. Not sure how I feel about heavy duty springs for street use. They make the clutch lever harder to pull, and put more stress on the clutch cable, lever pivot, The part that attaches to the bevel gear case, the actuating rod, and possibly other parts. More stress usually means faster wear. But, I tend to shift around 4000 rpm. I consider the Vulcan 750 a cruiser/touring bike, not a sport bike. 8500 rpm seems awfully high for a v-twin. In fact that is redline.

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post #7 of 17 (permalink) Old 11-08-2015, 12:29 PM
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Quote:
Originally Posted by VN750Rider/Jerry View Post
I just replaced the stock friction discs. The metal discs were fine, and the springs were fine lengthwise. Not sure how I feel about heavy duty springs for street use. They make the clutch lever harder to pull, and put more stress on the clutch cable, lever pivot, The part that attaches to the bevel gear case, the actuating rod, and possibly other parts. More stress usually means faster wear. But, I tend to shift around 4000 rpm. I consider the Vulcan 750 a cruiser/touring bike, not a sport bike. 8500 rpm seems awfully high for a v-twin. In fact that is redline.
Man you're shifting before the motor makes any power.these bikes are made to rev.

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rejetted for K/N Pods part#rc 2340
sportster seat

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post #8 of 17 (permalink) Old 11-08-2015, 12:39 PM
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I put in the heavy duty springs, and didn't notice the clutch pull being any harder. I believe the "heavy duty" part is just that the springs use a better wire and are less prone to fatigue. You can see a photo of the two springs here:
https://flic.kr/p/3gEKUe

The "heavy duty" springs are a tad longer and thus have a bit more preload... But you'll notice they don't have more winds than the stock.

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Last edited by Knifemaker; 11-08-2015 at 12:43 PM.
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post #9 of 17 (permalink) Old 11-08-2015, 01:13 PM
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Quote:
Originally Posted by goofin View Post
amazon is showing a ebc kevlar kit with springs and steels for $136. ill invest in getting the tools just so i have them. probably drill the hub while im at it. did the 700 have the coffee grinder problem? i never had a issue until now.
Mine didn't have the coffee grinder issue till I put the clutch plates from my 86 into my 85.if I recall Wolfie's don't have the coffee grinder issue either

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Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #10 of 17 (permalink) Old 11-08-2015, 01:32 PM
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Quote:
Originally Posted by OleDirtyDoc View Post
Mine didn't have the coffee grinder issue till I put the clutch plates from my 86 into my 85.if I recall Wolfie's don't have the coffee grinder issue either
I wonder if they changed the composition of the clutch plates from 85 to 86?

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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