A strange sound when releasing clutch - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Transmission / Rear End
\ Chattering Clutch? Transmission Trouble?
Rear End Woes? Splines Shot? Discuss it here!

 1Likes
  • 1 Post By DeDHaze
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 06-10-2019, 05:10 AM Thread Starter
Senior Member
 
Join Date: Dec 2018
Location: Netherlands, Utrecht
Posts: 104
iTrader: (0)
 
A strange sound when releasing clutch

Alright so this problem started about a year ago when my motorcycle was out for about 3 days in the rain. (although i dont think it has anything to do with it).
Almost every time (not always) whenever I want to start driving and release my clutch to get the first bit of momentum its as if my bike is being stuck for a bit and i hear a notacable sound coming from below me as if something is causing friction. Is it possible that this is the transmission? Once its in gear there are no further notacable problems and everything is fine.

I put this thread in the Transmion/Rear end cus i think it has something to do with it.

Can u guys help me out?
Panarock is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 06-10-2019, 05:25 AM
Junior Member
 
DeDHaze's Avatar
 
Join Date: May 2019
Posts: 2
iTrader: (0)
 
Does it mostly happen when the engine is cool? I'm pretty new to the VN750 in general, but I have (I think) a similar sound in mine. From what I've read about it, its what I've seen referred to as the "coffee grinder" noise, which is caused by oil pooling in the clutch basket when cold, creating alternating wet/dry spots on the plates. This causes the clutch to essentially slip-grab-slip-grab until fluid is distributed evenly.

Look in the Vulcan Verses for info on drilling the clutch basket. It seems to be relatively easy. There is also a lot of info in there to help determine if this is even what you're experiencing in the first place.
ubertalldude likes this.
DeDHaze is offline  
post #3 of 5 (permalink) Old 06-10-2019, 09:03 AM Thread Starter
Senior Member
 
Join Date: Dec 2018
Location: Netherlands, Utrecht
Posts: 104
iTrader: (0)
 
It does it mostly when cold yes. Ill look into it. But i prefer not to drill holes into the mechanics though i dont trust myself with it.
Panarock is offline  
 
post #4 of 5 (permalink) Old 06-10-2019, 10:08 AM
Senior Member
 
Join Date: Jan 2019
Location: Philadelphia
Posts: 122
iTrader: (0)
 
I got that after a recent oil change, it goes away after the first couple of take offs from a stop when it’s not fully warmed up. Now because it’s getting warm out it doesn’t do it at all. From what I understand it’s not hurting anything. Just be aware of it, pull the clutch lever a few times before taking off and be careful when putting it into gear because the grinding noise is just more friction and gives the clutch a little more bite, the bike can jerk pretty hard. One guy on here said it cause him to drop the bike.
mmart is online now  
post #5 of 5 (permalink) Old 06-10-2019, 12:49 PM
Senior Member
 
ubertalldude's Avatar
 
Join Date: Jun 2016
Location: NE Florida
Posts: 656
iTrader: (0)
 
Couple things you can do to help it without modifying the engine:

1 - Let the bike warm up more before taking off
2 - While the bike is warming/warmed up, grab the clutch and let it go 15-20+ times while in neutral
3 - slightly slip the clutch on the first few startups and/or while standing still before first taking off

2 is the most effective I've found. Just squeeze and let go in neutral, this seems to let the oil get to all the clutch plates and stops the jerky engagement and noise

The noise is not harmful, just annoying. Hope these tips help

Earshave+Rejet (38/135) NGK Iridiums MCCT Conversion Slipstreamer S03 Windshield Custom Extended Backrest Custom Highway Bars MOSFET R/R LED Underglow Volt+USB In-Dash Two-Wire & Blue-Wire Mod Satin Black Engine Paint Dampers Parts - Jets: Main=99101-393(#132 stock)/Pilot=n424-22 Pilot(#38 stock)
ubertalldude is online now  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome