Modifications - Performance Discuss aftermarket and DIY performance modifications

Once Just Recntly In A Basement Close By...

Old 06-29-2018, 11:47 AM
  #1  
Senior Member
Superstock
Thread Starter
 
Fastguy59's Avatar
 
Join Date: Nov 2014
Location: Middletown, CT
Posts: 408
Fastguy59 is on a distinguished road
Once Just Recntly In A Basement Close By...

Once-upon-a-time I embarked on a quest, to teach my girl Sonya better manners and rid of her of an embarrassing, grabby, squealing, honking clutch engagement issue.After my successful test ride on Tuesday, I have to say that all the work I put into her has paid off in spades. Abundance of joy!The clutch know disengages very easily and twice as quick, allowing for nice clean 1 - 2 shifts.
The clutch engagement point is smoother and wider making fast get-away-launches, a smooth, squeal, honk and chatter free affair.The clutch lever pull is a tiny bit stiffer; say 8-10%, but nothing my 66 y.o. hands can’t repeatedly handle without dissent. The unfortunate part of the experiment is I really can’t point a finger at any one or two parts and say, “this solved my issues!”. I changed quite number of parts, as I do not like opening up a patient repeatedly…. Here is what I changed:1. The OEM outer clutch guide from a ’98 to a ‘05, this part is a superseded part number from the ’98 number. Number 3 on the clutch fiche.
2. The OEM clutch push rod from a ’98 to a ‘05, this part is a superseded part number from the ’98 number. Number 12 on the clutch fiche.
3. The OEM Judder Spring. Number 7 on the clutch fiche. Just cause I was in there.
4. The OEM Judder Spring seat. Number 8 on the clutch fiche. Just cause I was in there.
5. The OEM clutch was replaced with a complete EBC SRK clutch kit, friction/steels/springs. Presoaked for 5 days in Redline Full Synthetic 10W-40 Oil. This was sourced from a wonderful vendor, Racecrafters in California. I did notice that the steels in this kit have a pin planished finish as opposed to the OEM steels finish.
6. The rebuilt OEM clutch slave was replaced with an Oberon Racing (UK) billet clutch slave. This was sourced from the North American Oberon dealer in Canada, via eBay.
7. I also installed a Factory Pro shift kit; this really made a huge difference in how fast shifts are completed and a decrease in lever effort to shift the bike. Sonya shifts much more positively now, so it was worth every penny. This too was sourced from Racecrafters in California.I want to give a huge shout out and props to “The Texan VTR Whisperer” and a very valued friend, Erik Marquez from Marquez Racing in Kempner, Texas, for answering my questions and supporting the successful changeover. Sonya and Bobby, left the line super quickly, shifted, and wheelied with ease and rode happily ever after.

The End.
LikeShow more reactions
Comment
Fastguy59 is offline  
Old 07-15-2018, 08:06 AM
  #2  
Senior Member
Superstock
Thread Starter
 
Fastguy59's Avatar
 
Join Date: Nov 2014
Location: Middletown, CT
Posts: 408
Fastguy59 is on a distinguished road
Update on my clutch mods

So after riding Sonya with her new clutch mods for about 850 miles here is the update.
the lever feel is indeed stiffer, but I am acclimated to it now. so no biggie.

Still no chatter on 2.5k rpm fast launches.

She will now leave from a stop uphill in second with zero chatter or protest.

She will leave from a stop on level ground in third with zero chatter or protest.

She is much easier to ride at low speeds, i.e. parking lots etc due to the very wide engagement window on the new mods.

so all-in-all very happy!
Fastguy59 is offline  
Old 07-15-2018, 08:21 AM
  #3  
Senior Member
Superstock
Thread Starter
 
Fastguy59's Avatar
 
Join Date: Nov 2014
Location: Middletown, CT
Posts: 408
Fastguy59 is on a distinguished road
Fastguy59 is offline  
Old 07-15-2018, 03:53 PM
  #4  
Moderator
MotoGP
 
Wolverine's Avatar
 
Join Date: Jul 2007
Location: Gettysburg, Pa
Posts: 4,446
Wolverine is on a distinguished road
Question

Just curious, why do you want to leave stops in 3rd gear?
Wolverine is offline  
Old 07-16-2018, 10:42 AM
  #5  
Moderator
MotoGP
 
E.Marquez's Avatar
 
Join Date: Apr 2006
Location: Kempner, TX
Posts: 4,173
E.Marquez is on a distinguished road
Originally Posted by Wolverine View Post
Just curious, why do you want to leave stops in 3rd gear?
I read it somewhat differently.. Its an observation depicting how much less finicky and chatter the new clutch system is, not an edorsment or recommendation that its something to be done.
E.Marquez is offline  
Old 07-16-2018, 12:15 PM
  #6  
Moderator
MotoGP
 
Wolverine's Avatar
 
Join Date: Jul 2007
Location: Gettysburg, Pa
Posts: 4,446
Wolverine is on a distinguished road
Thumbs up

Ah, ok.
My bet is it's the added amount of slip from the full syn used for break in. Makes it nice and smoooth.
Wolverine is offline  
Old 07-16-2018, 01:45 PM
  #7  
Thread Killer
SuperBike
 
Join Date: Apr 2013
Location: Geneseo, IL
Posts: 1,607
VTR1000F is on a distinguished road
Here we go.
VTR1000F is offline  
Old 07-17-2018, 06:40 AM
  #8  
Moderator
MotoGP
 
E.Marquez's Avatar
 
Join Date: Apr 2006
Location: Kempner, TX
Posts: 4,173
E.Marquez is on a distinguished road
Originally Posted by VTR1000F View Post
Here we go.
Not every clutch disk manufacture warns off using Full synesthetic oil, but some do. EBC does on SOME of their clutch disks types, and just does not mention it at all with others types they sell..
Modern Triumphs come from the factory with Castrol Power 1 full synthetic oil , service manual covering new clutch installs specs that same oil and no special pre soak or break in oil.
Every modern Ducati (Yes the wet clutch motors as well...lol) comes with Shell Advance full synthetic oil, service manual covering new clutch installs specs that same oil and no special pre soak or break in oil
Other bike brands and models do as well.

End of the day, I think its a single issue for SOME clutch disk types being improperly applied to all mistakenly.
E.Marquez is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
slapi01
Technical Discussion
3
05-16-2010 04:15 PM
truepath
Classifieds
0
03-29-2008 06:30 AM
radbikers
General Discussion
11
02-15-2008 01:24 PM
Cleveland
Everything Else
10
06-12-2007 01:43 PM
selztoad
Classifieds
7
02-15-2007 10:14 AM


Thread Tools
Search this Thread
Quick Reply: Once Just Recntly In A Basement Close By...


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

All times are GMT -7. The time now is 09:53 PM.


© 2019 MH Sub I, LLC dba Internet Brands