Technical Discussion Topics related to Technical Issues

Down On Power - CCT Issue?

Thread Tools
 
Search this Thread
 
Old May 10, 2017 | 08:01 AM
  #1  
RonVTR's Avatar
Thread Starter
Senior Member
Back Marker
 
Joined: Dec 2004
Posts: 226
From: Olympia, WA
RonVTR
Down On Power - CCT Issue?

Hi, I searched and read many CCT related articles on this forum however didn't find anything that specifically referenced my symptoms... Maybe someone here can confirm if this is a CCT related issue?

While down shifting through the gears - The Superhawk's Stain-tunes sound so good doing this - I felt a little 'hick up'. After that moment, it was noticeably down on power. It starts and runs but feels more like a 750cc VTR. After failing to find anything wrong, I decided to take it into the dealer.

Dealer did a compression test and leak down test. Here are the results:
Leak Down: F = 15%, R = 20%
Compression: F = 115, R = 120

My VTR is a 1998 with 32,000 miles. It has the original CCTs.

Thanks
Ron
Old May 10, 2017 | 09:15 AM
  #2  
Wicky's Avatar
Senior Member
SuperBike
 
Joined: Sep 2008
Posts: 1,707
From: Essex, UK
Wicky is on a distinguished road
airfilter? hoses esp vacuum firmly in the right place with no holes/spilts? - same for the petcock diaphragm. Carbs need cleaning - gummed up? old fuel?

Plugs?, plug caps firmly on?

It has the original CCTs.


CCT failure is binary - either they work or they don't - with the bike producing the sound of a cement mixer full of metalic junk...

Last edited by Wicky; May 10, 2017 at 09:19 AM.
Old May 10, 2017 | 09:34 AM
  #3  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,213
From: Gettysburg, Pa
Wolverine is on a distinguished road
Are you mechanically inclined enough to pull the cam covers and check timing?

This is the next step I'd take.

Last edited by Wolverine; May 10, 2017 at 09:37 AM.
Old May 11, 2017 | 07:38 AM
  #4  
RonVTR's Avatar
Thread Starter
Senior Member
Back Marker
 
Joined: Dec 2004
Posts: 226
From: Olympia, WA
RonVTR
Just an update... I asked the dealer to check engine timing yesterday.
Old May 11, 2017 | 03:08 PM
  #5  
Wolverine's Avatar
Moderator
MotoGP
 
Joined: Jul 2007
Posts: 5,213
From: Gettysburg, Pa
Wolverine is on a distinguished road
Get them some manual cct's and never worry about it again! You're on borrowed time.

Last edited by Wolverine; May 11, 2017 at 03:10 PM.
Old May 13, 2017 | 08:16 AM
  #6  
xeris's Avatar
Senior Member
SuperBike
 
Joined: Sep 2010
Posts: 1,987
From: Bisbee, AZ
xeris is on a distinguished road
Originally Posted by RonVTR
Just an update... I asked the dealer to check engine timing yesterday.
There are good mechanics and not so good mechanics. I hope your luck falls to the former.
Let "borrowed time" guide you decisions.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
chemomche
Technical Discussion
8
Nov 13, 2012 12:26 AM
jdobeckj
Technical Discussion
10
Apr 5, 2012 07:44 PM
superman_006
Technical Discussion
25
Mar 1, 2010 07:52 AM
radbikers
Technical Discussion
13
Feb 23, 2008 05:02 PM
BiggDaddyKool
Technical Discussion
29
Jun 7, 2007 03:52 PM




All times are GMT -7. The time now is 12:10 AM.