F4i - Main Forum Main F4i discussion board

valves knocking.

Thread Tools
 
Search this Thread
 
  #1  
Old 05-06-2008, 09:56 AM
dienasty13's Avatar
Thread Starter
Join Date: May 2007
Location:
Posts: 82
Likes: 0
Received 0 Likes on 0 Posts
Default valves knocking.

sounds like i could use a Valve Adjustment, because the bike is very radily sounding when reved at about 4-5 grand. I was planning on taking it apart and doing it myself, but wanted to wait till winter you think the bike will be fine or should i just take the time and do it now? Any advice for when i do change them out?
 
  #2  
Old 05-06-2008, 10:38 AM
Join Date: Apr 2008
Location:
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

how many miles do you have? chances are youre mistaken it with the CCT-L...
 
  #3  
Old 05-06-2008, 10:55 AM
Join Date: Jul 2006
Location:
Posts: 444
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

+1 on CCT Would almost bet money on it. Do a search and see if disciptions match your symptoms.
 
  #4  
Old 05-06-2008, 10:56 AM
dienasty13's Avatar
Thread Starter
Join Date: May 2007
Location:
Posts: 82
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

i have almost 30,000 on the bike im sure its not the CCT-L the actual engine is knocking sounds like a bolt is loose in the engine no back fire or metal chips fireing out the exhaust yet...
 
  #5  
Old 05-06-2008, 11:07 AM
StreetPower's Avatar
Senior Member
Join Date: Dec 2007
Location: Ukraine
Posts: 367
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

it's the cct sound, believe me, does the sound disappear about 6k rpm?
 
  #6  
Old 05-06-2008, 11:11 AM
Join Date: Jul 2006
Location:
Posts: 444
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

If it's knocking that bad Wouldn't you here it through all range of RPM's. Does it sound like it's coming from right under the gas tank, on both sides?
 
  #7  
Old 05-06-2008, 11:13 AM
dienasty13's Avatar
Thread Starter
Join Date: May 2007
Location:
Posts: 82
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

yeah it does. I thought the CCT sounded like a constant wrenching noise when the bike is coasting. Why would the CCT make such a rough noise? Is it really that big of a part maybe someone could elaborate for me? I was for sure the engine was knocking. Oh well thanks i guess...
 
  #8  
Old 05-06-2008, 01:22 PM
Join Date: Nov 2006
Location:
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

Here's a thread that may help you when the time comes around. It shows step-by-step on a 600RR, but should be the same thing for almost all CBR's:

http://cbrworld.net/forums/thread/248256.aspx
 
  #9  
Old 05-06-2008, 01:57 PM
dienasty13's Avatar
Thread Starter
Join Date: May 2007
Location:
Posts: 82
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

hey bro thanks! that helps visually alot!
 
  #10  
Old 05-06-2008, 04:01 PM
Join Date: Apr 2008
Location:
Posts: 180
Likes: 0
Received 0 Likes on 0 Posts
Default RE: valves knocking.

if you want a writeup on the F4i specifically:

http://www.bayarearidersforum.com/fo...threadid=85499

see, im telling you guys we need the stickies and FAQs i linked
 


Quick Reply: valves knocking.



All times are GMT -5. The time now is 07:58 AM.