RE: CT/CCT issue

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RE: CT/CCT issue

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RE: CT/CCT issue - 2/23/2007 1:02:55 AM

XXCBRChrisXX

Posts: 148
Joined: 2/20/2007
Status: offline

ummmm i have a noise right about at 1900 rpm as well but i think *hope* its valves kinda sounds clicky now

i did the ballancer ajustment tonight as well as did some glueing of various parts of the bike lol and looked at my airfilter for the first time

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one person and a hammer is good but its amazeing what two people with a hammer can do

(in reply to yas001)

Post #: 16

RE: CT/CCT issue - 2/23/2007 1:21:20 AM

yas001

Posts: 173
Joined: 9/5/2006
From: Capital of North Carolina, USA
Status: offline

I already tried balancer shaft adjustment, but still has that noise. I changed engine oil today, and it sounds like the noise has been reduced. I red some comments by Japanese CBR owners on the other site (sorry, in Japanese). They are talking about same issue. Maybe it is HONDA's fault.

(in reply to XXCBRChrisXX)

Post #: 17

RE: CT/CCT issue - 2/23/2007 3:44:05 AM

oacuna

Posts: 58
Joined: 12/24/2006
Status: offline

When running 10W40....mine sounded like a diesel engine when at idle. When running 20W50 full syn, the noise is reduced, but can still be heard if you listen for it.

(in reply to yas001)

Post #: 18

RE: CT/CCT issue - 2/23/2007 6:51:37 AM

collector

Posts: 469
Joined: 9/7/2006
From: Norwich UK
Status: offline

At low miles the cct should'nt be an issue. If your getting a clatter then look at adjusting the valve clearances... This may have been caused by previous owners reving the bike too hard when cold. The ballancer should only be adjusted when the bike is cold and follow the manual's guide. When I had a similar sound as a last resort I tried diesel to flush the engine and this can be found on a prievous thread, but mine had done 70,000 miles and the problem was cured. I dont think that you need to go to that stage. Try your valves first and see where that gets you......Good luck

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THE LITTLE VOICE IN THE BACK OF MY HEAD IS GONNA GET ME HURT

(in reply to oacuna)

Post #: 19

RE: CT/CCT issue - 2/23/2007 11:00:33 PM

XXCBRChrisXX

Posts: 148
Joined: 2/20/2007
Status: offline

hey how long till valves need to be replaced? at what point might you of worn the valves to the point where you might suck one through? if this has ever happened.....probly not but ehhh

_____________________________

one person and a hammer is good but its amazeing what two people with a hammer can do

(in reply to collector)

Post #: 20

RE: CT/CCT issue - 2/24/2007 8:24:15 AM

malbojah

Posts: 380
Joined: 3/10/2006
From: Cape Cod, MA
Status: offline

This many miles with no valve issues
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I''ll fix the HOW TO''s once the forums are fixed

HOW TO: Valve Adjustment

HOW TO: Plastic Speedo Gear Replacement

HOW TO: Clutch Replacement (PICTURE INTENSE)
http://www.cbrforum.com/m_266491/mpage_1/key_/tm.htm#266491

(in reply to XXCBRChrisXX)

Post #: 21

RE: CT/CCT issue - 2/24/2007 1:22:08 PM

collector

Posts: 469
Joined: 9/7/2006
From: Norwich UK
Status: offline

Your valves should last you well over 100,000 if the bike is serviced regualy. The only other times that they may need replaceing is if one breaks or you bounce one. At every major service you should check the valve clearances and adjust accordingly. When you put new valves into the head the you need to have them seated, this is normally done by an engineer and ensurs a perfect fit, and prevents them slapping against the piston. Nightmare scenario........