(new bike) knocking noise on cold start - 600RR.net
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

 
LinkBack Thread Tools
post #1 of 11 (permalink) Old 09-02-2014, 03:07 AM Thread Starter
Training Wheel Hero
 
Join Date: Sep 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
(new bike) knocking noise on cold start

Hi All,

bought a new cbr600rr coupla weeks ago and noticed some weird noise from the
engine on cold starts. The noise gradually disappears after engine runs for
half a minute or so. Here's the youtube vid



I've also noticed the tank cover vibrates quite noticeably at around 6K rpm.
Maybe the two things are related somehow or is it normal for this bike?
In the latter case I appologise for wasting your time.

cheers

A
Ahab is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 09-02-2014, 06:24 AM
World Superbike Racer
 
Miweber929's Avatar
 
Join Date: Mar 2013
Location: Woodbury, MN
Posts: 1,963
Thanks: 203
Thanked 565 Times in 446 Posts
Feedback Score: 1 reviews
Sounds normal to me but its hard to hear for sure.

Mike
Miweber929 is offline  
post #3 of 11 (permalink) Old 09-02-2014, 07:53 AM
AMA Supersport Racer
 
YG27's Avatar
 
Join Date: Jun 2013
Location: TX
Posts: 718
Thanks: 29
Thanked 62 Times in 55 Posts
Feedback Score: 0 reviews
If it's brand new then take it to the shop you bought it from instead of getting second hand info over the internet.. We can only tell so much over a video. Where as they have actual mechanics and your bike should hopefully be on warranty.

2A7X3. Aircraft Structural Maintenance.

Any corrosion (Paint, priming, identification, etc) or Fabrication (Sheetmetal, Fiberglass, Tubing, etc)
questions, go ahead and ask and I'll do the best to respond to the best of my knowledge.

Current : '08 CBR1000RR 20160213
Wrecked: '05 CBR600RR 20151221 RIP

Crashes: 2 minor low speed lowsides, 1 50MPH impact.
Injuries: 0 Broken bones, possible tear in shoulder.
YG27 is offline  
 
post #4 of 11 (permalink) Old 09-02-2014, 08:08 AM Thread Starter
Training Wheel Hero
 
Join Date: Sep 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by YG27 View Post
If it's brand new then take it to the shop you bought it from instead of getting second hand info over the internet.. We can only tell so much over a video. Where as they have actual mechanics and your bike should hopefully be on warranty.
done that. Mechanic said come back for the first service and hopefully the noise
will go away. I don't see any signs of it going away :(
Im just wondering what to do if they say they're like that...
Ahab is offline  
post #5 of 11 (permalink) Old 09-02-2014, 08:47 AM
AMA Supersport Racer
 
YG27's Avatar
 
Join Date: Jun 2013
Location: TX
Posts: 718
Thanks: 29
Thanked 62 Times in 55 Posts
Feedback Score: 0 reviews
Test ride one at a different shop so you can put up an argument.


Sent from Motorcycle.com Free App

2A7X3. Aircraft Structural Maintenance.

Any corrosion (Paint, priming, identification, etc) or Fabrication (Sheetmetal, Fiberglass, Tubing, etc)
questions, go ahead and ask and I'll do the best to respond to the best of my knowledge.

Current : '08 CBR1000RR 20160213
Wrecked: '05 CBR600RR 20151221 RIP

Crashes: 2 minor low speed lowsides, 1 50MPH impact.
Injuries: 0 Broken bones, possible tear in shoulder.
YG27 is offline  
post #6 of 11 (permalink) Old 09-03-2014, 01:14 AM Thread Starter
Training Wheel Hero
 
Join Date: Sep 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
There's another vid on youtube with a bike that has a similar issue
Ahab is offline  
post #7 of 11 (permalink) Old 09-04-2014, 07:03 AM
Training Wheel Hero
 
Join Date: Aug 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
does the knocking sound change if you rev it higher? does it occur even after you ride the bike and leave it 2-3 hours to cool down a bit?
brian978 is offline  
post #8 of 11 (permalink) Old 09-08-2014, 08:47 AM Thread Starter
Training Wheel Hero
 
Join Date: Sep 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by brian978 View Post
does the knocking sound change if you rev it higher? does it occur even after you ride the bike and leave it 2-3 hours to cool down a bit?
I don't notice any difference when revving it a bit. Today started it after it sat for about 2hrs in the garage, the temp on the dash was +38. I couldn't hear any knocking noise, it was more of a rustle.
Ahab is offline  
post #9 of 11 (permalink) Old 09-08-2014, 12:11 PM
Training Wheel Hero
 
Eric361's Avatar
 
Join Date: Sep 2014
Location: Phoenix
Posts: 49
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
I have a new 2014 it doesn't make that noise. Sounds like it could be an improperly shimmed valve bucket. A dealer saying lets see if it goes away sounds like bull **** to me. If it is under warranty make them fix it.
Eric361 is offline  
post #10 of 11 (permalink) Old 10-03-2014, 06:14 AM Thread Starter
Training Wheel Hero
 
Join Date: Sep 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
(update) I handed the bike to the dealer today. Before taking it apart they said they talked with someone from honda who said the issue is known and due to oil getting to some bearing later. It's allegedly described in service bulletin # SBMC 9606. I couldn't find this anywhere on the internet. They said there's no reason to do anything with it...
just wondering if I should relax now or press them on.
Ahab is offline  
post #11 of 11 (permalink) Old 10-03-2014, 09:04 AM
Knee Dragger
 
VoltaicShock's Avatar
 
Join Date: Sep 2014
Posts: 155
Images: 1
Thanks: 104
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
Try another shop. If it's under warranty another shop should still do the work.

Sometimes you just have to keep pressing them. You could also call Honda and complain. Not sure I would personally do this but some people turn to social media. That seems to get the attention of companies today.
VoltaicShock is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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



Posting Rules  
You may not post new threads
You may not 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