Strange wizzing noise

L

LoyalKhan664_imp

First service completed
Thread starter
Hi. I’m new here and I wanted to ask you guys a question. I’ve got an CB1100RS and I noticed a strange whizzing high pitched noise coming from the left hand side of the engine. I can hear it clearer if I spread the left leg. Did you guys notice it? Could it be the starter? Thanks
 
Or the alternator. Starter only makes a noise when its, you know, starting ;)

Welcome to the Forum!
 
LK644, now days you should keep legs tight together, 0.02 :P

Now seriously, can you submit a short video/sound clip?, so these members with good hearing can help you.
:beerchug:
 
Thread starter
Thanks for the replies. It sounds like a dry gear or bearing. I’ll record a video. The leg seems to block the noise, You can only hear it when you move your leg out of the way.
 
Welcome to the forum, LK.
 
LoyalKhan664_imp said:
Hi. I’m new here and I wanted to ask you guys a question. I’ve got an CB1100RS and I noticed a strange whizzing high pitched noise coming from the left hand side of the engine. I can hear it clearer if I spread the left leg. Did you guys notice it? Could it be the starter? Thanks
Click to expand...
Hi, this may sound weird, but riding my 2013 CB home today after getting it inspected, I heard, for the first time, a high pitch, whizzing noise that seemed to be coming from the front of the engine. I have never heard it before, or on my 2017 EX. Going to ride it on Friday to see if I can pin-point where it is coming from.
 
Although the adjustment is on the right LK, maybe the gear lash adjuster needs attention.

Or maybe the cam chain tensioner? A member had problems with that, but I can't remember the sound it made.

I just noticed this should really be in the Mechanical section of the forum. A lot of members don't really look here and it would get a better response there.
 
Thread starter
michael1954_imp said:
LoyalKhan664_imp said:
Hi. I’m new here and I wanted to ask you guys a question. I’ve got an CB1100RS and I noticed a strange whizzing high pitched noise coming from the left hand side of the engine. I can hear it clearer if I spread the left leg. Did you guys notice it? Could it be the starter? Thanks
Click to expand...
Hi, this may sound weird, but riding my 2013 CB home today after getting it inspected, I heard, for the first time, a high pitch, whizzing noise that seemed to be coming from the front of the engine. I have never heard it before, or on my 2017 EX. Going to ride it on Friday to see if I can pin-point where it is coming from.
Click to expand...
Hi, this may sound weird, but riding my 2013 CB home today after getting it inspected, I heard, for the first time, a high pitch, whizzing noise that seemed to be coming from the front of the engine. I have never heard it before, or on my 2017 EX. Going to ride it on Friday to see if I can pin-point where it is coming from.
I’ll put it on the centre stant today to try and replicate it. It’s like a metallic ball in a can you shake and as you rev it the frequency of the noise intensifies until it becomes a whizzing noise. I noticed at low rpm eg. 1200 you can notice the pause in between the rattles. Very weird. Maybe it’s meant to be there, my bike is under a year old.
 
Thread starter
So I tried to replicate it today on the stand but no success. It only does it when accelerating under load which leads me to think it might be a bearing. I’ll take it to the shop. Thanks for the advice guys!
 
I think one member had a loose driving sprocket's bolt behind L/side cover ??
If so, it may not sound like a bearing, as you suggested, but it may be more noisy under a real load, when ridden, not on the center stand when being span without a load....
 
Thread starter
peterbaron_imp said:
I think one member had a loose driving sprocket's bolt behind L/side cover ??
If so, it may not sound like a bearing, as you suggested, but it may be more noisy under a real load, when ridden, not on the center stand when being span without a load....
Click to expand...
I can take the cover off and check it out. Thanks!
 
Me. It was me that had the loose bolt. Blasted thing came right out and punched a hole in the cover.
 
Nothing a little JB Weld won’t take care of :P

Or a new inspection window :D
 
IIRC Cormanus had the cover replaced. Its posted somewhere on the board.
 
You must log in or register to reply here.

Similar threads

Gone in 60
Always start with the last thing you did
Replies
7
Views
143
Gone in 60
Gone in 60
E11even_Hunnit
Had an unexpected 3some the other night. Urgent relationship advice needed!!
2
Replies
20
Views
470
Pete in PA
Pete in PA
rdprdp01
My Top 10 Motorcycle Safety Practices--Please Share Yours
Replies
5
Views
526
Gone in 60
Gone in 60
F
Bartubeless and Bridgestone T32
Replies
0
Views
266
franov_imp
F
M
Valve noise (i think)
Replies
6
Views
765
1973cb750
1973cb750
Back
Top