HELP Diagnose Knocking - Motor Mount?
Thread Starter
|
Cruiser
Joined: Jun 2013
Posts: 149
Likes: 1
From: Cleveland
HELP Diagnose Knocking - Motor Mount?
I have 2011 Street Glide with 103 motor w/ 16k miles on it. Stage one but otherwise stock regarding suspension/motor. Over the past few weeks I have noticed a weird knock in the bike frame. The best way I can describe it is it feels like someone is hitting the frame of the bike with a small hammer and I can feel it the most prominently in the highway pegs while at different speeds. Sometimes I feel it in the bars and faintly on footboards (as they are rubber isolated). Often times the knocking is similar in speed and occurrence to the rumble of the pipes.
I can rock the bike around on the front and rear brake and can't replicate it or feel any slack or movement in the suspension that shouldn't be there.
I noticed that the knocking seems to be most noticeable at specific speeds;
60 mph/ 30mph in 2nd gear..... and is the worst when at constant speed (not under load of acceleration or braking). Slight throttle increases can cause it to "knock" 1-2 times but not consistently.
The only thing I can think of at this point is a MOTOR MOUNT? I visually inspected the front mounts on my bike and don't see anything obvious although the left side front mount bolt is hidden behind the kick stand mount. Would a motor mount be a likely culprit? If so, which mount? The top front mount looks to be intact and no issues. Is there an easy way to diagnose it. I have to imagine that whatever it is, there is metal to metal contact from how it feels.
Any input would be very much appreciated.
Thanks in advance.
I can rock the bike around on the front and rear brake and can't replicate it or feel any slack or movement in the suspension that shouldn't be there.
I noticed that the knocking seems to be most noticeable at specific speeds;
60 mph/ 30mph in 2nd gear..... and is the worst when at constant speed (not under load of acceleration or braking). Slight throttle increases can cause it to "knock" 1-2 times but not consistently.
The only thing I can think of at this point is a MOTOR MOUNT? I visually inspected the front mounts on my bike and don't see anything obvious although the left side front mount bolt is hidden behind the kick stand mount. Would a motor mount be a likely culprit? If so, which mount? The top front mount looks to be intact and no issues. Is there an easy way to diagnose it. I have to imagine that whatever it is, there is metal to metal contact from how it feels.
Any input would be very much appreciated.
Thanks in advance.
Thread Starter
|
Cruiser
Joined: Jun 2013
Posts: 149
Likes: 1
From: Cleveland
I was thinking it felt like it could be at that bearing but I couldn't get any play out of it rocking the bike so I assumed it was fine. I'll grease it up and report back. Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
Stanger
Dyna Glide Models
59
Apr 11, 2009 10:31 AM
