slight wobble around 70mph?
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Tourer
Joined: Jul 2016
Posts: 357
Likes: 39
From: illinois
slight wobble around 70mph?
hey all!
2008 EG is the bike
last night a friend and I was out riding we was on the highway and noticed a slight wobble around 65-70mph, not horrible or any thing but just enough to notice and make me a "little" uncomfortable so like look into this
i just put new tires, swapped to spoke wheels but had them trued, new wheel bearings also about 300 miles ago really dont ride on the highway much so cant say if this was happening before? new tires made the bike feel so much better smoother ride better in the curves was really happy until last night
bike has 22k on it, thinking to replace front engine mount and rear swing arm bushing just because is an 08
what should i be checking?
2008 EG is the bike
last night a friend and I was out riding we was on the highway and noticed a slight wobble around 65-70mph, not horrible or any thing but just enough to notice and make me a "little" uncomfortable so like look into this
i just put new tires, swapped to spoke wheels but had them trued, new wheel bearings also about 300 miles ago really dont ride on the highway much so cant say if this was happening before? new tires made the bike feel so much better smoother ride better in the curves was really happy until last night
bike has 22k on it, thinking to replace front engine mount and rear swing arm bushing just because is an 08
what should i be checking?
Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
Likes: 4,440
From: anacoco, la
check the steering head bearing fallaway. if it's too loose, you'll get a slight wobble. if it's too tight, you'll have a hard time tracking the bike straight. your batwing has a different spec than my road glide, but i prefer it on the slightly tighter side (but still within spec).
Stellar HDF Member
Joined: Sep 2006
Posts: 3,236
Likes: 95
From: lancaster, pa
Was unstable at 60-70 on sweeping turns with my egc 07, looked at/replaced the same things you just described , Next I dug deeper and did the rear bushings hummmm not quite there, Then started front motor mount when I discovered the motor mount plate had 1 bolt sheared off(top of bolt just sitting on its perch) and the other was loose. Much better for now
btw did not change front motor mount cause it actually looked fine with 78k miles on it wtf? rear bushings looked a bit rough so changed them. So maybe try to check/torque the front mounting bracket?
btw did not change front motor mount cause it actually looked fine with 78k miles on it wtf? rear bushings looked a bit rough so changed them. So maybe try to check/torque the front mounting bracket?
Last edited by voodoodrug; Jul 18, 2018 at 06:23 PM.
Road Warrior
Joined: Nov 2007
Posts: 1,800
Likes: 307
From: Houston, Texas
With only 22,000 on it, I doubt the swing arm bushings or mount are bad. My 08 has 130,000 and both are fine. Check all the obvious things first just to rule them out. As some one mentioned, front fork fall away, air pressure in the tires, air pressure in the shocks, etc... Even though you said you had the wheel trued, check the spokes and make sure they haven't moved and that the wheel is still true.
When you felt the wobble, was it all the time? Just going straight? Just in curves? Was it possibly the road?
You can search here for rear wobble and you will find a ton of reading, The 08 is still the old frame that is notorious for twisting in high speed sweeping turns. I have curve that I make on the ride home everyday that if I get over 70 in it and hit the bump in the middle of it, it will upset the frame and start the wobble every time. Hasn't changed much if it all since the bike was new.
When you felt the wobble, was it all the time? Just going straight? Just in curves? Was it possibly the road?
You can search here for rear wobble and you will find a ton of reading, The 08 is still the old frame that is notorious for twisting in high speed sweeping turns. I have curve that I make on the ride home everyday that if I get over 70 in it and hit the bump in the middle of it, it will upset the frame and start the wobble every time. Hasn't changed much if it all since the bike was new.
Club Member
Joined: Apr 2013
Posts: 5,874
Likes: 3,848
From: Cape Cod
Was unstable at 60-70 on sweeping turns with my egc 07, looked at/replaced the same things you just described , Next I dug deeper and did the rear bushings hummmm not quite there, Then started front motor mount when I discovered the motor mount plate had 1 bolt sheared off(top of bolt just sitting on its perch) and the other was loose. Much better for now
btw did not change front motor mount cause it actually looked fine with 78k miles on it wtf? rear bushings looked a bit rough so changed them. So maybe try to check/torque the front mounting bracket?
btw did not change front motor mount cause it actually looked fine with 78k miles on it wtf? rear bushings looked a bit rough so changed them. So maybe try to check/torque the front mounting bracket?
Looking at the parts breakdown the 07 EGUC like mine has BEARINGS and not bushings for swingarm.........
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Stellar HDF Member
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From: lancaster, pa
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Thread Starter
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Tourer
Joined: Jul 2016
Posts: 357
Likes: 39
From: illinois
Tire pressure is set to 34psi cold
Im going to order the rear bushing and engine front engine mount regardless just do to there age, Ill have a look at the front steering bearing
this was happening while going straight, its possable it was the roads but it done it on a few different routes we was on thats what got me wondering if it something with the bike?
again it wasnt really bad it was pretty mild but enough to feel it, I was on it today and felt it again on another highway right about 70mph feels like the back is wondering just a touch
Im going to order the rear bushing and engine front engine mount regardless just do to there age, Ill have a look at the front steering bearing
this was happening while going straight, its possable it was the roads but it done it on a few different routes we was on thats what got me wondering if it something with the bike?
again it wasnt really bad it was pretty mild but enough to feel it, I was on it today and felt it again on another highway right about 70mph feels like the back is wondering just a touch