K11 Owners Group

Tim (Midland Section) · Posted: Mon Nov 12, 2012 8:18 pm Post subject: LTSE Vibration (Fixed)

Ever since we took a most enjoyable blast up the Horseshoe pass in September, there has been a "buzz" through the footrests. Interestingly it's only in straight & level flight. Any cornering, however slight, the vibes go.
To date I have:-
Replaced the rear tyre.
Checked for any play in hub bearing.
Checked for any roughness in hub bearing (my first worry).
Checked Oil levels & oil cleanliness
Checked for any play in swing arm.
Tried it in Neutral.
Tried it solo.
Checked for broken exhaust studs.
Checked for broken exhaust pipes.
Packed the fat exhaust rubber (a common stud & pipe breaker when worn)
Ensured security of engine & gear box bolts.
No change when braking.
Brakes too are not binding.

Done a search on this Forum.

What next, any ideas / experience please ?
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485

Inge K. · Posted: Tue Nov 13, 2012 5:22 am Post subject:

Worn or damaged rubber mounts at the crossbridge or side brackets?

Tim (Midland Section) · Posted: Tue Nov 13, 2012 7:03 pm Post subject:

Scott_Anderson · Posted: Tue Nov 13, 2012 11:35 pm Post subject:

How many miles on what kind of front tire. Sorry TYRE........ Laughing

Are your wheels(tyres) static balanced or dynamic(Dyna beads or similar on the inside of the tyre.)
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

SugarHillCTD · Posted: Wed Nov 14, 2012 6:25 am Post subject:

Tim (Midland Section) · Posted: Wed Nov 14, 2012 6:26 pm Post subject:

Static Balanced, PR2 front 1/3 worn. NO Dynabeads OR Slime.
Must do a wheelie, see if it stops.
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485

Scott_Anderson · Posted: Thu Nov 15, 2012 12:01 am Post subject:

Something else that I was thinking today, are you noticing any change in the vibration at a specific road speed or RPM range?
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

SugarHillCTD · Posted: Thu Nov 15, 2012 6:18 am Post subject:

You also said "no change while braking"

What happens if you very lightly touch the front brake lever- just enough to start the pads to contact the rotors?
_________________
John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

SugarHillCTD · Posted: Fri Nov 16, 2012 8:25 pm Post subject:

Any update on the vibration?
_________________
John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

Tim (Midland Section) · Posted: Sat Nov 17, 2012 11:33 am Post subject:

Not done any more. Intended to today. Been struck down by "Man Flu". May get out tomorrow.

Most noticeable between 50 & 70 MPH. Don't remember any changes under braking however light.
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485

Tim (Midland Section) · Posted: Sun Nov 18, 2012 6:09 pm Post subject:

Thank for all the help Gents, made a better job of the item below, this time. Sad

Packed the fat exhaust rubber.
18 21 1 461 922 a £1 ($2) part.
Took off both cups (Max BMW calls them washers) either side of the rubber & glued a ring of inner tube (remember them) to the sloping bit of each cup & reassembled.
Hopefully precluded an exhaust (header) pipe welding job in the future too.

60 more happy miles done today in 5 to 8 Celcius, dry, sunny & no worrying tingles through the footrests.
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485