Author Topic: Tipping over!!  (Read 68 times)

Offline Thomas

  • Curious
  • Posts: 1
Tipping over!!
« on: Today at 11:53:27 AM »
Hi All, New here! Bought a 1991 K100RS, about a year ago. Had to have some work done on it before it was road worthy. Soon after getting on it for the first ride. I discovered it wants to fall over when trying to turn around slow. Or when you come up to a stop sign, or behind a car. Is this normal for this bike?? I can't believe that it is! I was trying to turn around in a parking lot, at a campground I was staying at. The damn thing started to go over! I couldn't stop it from going! Threw me on the ground! Messed my leg up pretty good! I love the bike when I get it moving. But, this feet down turning issue, ain't good!! Anyone else having or heard of this problem?? If so, I'd appreciate any ideas of what is causing it. And how to fix it. If I can't figure it out, and straighten it out come spring. I'm afraid it will go back on Craig's List. I'm 67 yrs old...can't be doing this tipping over stuff any more!! Thanks for any thoughts about this!! PS: Come spring I'll be replacing the steering head bearings, and fork seals.
  • Middlebury, Vermont USA
  • 1991 K100RS

Offline johnny

  • TrailBrakingThrottleWhacker
  • ^ Quintessential Motobricker
  • Posts: 6919
  • Whacking...n...Chopping Sliding...n...High Siding
Re: Tipping over!!
« Reply #1 on: Today at 12:04:10 PM »
greetings...

the reason your motobrick wants to fall over is because the forces of top heavy balance and gravity...

its same thing for slow manuvering plus the forces of motorcycle gyroscopic effect...

look... the goal is to be able to do slow figger 8s in a space of 4 parking spaces... start with 8 spaces and get it down to 4... it takes counterbalance slipping clutch back brake...

you do that daily until its involuntary... then you can pull a fog line to fog line u turn on a narrow country road feets on pegs one fluid manuver...

look here... www.motobrick.com/index.php/topic,154.msg174.html#msg174

setts you up a cone course in a parking lot... you can getts the layout here... www.msf-usa.org

its a crazy world... butts you already knew that...

j o
  • :johnny i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin  :johnny

Online Chaos

  • ^ Quintessential Motobricker
  • Posts: 2517
  • Mars needs women!
Re: Tipping over!!
« Reply #2 on: Today at 12:09:20 PM »
K bikes tend to be a little top heavy and that's exaggerated if you're short of inseam or weak/bad knees.  There are some tricks for lowering the bike, that may help.  Otherwise it's just something to adapt to or buy something less tippy. 
  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
2012 Ural 2WD sidecar (BMW's bastard step child)

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 3973
Re: Tipping over!!
« Reply #3 on: Today at 01:09:47 PM »
There are techniques for slow manoeuvring. There are multiple sites showing how on the web, once viewed find a large flat area and practice. In OZ there are also courses that you can do on both high speed and slow speed very worthwhile. Are you able to flat foot? If not there are various things that you can do.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4727
Re: Tipping over!!
« Reply #4 on: Today at 01:12:08 PM »
Avoid using the brakes when moving slowly with the front wheel turned, especially the front.  Also, make sure the throttle position sensor is adjusted properly and the throttle bodies are balanced to minimize notchy throttle response. 

Have you checked the fork oil?  Changing the oil and adding the proper amount helps a bit with the front end dive that contributes to slow speed drops. 

Also, look at things you can do to lower the bike.  If you can find one, Worx performance shocks, can be rebuilt and lowered at the factory for a reasonable price.  I have my K75 lowered 1/2" with a Worx shock and the forks pushed up in the triple clamps.

Having said that, I still have a drop every year or so.  I look at it as part of the K bike experience.  I ride about 8-10,000 miles a year.  I'm 71 and 6' tall and like to think I still have another five or six years of riding left in me.

  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 3973
Re: Tipping over!!
« Reply #5 on: Today at 01:38:58 PM »
Try here for a training course.https://dmv.vermont.gov/young-drivers/vermont-rider-education-program-vrep There are heaps more sites dedicated to slow manoeuvring. https://www.ridinginthezone.com/how-to-ride-a-motorcycle-slowly/
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Laitch

  • Redline 7000
  • Forum Moderator
  • ^ Quintessential Motobricker
  • Posts: 7222
Re: Tipping over!!
« Reply #6 on: Today at 02:21:15 PM »
Hi All, New here! Bought a 1991 K100RS, about a year ago. Soon after getting on it for the first ride. I discovered it wants to fall over when trying to turn around slow. Or when you come up to a stop sign, or behind a car.
Come spring, let's get together and see about improving this. Your youth and experience won't bother me. In the meantime, this is how it's done.
  • Along the Ridley in Vermont.
  • 1995 K75 72,000 miles
I wept because I had no radials until I met a man who had no splines.
https://tinyurl.com/RillRider

Offline drut

  • ^ Proficient Motobricker
  • Posts: 373
Re: Tipping over!!
« Reply #7 on: Today at 03:02:08 PM »
I have 1990 K100Rs16v and at 71 find I have to be careful,although no problem at walking speed up over it can(especially with full fuel tank)catch me out when paddling around garage or whatever.If it tips past a certain point I cannot stop it and need help to lift it back up but I have never had any issues pulling up to a stop at junctions etc.If memory serves me correctly there were some "drops" when paddling about by journalists on the K1 launch and it is nearly the same bike apart from cosmetics.
  • Newcastle upon Tyne UK
  • 1990 K100RS + 1980 Moto Guzzi V50 II + 1971 Aermacchi/HD 350ss
Much older but certainly no wiser!

Offline daveson

  • ^ SuperNatural Motobricker
  • Posts: 529
Re: Tipping over!!
« Reply #8 on: Today at 05:01:54 PM »
Make sure the handlebar is straight when stopping, and you won't be dropping it anymore at stop signs. The video's are good,  I think the best tips with turning is practice slipping the clutch to get the lean angle right, look ahead and counterbalance with your body.
  • Victoria, Australia
  • Current;'86 K100RT Past; '97 Yamaha V Star 650 Yamaha V Star

Tags: