Front end vibration and brake pulsing - K-Bikes.com - Excellence in Motion
 
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post #1 of 3 (permalink) Old Sep 18th, 2019, 6:31 am Thread Starter
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Front end vibration and brake pulsing

Hello chums - I have a diagnostic question about the front end of a 2006 1200GT.
About 3/4 of the way through a 1500 mi trip in to the Catskills and around, we (my spouse was the passenger for the first time) found the front tire was starting to show the cords on a Road Pilot 3. It was Labor Day weekend. No way finding a tire and getting it serviced on Saturday night, in the Catskills. I swear the tire was fine before we left.
Before we left, I had been noticing shaking / pulsing from the front brake when braking at 30+ mph and I checked the pads. The pads on the right inside pad was definitely getting hit harder than the others. So I installed 4 new EBC HH pads and bled the front brakes etc.
Decided to go anyway because I didn't want to lose the $1000 in hotel reservations.
Anywho, brakes were still pulsing all the way thru to home. It felt like I had a warped rotor. I know, I know, it isn't probably a warped rotor.
Thankfully got home, replaced the front tire and now I feel a front end wobble at slow speeds and vibration at higher speeds.

My first thought that maybe it wasn't balanced right. But would bad balance show itself as a wobble at slow speeds?
Bent rim? Anyone that commutes to work in Michigan can attest to the road conditions here and I have hit a couple potholes (pits to hell) that scared the crap out of me. Nevermind the mini-mountain speed bumps because the heaving of the concrete here.

The two problems may not even be related.

Any ideas of where to start would be great.

PS. if it is the rim, what other models can I steal from that fits the K1200? I was thinking RS of the same vintage.
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post #2 of 3 (permalink) Old Sep 19th, 2019, 7:33 am
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Eric

One problem might be the ball-joint on the front Hossack suspension. It can tighten and get 'notchy' or even feel loose, especially if you've hit a few big potholes - I can't tell you the number of times I stopped and got off my 2005 K1200S convinced that I'd got a puncture. The difference in front end feel on my 2015 K1300S is so much better.

I guess you could test this by putting the bike on the main-stand, getting a pillion on to push the back end down and grab those lower 'fork' legs to feel for tightness or play.

Hope you get sorted, David
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post #3 of 3 (permalink) Old Sep 21st, 2019, 9:12 am Thread Starter
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I'll give it a whirl today and see what's what.
Thanks David.

Cheers,
Red
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