Author Topic: Strange instability AK 550  (Read 398 times)

bgjosevski

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Strange instability AK 550
« on: June 20, 2024, 02:16:26 PM »
I just replaced the oem screen with the puig screen. Wind protection is way better.
I still get turbulence of wind at lower body, and legs are super exposed. I guess it’s the motorcycle design.
After replacing the screen I noticed very strange instability around 50-60 mph. Feels like the front gets unstable from the wind. I experienced it twice yesterday.
I can’t really explain it, maybe like front wheel shaking or the wind throws you off your path for a second. Weather was nice and clear, even though you feel like it’s very windy on this bike.
Anybody else?

Ben

rjs987

  • 2022 Kymco AK 550 - Matte Deep Blue
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Re: Strange instability AK 550
« Reply #1 on: June 20, 2024, 03:15:02 PM »
No issues like that with mine. I feel there is about the same weather protection as I had on my Burgman 650. No instability at any speed either... but I've only had it up to just over 85 mph so far.
I do keep the tire psi a little higher than the manual calls for. Instead of 34F/38R I keep the psi at an indicated 37F/39R on the TPMS. I also found the TPMS display is close to 3 psi low compared to a few pencil gauges I have. Normally I  like to keep my motorcycle and super scooter tire psi at 40F/42R per the pencil gauges. I find tires do last a bit longer in my experience doing this and I feel a more solid connection to the road as well. I used to keep the recommended psi but about 20 years ago followed the advice of many riders in my riding groups.
/bob
2022 Kymco AK 550 Super Touring Extreme in Matte Deep Blue
RETIRED - US Navy and Air National Guard and civilian career

bgjosevski

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Re: Strange instability AK 550
« Reply #2 on: June 20, 2024, 03:26:06 PM »
No issues like that with mine. I feel there is about the same weather protection as I had on my Burgman 650. No instability at any speed either... but I've only had it up to just over 85 mph so far.
I do keep the tire psi a little higher than the manual calls for. Instead of 34F/38R I keep the psi at an indicated 37F/39R on the TPMS. I also found the TPMS display is close to 3 psi low compared to a few pencil gauges I have. Normally I  like to keep my motorcycle and super scooter tire psi at 40F/42R per the pencil gauges. I find tires do last a bit longer in my experience doing this and I feel a more solid connection to the road as well. I used to keep the recommended psi but about 20 years ago followed the advice of many riders in my riding groups.

Hey Bob,

Yes, disconnected is maybe the word i was looking:) It feels like it disconnects from the road.
Oh I’ve had it only up to 75 maybe. Not even planning to go above 80:)

Ben

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