Incessant rattling at 5-6000 RPM - GT250R

[DarkLord]

This is driving me nuts. At about the 5-6000 RPM rev range I get this infernal vibrating/rattling noise that doesn't go away until I go over this rev range. I've had the fairings apart many times looking for the problem, and used the greatest bike fix it tool ever - duct tape on places I thought may have been loose, but still no luck whatsoever.

I thought I was the only Hyo rider I know who has it, however one of my riding buddies also has it on his Hyo. I can't pinpoint it by revving it in neutral - it only vibrates when the bike is moving.

Has anyone else out there had it and found out how to get rid of it. Any advice would be hugely appreciated!

Sincerely,

DarkLord (a frustrated Hyosung owner who is looking forward to being able to upgrade to an SV1000 with two free-flowing pipes on the back - when he can afford it!!)

[NDORFN]

The problem there can be isolated to somewhere within the fact it's a Hyosung.

[The Stranger]

This is driving me nuts. At about the 5-6000 RPM rev range I get this infernal vibrating/rattling noise that doesn't go away until I go over this rev range.

It's screaming in pain.

[psycho22]

I knew this thread was gonna get it's share of Hyo Haters.:rolleyes:

[CookMySock]

Dunno mate. Put a noisy pipe on it so you can't hear it.

Steve

[NDORFN]

I knew this thread was gonna get it's share of Hyo Haters.:rolleyes:

I don't hate them. I'm just glad I didn't end up buying one. Got a Ninja250 instead, no regrets.

[psycho22]

We have both got the Screaming Demon pipes and we can still sure as shit hear the farken rattling.

[psycho22]

I don't hate them. I'm just glad I didn't end up buying one. Got a Ninja250 instead, no regrets.

Oh well thats alright then.:niceone:

Was seriously looking at the ninja's but the Hyo's size and sound won it for me.

[steve_t]

I've heard of air filters / air boxes resonating at certain RPMs/loads... maybe have a look here?

[psycho22]

I've heard of air filters / air boxes resonating at certain RPMs/loads... maybe have a look here?

I'll check that one out but mine sounds more like it is coming from the front of the bike.

[mossy1200]

This is driving me nuts. At about the 5-6000 RPM rev range I get this infernal vibrating/rattling noise that doesn't go away until I go over this rev range. I've had the fairings apart many times looking for the problem, and used the greatest bike fix it tool ever - duct tape on places I thought may have been loose, but still no luck whatsoever.

I thought I was the only Hyo rider I know who has it, however one of my riding buddies also has it on his Hyo. I can't pinpoint it by revving it in neutral - it only vibrates when the bike is moving.

Has anyone else out there had it and found out how to get rid of it. Any advice would be hugely appreciated!

Sincerely,

DarkLord (a frustrated Hyosung owner who is looking forward to being able to upgrade to an SV1000 with two free-flowing pipes on the back - when he can afford it!!)

Which servo do you fill up from.It could be techron people.Possibly one stuck under a valve.

[gatch]

We have both got the Screaming Demon pipes and we can still sure as shit hear the farken rattling.

Take the pipe off, leave it off.

Rattle gone.

Chur.

[Mully]

Only when it's moving?? Well, what only gets action when you're moving?

Wheel bearings?
Countershaft sprocket?
Chain?
Swingarm bearings?
Speedo cable?
Windscreen? (from airflow)
Exhaust mounting bolts?

Does it happen at any speed?

[DarkLord]

It's any speed. It's really the RPM that it's at which seems to cause it. Sounds like it's coming from the front of the bike, up in the front fairing somewhere. But I can't for the life of me pinpoint what or where it is.

[CookMySock]

Check theres not too much engine oil in it. Ignore it and ride it, or take it o the shop and ask.

Steve

[Harvd]

It's any speed. It's really the RPM that it's at which seems to cause it. Sounds like it's coming from the front of the bike, up in the front fairing somewhere. But I can't for the life of me pinpoint what or where it is.

Like uhh the motor?

J/k

loose fairing bolts at resonant frequency? my rg150's screen rattles like a bitch at 7000 and again at 11000...

Oh and i had a similar thing, And i know it drives you nuts! lol my one turned out to be nuts. Or one at least, off the bar end that had then rattled around like crazy in the handle bars. Only at certain revs though.

Good luck with the mystery rattle from hell!!!!

[DarkLord]

I believe I may have solved, or at least significantly reduced the problem.

I made a post about it on KORider (good forums for all you whoflung owners out there) and a dude wrote back saying he had the same thing and he stuck adhesive foam between the dashboard and the windshield, also between the bottom of the dashboard and the part of the frame it connects to.

So I pootled off to Mitre 10 on my lunch hour, bought some and gave it a try. The rattle has not completely gone - there is still a very faint buzz - but compared to what it was, it has substantially improved!

[Hiflyer]

I had the same problem, asked around a few mates and did the same thing with the foam but still was there so I just tightened the bolts of the windscreen and it disapeared!

Then is happened again but it was just a washer I had dropped in the fairings :doh:

[ital916]

most obvious reason to check would be to see if the muffler is loose.

Give the header pipes a push where they enter the muffler/slip on. If it is loose it will rattle at certain rev ranges.

Happens with my bike, nothing serious it just rattles.

[cave weta]

Tick tick tick tick..... BANG!:crybaby:

[nivram]

I feel a korean fail coming on :bye:

[Hiflyer]

Even though he said its prettymuch fixed?