Buzzing, vibrating sound from the front end?

Aigght · 07-19-2022, 10:57 PM

Lifan X-pect 150miles so far. This concern has been in the back of my head since the beginning.
A Strange buzzing/vibrating sound coming from front end, possibly the wheel. Almost like a light metal rubbing up against something else creating a shaking-rattle sound only on the lower end rpms (2-5k) when accelerating or decelerating. It’s the same exact frictiony sound every time it occurs. It’s like it only happens when the bike is working at a certain rate it begins because it doesn’t increase as speed increases, it happens on lower end rpms. Clutch is not engaged, otherwise the sound would go away since the motor isn’t vibrating as much.
Maybe it’s one of those metal line holders on the fork? The rotor? I really don’t know.
There are no noticeable impairments or effects when driving. Everything feels fine. Wheel spins freely. Calipers aren’t touching. No sounds at very low speeds, only when acceleration picks up ,causing bike to vibrate and then, the rattle sound occurs and eventually goes away once i go faster a couple thousand rpms later.

Is this normal for a China bike? I understand some sounds are typical, I just need some reassurance. Thanks

21_Xpect · 07-20-2022, 05:23 AM

It's in the fuel tank, open the cap inside on the left there is a metal tube that you can "feel" with a flat screwdriver you can get in-between it and the tank wall and slightly bend it out if it bothers you and it will stop. NOT MY FIX, I found the info here and it's why I joined. If I could recall who's info it was I would give credit!

Aigght · 07-20-2022, 11:28 AM

I heard this also from another source. Will try, it’s pretty annoying. Thanks

krat · 07-20-2022, 03:10 PM

I had the same problem about a week ago. I thought the front wheel was falling off and discovered it was a loose bolt on my after market windscreen.

Boatguy · 07-20-2022, 06:39 PM

yes, that’s what the buzzing is. Just seconding the information. That’s accurate.

I’ve never fixed mine. I just let it buzz away. LOL

Aigght · 07-21-2022, 06:06 PM

https://ibb.co/GnRRqzn

So basically the narrow rod as shown needs to be bent to the left, so it won’t contact the wall to the right, correct?
Before I bend the shit out of it, I want to make sure lol

21_Xpect · 07-21-2022, 11:43 PM

I just slid a flat screwdriver down it until I found where it was touching and gave the driver a twist and it gave enough clearance so it wasn't buzzing anymore, but yeah that's it!

Frank Hotdogs · 07-21-2022, 11:51 PM

Ha! Same story, I have about 240 miles on my X-pect and have been low key going nuts wondering what's up with this sound but haven't taken the time to track it down. Yay for clues!

Aigght · 07-24-2022, 08:06 PM

So I’ve tried bending it with a flat and no significant changes….but what I have noticed is that when I lean forward while riding the sound stops! Almost as if the weight being redistributed changes where the vibrations go. Any ideas?

07-19-2022, 10:57 PM	#1
Aigght Join Date: Jul 2022 Posts: 8	Buzzing, vibrating sound from the front end? Lifan X-pect 150miles so far. This concern has been in the back of my head since the beginning. A Strange buzzing/vibrating sound coming from front end, possibly the wheel. Almost like a light metal rubbing up against something else creating a shaking-rattle sound only on the lower end rpms (2-5k) when accelerating or decelerating. It’s the same exact frictiony sound every time it occurs. It’s like it only happens when the bike is working at a certain rate it begins because it doesn’t increase as speed increases, it happens on lower end rpms. Clutch is not engaged, otherwise the sound would go away since the motor isn’t vibrating as much. Maybe it’s one of those metal line holders on the fork? The rotor? I really don’t know. There are no noticeable impairments or effects when driving. Everything feels fine. Wheel spins freely. Calipers aren’t touching. No sounds at very low speeds, only when acceleration picks up ,causing bike to vibrate and then, the rattle sound occurs and eventually goes away once i go faster a couple thousand rpms later. Is this normal for a China bike? I understand some sounds are typical, I just need some reassurance. Thanks
	1

07-20-2022, 03:10 PM	#4
krat Join Date: Nov 2019 Location: KY Posts: 260	I had the same problem about a week ago. I thought the front wheel was falling off and discovered it was a loose bolt on my after market windscreen. __________________ %90 of the Chinese motorbikes ever made are still on the road. The other %10 made it back home.
	1

07-20-2022, 06:39 PM	#5
Boatguy Join Date: Feb 2021 Location: Northeast Posts: 929	yes, that’s what the buzzing is. Just seconding the information. That’s accurate. I’ve never fixed mine. I just let it buzz away. LOL __________________ 2020 Lifan x-pect
	1

07-20-2022, 05:23 AM	#2
21_Xpect Join Date: May 2022 Location: White Pigeon, Michigan Posts: 5	It's in the fuel tank, open the cap inside on the left there is a metal tube that you can "feel" with a flat screwdriver you can get in-between it and the tank wall and slightly bend it out if it bothers you and it will stop. NOT MY FIX, I found the info here and it's why I joined. If I could recall who's info it was I would give credit!
	1

07-20-2022, 11:28 AM	#3
Aigght Join Date: Jul 2022 Posts: 8	I heard this also from another source. Will try, it’s pretty annoying. Thanks
	1

07-21-2022, 06:06 PM	#6
Aigght Join Date: Jul 2022 Posts: 8	https://ibb.co/GnRRqzn So basically the narrow rod as shown needs to be bent to the left, so it won’t contact the wall to the right, correct? Before I bend the shit out of it, I want to make sure lol
	1

07-21-2022, 11:43 PM	#7
21_Xpect Join Date: May 2022 Location: White Pigeon, Michigan Posts: 5	I just slid a flat screwdriver down it until I found where it was touching and gave the driver a twist and it gave enough clearance so it wasn't buzzing anymore, but yeah that's it!
	0

07-21-2022, 11:51 PM	#8
Frank Hotdogs Join Date: Dec 2021 Location: Missoula MT Posts: 37	Ha! Same story, I have about 240 miles on my X-pect and have been low key going nuts wondering what's up with this sound but haven't taken the time to track it down. Yay for clues!
	1

07-24-2022, 08:06 PM	#9
Aigght Join Date: Jul 2022 Posts: 8	So I’ve tried bending it with a flat and no significant changes….but what I have noticed is that when I lean forward while riding the sound stops! Almost as if the weight being redistributed changes where the vibrations go. Any ideas?
	0