[Zeus]

I have had this issue for a couple months now. It is driving me insane and noone is able to figure out where this sound is coming from. It sounds metallic and only happens when you go above 4500 RPM. I can only describe it as a zinging/buzzing noise.
Any ideas?

 

[evz]

I have a sound at about that rev...I can hear it best if the is a building or wall right beside me. My leoncino 500 has about 2kkm on it...Ive heard the noise since new. Sounds like a rattle around the top of the motor....like a loose rocker arm or valve rattling. I havent figured out what it is yet.

 

[WllyThKd]

My 752s only at 300+km now having buzzing sound everytime i accelerate even at low RPM like 1.5-2k... feeling annoying...

 

[EJ Pamatmat]

Are you still having the issue, I have the sane with the same engine as the TRK

 

[andretomeferreira]

i have that issue too, any solutions?

 

[har.liviu]

Hello I have the same issue . Arownd 4500rpm i can heare the sound. My question is : can I use the bike like this? I just bought it like this....

 

[ChopperChas]

It's the metal bracket that holds the coil-on-plug assemblies to the valve cover. The bolt is loose and it makes a ringing/vibrating sound that is annoying AF. Unfortunately tank and airbox removal are required to fix it. Or radiator removal. Unless you have tiiiiny hands.

 

[Amith Hyd]

It's the metal bracket that holds the coil-on-plug assemblies to the valve cover. The bolt is loose and it makes a ringing/vibrating sound that is annoying AF. Unfortunately tank and airbox removal are required to fix it. Or radiator removal. Unless you have tiiiiny hands.

Super expert advise my friend. Authorised service centre couldn’t identify the fault. I had to show them your suggestion and then they located the bolt missing. Not the issue stands resolved. Love from India

 

[ChopperChas]

Super expert advise my friend. Authorised service centre couldn’t identify the fault. I had to show them your suggestion and then they located the bolt missing. Not the issue stands resolved. Love from India

I'm glad that solved your problem!

 

[ChopperChas]

Hah, super funny. I rode without earplugs for the first time yesterday and realized my Leoncino is having the same ringing again. So I'll be using locktite on that bolt next time I have the tank off.

Charlie.

 

[Ruig98]

I've put some Tape between the metal plate and the plugs think it is bad? Can it catch fire?

 

[Lucas641]

It's the metal bracket that holds the coil-on-plug assemblies to the valve cover. The bolt is loose and it makes a ringing/vibrating sound that is annoying AF. Unfortunately tank and airbox removal are required to fix it. Or radiator removal. Unless you have tiiiiny hands.

Hello ChopperChas ! could you tell me the number of the exact part you are talking about please? The image comes from the leoncino 500 trail parts guide that I found on the net. Maybe it's the number 8 ? Thanks by advance ! From France.

 

[ChopperChas]

Part #8. It's held on with a single bolt and once the bolt is loose it makes one helluva racket.

 

[Amith Hyd]

I further realised the problem is still not solved. This could be the combustion noise under hard acceleration to compliance with pollution norms. No need to worry other than the irritating noise under 4000 rpm

 

[Lucas641]

hello everyone. I'm suspecting the button on the key itself. when pressing it and accelerating, the buzzing noize is nearly inaudible