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Mark
Mark, Technician
Category: Car
Satisfied Customers: 1504
Experience:  Qualified City & Guilds
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I have a Hyosung 125cc with a 4 valve head, it stopped suddenly

Customer Question

I have a Hyosung 125cc with a 4 valve head, it stopped suddenly I check the head and I have 2 exhaust valves broke and a hole in the piston also the cam wheel was damaged wear the locating pin is and the cam follower arm was broke on the shaft, I was not riding at the time and the guy who was said he was only doing 20 mph, has he been flogging the bike
Submitted: 3 years ago.
Category: Car
Expert:  Mark replied 3 years ago.

Mark :

Hello, my name is Mark and I will try help you with this.

Mark :

It sounds like the engine has been revved over the redline.

Mark :

It could happen if the rider selected a lower gear and cause the engine to over rev.

JACUSTOMER-tk2repcy- :

thank you

JACUSTOMER-tk2repcy- :

just as I thought

Mark :

No problem

Mark :

Please remember to rate my assistance.

Mark :

Thanks.

Mark :

Mark.