I have purches discover 150cc in 23-08-1010. After 2 month i listing some bad sound in my enjinee then i go for service center engineer tell me nothing is there but same sound is again .please help me .

Sounds like a problem with the CDI ignition. Help and videos in the link.

https://www.google.com/search?q=2020+Yongfu+150cc+scooter+no+spark

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Check the oil level. An oil change should be carried out anyway about every 6 months, and filter change every 12. All dependent on the amount of use it gets.

hey
To know how old the phone is. dial *#06#
then you ll het the serial number of your phone. go to any nokia care and give that number to them they ll be able to tell you how old is the phone.

hope it helps

Recommend contacting your nearest authorized service center directly or online here:

http://www.jonway-motor.com/contact.html

The problem you describe has many possible causes. Any number of engine management sensors (which are starting to go bad) can cause this problem, the fuel pump is starting to go bad, the engine computer, wiring, connectors, etc.. the list goes on and on. My experience tells me to tell you to take the vehicle into a Hyundai Service Center and try to get it diagnosed. If successful, they'll give you an estimate of repairs (parts, labor, tax, time-frame, etc.). This way you'll know exactly what's wrong and what's required to fix it. Now, since the problem is 'INTERMITTENT', that makes it tough for the technician unless he/she can discover any DTC (Diagnostic Trouble Codes) stored in the computer (ECM - Engine Control Module) - Did the 'Check Engine" light ever come ON? If so, this will help narrow the search and diagnosis.

Actually their looks will be different otherwise everything is almost the same. But the brand name Pulsar-Definitely Male does matter.