Hello, I bought a honda hornet 160R nearly 3months back. Since few day

Hello, I bought a honda hornet 160R nearly 3months back. Since few days it stops after running for sometime. I showed to the service center, and he told that the cap over air filter was loose and its obstructing it, he fixed it with fevikwik and told it wont repeat. But again it stopped after few metres, he rechecked and tood that there is a petrol delivery problem and he told its rectified, but again the problem started.
Somehow i found that whenever my bike stops, if i open the seat and close it back it starts again, runs for few distance and again stops.
Please tell me what might be the problem

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