Hi Friends, I am facing the same issue. I have Discover 125 CC DTS-i and I purchased it in Jan 2006 .It was running well until last year when It started same problem. It runs well for 10 - 15 kms and then stops to pick up suddenly ....then I let it cool off for 5-10 minutes and it starts afterwards. I have shown it to various service centre and mechanics and got electric coils checked . However the problem still remain the same. Please suggest.