hello
u wanna say that simply on Low Rpm on 2nd gear it gives jerks....common problemm.....
Solution
@) reduce plug gap to 0.6mm from 0.8mm(default).
@) check ignition coil and replace if needed by some imported Bosch one....
@) if Plug wires are also weak or broked,broken current can also let this problem.....
this isssue is solved by these three thing..i also got the same problem and solved by these things...
Thanxxx