Shudders refers to the act of convulsing and trembling. This is commonly associated to fear, revulsion or medical problems.
brake disc broken
try changing your ignition coil
If a Zx2 shudders and dies out at stops and idle, the idle might need adjusted. If the idle is set too low, it will not maintain enough power.
It is either cold, or very scared.
Probably have a warped or out of round brake rotor or brake drum.
replace stock cam
Have the motor mounts checked.
A slithery snake sometimes shudders at a sandy sandwich.
Most likely warped rotors.
Most people don't like them They're scary... and they bite... *shudders*
U havobeat red 2 times run around saffron city 18 times and then the shudders open and then charizard ivysaur and squirrel apper you throw a pokeball at each the first time and you also get kanto starters hope I helped
If it is running fine at high revs the most likely problem is an injector