Im new to quads and just got a KFX 400 03. Do any of u know how to bump start? It wont start and I want to try it.

 

Check to make sure you have spark, have gas to the float bowl ,and have compression. If youre missing any of those, then bump starting wont do you any good.
Bump starting is basicly using the wheels to spin the motor, instead of using the starter motor or rope pull. If a motor is capible of being started....bump starting will do it.
The easiest way is to have someone pull you behind their quad, or lawn tractor, with a tow strap. Hook up the strap, put your tranny in 3rd or 4th gear, pull in the clutch, turn on your key, and have them start pulling you. You only need about 7mph or have it work, and once youre up to speed, let out the clutch normally, and the wheels will find traction, and turn over the motor. If you normally need choke, then have the choke on also.
If it wont start in a minute or two, then youre missing spark, gas or compression.