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idle

  1. Is it worth it?

    Engine/EFI/Drivetrain
    I am thinking of buying a cheap 2008 KFX450 with a rough idle. I'm looking to spend no more than $500 dollars in parts to get it running right and I know some of the fuel injected machines can get pricey to fix depending on the parts needed. Since the quad starts and runs with just a rough idle...
  2. Need help rough idle

    Important Information
    I am looking at buying a 2008 KFX 450 off of craigslist for $1500. The reason it is so cheap is because the owner says after sitting all winter it starts, and has a rough/hard idle and he needs quick cash for personal reasons. Since the rough idle appeared after sitting this leads me to believe...
  3. dies after 10 seconds

    Engine/EFI/Drivetrain
    start the bike up and it runs for about 10-30 seconds, and it dies out. doesnt matter if its idle, or rev. my thoughts were either a bad fuel pump, or injector. not my bike, but my best friends 08kfx450r. he pretty much had the entire engine replaced after an overheat blow out. new crank...
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