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  1. 450 won't start.. timing?

    Off-Road / Enduro
    I've just bought a 2016 450 SX-F. On first ride there were a couple puffs of blue smoke so I decided to re ring the piston. The bike has an Athena ECU and apparently had a high comp piston - I didn't know whether to trust the guy I bought it from and didn't want to have to do any re tuning by...
  2. LC4 640 Intake Rocker Arm FAIL!

    Supermoto
    I've read the horror stories and now it’s happened to me :frown: Out for a ride the other day when I noticed the engine getting a bit tappety. Started riding home, then lost a load of power. Got it back to my garage, took the rocker covers off to give them a check. I could have fitted all of my...
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