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About ryan23

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  1. thank you for your advice. you were right i checked the skid plate on the bike it was loose and when i tightened it up the noise got consirably quieter as far as the smokeing goes after riding it for a couple of hours the bike does not smoke anymore.
  2. specifically i am wondering what would cause the ticking and the smoking. sorry if i was unclear in my initial post
  3. i am new to the 4 stroke scene. i found a 2008 yz450f with a claimed 11 hours on it. bike looked new verry little case wear foot pegs were perfect original sprockets and chain in good condition original tires. i started the bike and listened to it run for a couple of minutes sounded great. the only thing that was done to the bike was it had the stock muffler taken apart and a usfs leagle spark arrester bolted on. apparently it was never rejetted. although he said it was. i found out otherwise apon further investigation. rejetted (JD jet kit) the bike added a fuel screw (flex jet) changed the oil. bike has a verry apparent clack/tick when warm. it only does it when it is warm what is that. any ideas? i think that the bike smokes too much when warm and under a load. or if you snap the throttle a couple of times when not in gear.