09 450 hard starting

3 replies to this topic
  • washel157

Posted February 13, 2010 - 05:26 AM


What`s up guys! Do you guys ever have a hard time starting your 450`s when it`s cold? I`m one bigger on pilot and main jets. Air screw is 2 turns out. Valves are perfect. Should I be juicin the throttle once or twice before trying? It only does it at first start up of the day. Thanks!

  • machalooney

Posted February 13, 2010 - 07:39 AM


Give the throttle two good twists. Turn on your choke. Then kickstart with out turning the throttle. When you are riding in cold temps you should also consider a more viscous oil, I run Rotella synthetic 5-40 when riding in the cold temps up here, and it helps the starting of the bike.

Once the bike starts, leave the choke on for a while and don't start revving the engine until it is pretty warm, let the oil get a chance to coat the motor and warm up for a while before revving.

How does your plug look? Old gas?

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  • Dick Falcon

Posted February 13, 2010 - 07:44 AM


it gets alot easier as it loosens up.

  • washel157

Posted February 13, 2010 - 08:00 AM


You know, for some reason this is the only 450 out of 7 that I have had to give a twist of the throttle before starting. The plug is new and gas is good. Thanks for the advise guys!

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