Added: 8 months ago
From: blasterfan03
Views: 1,164
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  • did you ever get your 400ex running? I sold you it for $800 last winter

    

  • @ridehard0123 damn what a small world! yeah haha we did, put a stage 1 hotcam in it and it runs like a champ! that thing is fast, it almost keeps up with the 450 until like 4th gear

  • @ridehard0123 ill do it when we get it back to my house for the ice we just got to stud the tires

  • Im new at this but how can you tell when it needs a rebuild? and re jetted

  • @QuadRider808 he prob did, the yfz's are known to bogg on start some unless you adjust the carb needle up a notch or two. XD

  • @QuadRider808 not since i got it. im new to 4 strokes they seem more fussy about the jetting. in around 4th and 5th it hiccups at about half throttle. i think its lean im gonna have to look at the jets. but im not sure all about the needle and clip settings

  • @blasterfan03 go with a 172 or 178 main jet and keep the pilot jet the same and all other jets the same and adjust the needle up a notch or two.

  • @WIllKogaSpencer alright ill give that a try thanks bro

  • @blasterfan03 if that dosent work change the pilot jet to a 48 and try the zip tie mod

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