How to Adjust Valves on a Modern MX Motorcycle

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Uploaded by on Mar 29, 2011

This video shows the process to adjust the valves in a modern 4 stroke dirt bike. The procedure will be very similar for all manufacturers. The bike in this video is a Suzuki RMZ450. This general process will work for pretty much any engine with valve shims for valve clearance adjustment.

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Howto & Style

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Uploader Comments (TheAlexManVideos)

  • is isnt that good to to that outside there wil come all kind of shit in it:P im just saying

  • @mp4slengone True. But it rained that morning so there wasn't really any dust. I think washing the bike beforehand and keeping your hands/gloves clean is more important.

  • nice vid

  • @donyboy73 Thanks. Glad you enjoyed it.

  • alex your the man!! you make things look so easy. great job bro.

  • @Doubledge007 As long as you keep track of where things came from most jobs are pretty easy.

Top Comments

  • chyeahhh braaap

  • what did everyone learn from this.........BUY A 2 STROKE

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All Comments (19)

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  • @kimballer126 if tight, you don't need shims. they don't do anything.

  • So if the valves are tight u go UP in shim size?

  • I could never do this fml

  • @BrassBallsProduction i totally agree , i love working on all kind of motors

  • this video helped me understand 4 strokes so much more, my dad always told me to stay away from them because of how expensive they are to fix&all the maintenance every 10 hrs but now i want one more than ever, lol, it might be weird but i'm 15 & i kinda like repairing motors, im about to sell my kx250 for a 450

  • hay im thinking about going to a yzf250 and after every so rides do i release my valve clearanse or

  • Alex, can you do me a huge favor and make a video showing how to adjust timing on a single cylinder dirt bike engine? I am trying to adjust the timing on an XR200R and don't know where to begin, I'm a 2 stroke guy lol. Thanks

  • lol Ricky carmichaels bike :P

  • @TheAlexManVideos its true but it sint good for your tires when you ride in the round they will get round the nips but a really nice bike dude i have an honda cr85 i love it:D

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