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2004 KTM 200sx Mystery Knock

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Hey all, first post, glad to be here!

Just got my first 2 stroke in a trade, it's a 2004 KTM 200sx. always been a 4 stroke guy, but I've done some time on some friends' yz125's and yz250's. Since day one, i though mine sounded like a bucket of marbles, especially on decel and idle, both with the clutch in and out. Here's a short clip of the test ride the first day i got it:

https://vid.me/XPgVP

to ease my mind, I rebuilt my crank, after finding a tiiiiny bit of up and down play. all of my bearings checked out, so I omitted replacing them since i don't have access to a machine shop. buttoned it back up, and fired it up.

https://vid.me/4gDWj

the noise has improved (i think), but I'm not sure if there's something else at play here. or maybe it's just a noisy bike. What do y'all think? 

many thanks

Adam

 

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I can't watch your video, old phone, and iPad, but I have had several, and still have a 200sx, excellent bikes, and lots you can do to make them rip.  Welcome to TT, lots of good info and guys here.

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All you need for crank bearings is a oven, no machine shop required. I would recommend checking your jetting just to b safe. 2ts can b noisy though.

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