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TOPIC: 75 mx400b monoshock adjustment

75 mx400b monoshock adjustment 12 Aug 2017 02:04 #1

  • teemercer1979
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Looking to adjust the suspension on the bike. Notice when I sit on bike it sits kinda low. Where do I start at

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75 mx400b monoshock adjustment 12 Aug 2017 10:08 #2

  • Enduronut
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I don't have any personal experience in adjusting that particular shock, but I think you might find all that information in our down loadable data base > > >

1. "Tech Library" . . . (find the link near top of this forum's home page)
2. click on "Service Manuals" . . . .
3. then look for a Manual called "Monocross Service Manual" . . .
4. adjustments are discussed in section 9 of that manual.

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Last Edit: by Enduronut.

75 mx400b monoshock adjustment 13 Aug 2017 04:31 #3

  • RT325
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www.yamaha-enduros.com/index.php/worksho...cument.viewdoc&id=33
I had the 250 model in "75 but same suspension & apart from changing the spring or packing the spring up tighter i don't think it's adjustable. When i sold mine the next year the guy had the shock modified for more travel which sat it higher so must have shortened a spacer internally or left it out totally. Number 31[make that 28] in the pic in the link looks like a spacer. In the numbers down the side they call it a stopper. One other thing which probably isn't relevant but on XT550 models the Swing/arm would spread in the loop up to the shock if you went motocrossing them & had hard landings where they would bottom out. Would be noticeable if that was the case.

edit--not sure what pic i was looking at but first shock parts pic on the link it looks like No28 as the spacer.

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Last Edit: by RT325.
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