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mobil1
Considerably Faster than Yeow!
Considerably Faster than Yeow!
Joined: 29 Apr 2010
Posts: 576
Location: Berkshire
PostPosted: Wed Dec 29, 2021 12:45 pm    Post subject: Loose play in swingarm. Reply with quote

Hi Gang.

I've a problem I think. When I've got the rear wheel off the ground I can lift the swingarm by about 5mm.

Is this natural or the suspension needs a set up? Or bearings?

I've had it all apart and checked things out and have also fitted a zx12r shock in. It's doing the same as with the new shock as it did with the old.

Help!! Pretty please.
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bunk
Scooter Boy
Scooter Boy
Joined: 04 Aug 2021
Posts: 88
Location: Seattle
PostPosted: Wed Dec 29, 2021 3:03 pm    Post subject: Reply with quote

Either a bushing or bearing gone bad. Start cycling the arm and find where movement stops. Usually the pivot at the frame but sometimes the bushing where the dogbones connect.

You might need another set of eyes to pinpoint it.
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mobil1
Considerably Faster than Yeow!
Considerably Faster than Yeow!
Joined: 29 Apr 2010
Posts: 576
Location: Berkshire
PostPosted: Wed Dec 29, 2021 4:11 pm    Post subject: Reply with quote

I found the issue. I hadn't torqued one of the dog bones up tight. Either the bolt or the nut seem to jump back a thread.
Luckily I had a spare bolt from a scrapper. All good now.

Cheers for the info tho. That will come in handy for sure at a later time. thumbsup
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Scooter Boy
Scooter Boy
Joined: 04 Aug 2021
Posts: 88
Location: Seattle
PostPosted: Wed Dec 29, 2021 6:25 pm    Post subject: Reply with quote

I had the exact thing happen on my fz1(fazer) when i put a bmw shock on, it got hung up on the start of the major diameter. I thought i was stretching the bolt out when torquing it, and then it went pop and it tightened up.

Motorcycle engineering if far better and tighter than average car engineering.
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