A worrisome clank/clunk

2662 Views 9 Replies 7 Participants Last post by Dern, 5 mo ago

Jack Subrosa

Discussion Starter · Apr 7, 2022

I'm getting a worrisome clank. I thought it was coming from the rear of the bike, but my hearing is not what it once was. I couldn't find anything loose back there. The Norden 901 FB page has a couple of guys that found their steering head bearings to be loose. Anybody had the same problem (or heard the same noise), and if so has anyone tried re-torquing the steering head bolt? Mine seems to be torqued correctly, but now that those other guys on FB made mention of the loose bearings, that is what the sound sounds like.

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Black99s

· #2 · Apr 7, 2022

Check your rear shock. In garage just push down forcefully on the seat and release. If it pops back up fast with a ‘clank’ your shock has lost all oil.
Steering head bearings are easily checked. Front wheel has to be off the ground. Bars should no slam to steering stop with an easy push from centre. Smooth with a small amount of drag.

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Jack Subrosa

Discussion Starter · #3 · Apr 7, 2022

Thanks. Slow recovery and no clank when the rear is depressed forcefully. Seems to be working fine. And I have a 'slam' when the handlebars are released with front wheel off the ground. Been adding risers and didn't even think to use that test. The book calls for 18 NM/13.31lbs, or as you pointed out, till I get a small amount of drag. I'll re-torque it today.

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Black99s

· #4 · Apr 7, 2022

If you have added a centre stand, oftentimes they bang around a lot.

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Marko G

· #5 · Apr 9, 2022

Jack Subrosa said:
I'm getting a worrisome clank. I thought it was coming from the rear of the bike, but my hearing is not what it once was. I couldn't find anything loose back there. The Norden 901 FB page has a couple of guys that found their steering head bearings to be loose. Anybody had the same problem (or heard the same noise), and if so has anyone tried re-torquing the steering head bolt? Mine seems to be torqued correctly, but now that those other guys on FB made mention of the loose bearings, that is what the sound sounds like.

I checked my front end today, with the front wheel off the ground, there was a bit of movement in the head bearings back and forth. Found the steering head nut rather light on tension, after tightening it up and going for a ride all seems good now.

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romartineznadal

· #6 · 10 mo ago

Marko and Jack
Following up on your front end clunk/loose feeling issue. I have it too....
was it fully resolved by re-torqueing the steering head nut?
thanks in advance

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nullptr

· #7 · 10 mo ago

I've noticed my tool kit clanks quite a bit over bumps. It's located inside the left rear bodywork panel.

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DarkWhiteChocolate

· #8 · 10 mo ago (Edited)

Tool kit, Kickstand, Chain, license plate, Junk in the trunk(luggage)?

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romartineznadal

· #9 · 10 mo ago

DarkWhiteChocolate said:
Tool kit, Kickstand, Chian, license plate, Junk in the trunk(luggage)?

I wrapped the loose tools in a little bubble wrap inside the nylon pouch and the tool clunk disappears. but my front end still feels loose. I need to check the Steering head nut. Anybody else has had loose steering head nut?

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Dern

· #10 · 5 mo ago

romartineznadal said:
Marko and Jack
Following up on your front end clunk/loose feeling issue. I have it too....
was it fully resolved by re-torqueing the steering head nut?
thanks in advance

Not sure if you guys have resolved this yet, however there is a known issue with the fork that does this, 890's are the same. A suspension shop can sort it.

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