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Discussion Starter #1
Hi folks,

I started noticing a clunking noise when going from stop and when accelerating from low revs. It's a 05 dl1000 with 64k.

I checked to see if anything was loose but alls good. The noise seems towards front and probably the left side. I've heard stories of loose magnets of the rotor/stator but I don't have any charging issues.

Any and all help is appreciated!



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Have you checked both your front brake calipers for release? I suggest that you lift the front end off the ground, spin the front wheel and see if any noise can be heard. Remember to apply the front brakes prior to spinning the wheel. You may hear the scrap of brake pads against the rotors. If one of the caliper are not releasing, you should be able to hear the knock as it releases. Normally lube required on the sliding pins. Oh and if you ask how to lift the front wheel off the ground... make use of the search function, there are many threads on the subject.
If you think the sound is from the left engine cover, then by all means check the magnets. Normally your ear against a plank or screw driver that is against the cover will let you localize the sound. For the magnets take voltage readings at different rpms. Let us know if you find anything amiss.
 

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Something else to check is the steering head bearings for any play. Could even be a faulty shock. Basically a process of elimination.
 

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Discussion Starter #4
Hi gert,

Thanks. I checked the front wheel calipers as you mentioned and I see that the left caliper doesn't completely release and drags a bit. I don't hear any noise when I release the brake but rather when I apply it.

I checked the brake disc and it looks like the left one has some sliding movement in it. As in when you apply the brakes the caliper gets hold of the floating disc but the disc moves a bit. The mounting is secure it's just the floating part.

I am gonna clean the calipers and get new pads. So i chuck the caliper?
Appreciate the help!

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The calipers are designed to slide a bit, as they takes up the slack in the braking process, hence the use of sliding pins. No need to replace the calipers if they are still serviceable. Simply refurbish both as a set for equal braking ability. Check that the pads are in good condition. The caliper bolts have a tendency of coming lose / falling out, so ensure they are correctly torqued.
Brockie's suggestion of checking the condition of the chain and sprockets, should also be done. Look for hooked / worn sprocket teeth, especially on the front sprocket.
 

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Very likely worn cush rubbers in the sprocket carrier, if original bearings I would also get them replaced as well.
 

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Discussion Starter #11
The calipers are designed to slide a bit, as they takes up the slack in the braking process, hence the use of sliding pins. No need to replace the calipers if they are still serviceable. Simply refurbish both as a set for equal braking ability. Check that the pads are in good condition. The caliper bolts have a tendency of coming lose / falling out, so ensure they are correctly torqued.
Brockie's suggestion of checking the condition of the chain and sprockets, should also be done. Look for hooked / worn sprocket teeth, especially on the front sprocket.
It's not the calipers sliding but more of the brake disk rotating a bit. Do not know if some play is to be expected.

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Discussion Starter #12
Very likely worn cush rubbers in the sprocket carrier, if original bearings I would also get them replaced as well.
Yeah I am due on the sprocket, chain and the drive rubbers.
Front is more worn than the rear and now I get the idea that all the slack might be hurting me.

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Yeah I am due on the sprocket, chain and the drive rubbers.
Front is more worn than the rear and now I get the idea that all the slack might be hurting me.
Front sprocket is likely where the noise and probably a bit of a vibration/clunk is coming from. When the teeth get worn a bit the chain rollers don't release cleanly under load. Especially at lower speeds in lower gears when accelerating. New chain, sprockets, and hub cushions will be money WELL spent!
 

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My 2013 in 1st gear under minimal load would clunk. It sounded like a kinked link in the chain. My fix was a bit spendy costing me several thousand dollars but no more "clunking".
 

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Discussion Starter #18
My 2013 in 1st gear under minimal load would clunk. It sounded like a kinked link in the chain. My fix was a bit spendy costing me several thousand dollars but no more "clunking".
What was wrong and what u fix?
Sounds expensive.

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Discussion Starter #20
After checking and rechecking things over and over and not being ably to find the source of the clunking my fix was buying very clean low mileage 2006 BMW R1200GS. I also gained about 40HP in the deal.
Lol

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