drive shaft noise

[funtodrive1]

HI, bought me a NT700 last week. end 2006 model with only 8200 k's on the clock. Looks like new, with full maintenance books, so with the Honda reputation, could not go wrong. I am driving mostly in city area (Sydney) and I notice some gear scraping noises at constant speed or slight slowing down when engine/gearbox gets warm. This noise is in every gear the same, so must be output related and even stays when clutch is pulled until very low speeds. I went back to the workshop where I bought the bike and they tell me this is normal noise with drive shaft systems. However I think it is quite noisy and I am not totally convinced. I found a website with forums, where somebody mentions that the 2006 models had some gear/drive shaft noise problems at this situation and that Honda has a solution for this which would have been fitted with the first maintenance of the bike. Not sure this would be valid for my bike as it is a late 2006 model. In the maintenance book is no indication there has been fitted or repaired something on the drive shaft. Does somebody know about this scraping/scratching noise and how much is acceptable? Mine is quite loud, definitely noticeable above the engine noise. Has somebody heard about this repair solution Honda has aftermarket fitted?

Kind regards, JO
Sydney

[Buzzin (^_^)]

Well, I am very sure the noise is not right. The shaft on the NTV is not audible at all and afaik the NT700 shouldn't be any different.
Please check the oil level in the shaft first. (instuction for NTV) undo the big plug on the side of the shaft and see if the oil reaches the hole. if not, replace the oil.
Undo the bottom plug and drain. Wipe of the metal bits on the bolt (it's magnetic) and make sure it's not too much. Srew the plug back in with a new washer.
Top up oil to the edge of the filler hole. Close the side plug (check the seal...if worn, replace it)

If the noise doesn't go away then, there might be some other things wrong...but I am no expert at that. Perhaps the lubrication of the actual shaft (the bit comming from the gearbox, going to the rear) isn't right, or maybe the gearbox itself needs fixing.

But considering the age (quite young) and low kms I would suggest you consult your Honda dealer for advice. Perhaps it's worth trying a different Honda dealer, just to get the info you need. At such a young age I would think the dealer would be willing to chip in on any repair costs, if not pay for the whole thing (if it was a manufacturing problem)

ps. I think this does brake a record for long distance support (well....if you can call it that)

ps2. Welcome to the forum Please come by often and have a chat...we tend to be a nice bunch of people

[McF]

As Buzzin says, it doesn't sound right.
My first thought, as with Buzzin, was check the final drive oil

I'm assuming the noise only appears when the bike is moving, have you tried it with the engine off and in neutral then in a gear with the clutch in (only try this on a quiet road when it is safe to do so)

It could potentially be a wheel bearing and or brake (perhaps a piece of grit between the pads and the disk, or something else rubbing on the disks.
Try putting your aNTy on the centre stand, while the rear wheel is off the ground, spin it around in neutral, then in gear with clutch in (you'll need an assistant)
then get your assistant to puch the rear down and therefore raise the front wheel, try spinning the wheel and listen for the noise

With so few miles on, it's unlikely to be much else.

If it is in the drive chain, there is a slim possibility it could be in the drive shaft or universal joints. Let's try and rule out the above first.

[funtodrive1]

Hi guys, thanks for the info.
As i bought the bike at a (mainly) kawa/Yamaha dealer and still have 3 months warranty on the bike I will first go to a Honda dealership to ask their opinion. If they can give me indication what the noise can be and what repair is needed and what costs it would take. Then I have to go back to the seller (kawa/Yamaha dealer) and discuss this to see if they can do this repair.
The noise is hardly noticeable at cold, but once the engine start warming up, it get louder to disturbing noise. irregular metal scraping noise. It occurs at every speed in every gear with same pattern. Once starting to warm up, the noise starts at driving constant speed. and gets a bit worse when slightly slowing down (coasting) When pulling the clutch it stays until full stop.
It must be something with the output geartrain as it is undependent from the gears and also when clutch applied.
I have to wait to investigate myself untill the dealer wants to do something.
to be continued,
Jo

[McF]

Jan 14, 2010 3:34:15 GMT 1 funtodrive1 said:

Hi guys, thanks for the info.
As i bought the bike at a (mainly) kawa/Yamaha dealer and still have 3 months warranty on the bike I will first go to a Honda dealership to ask their opinion.

Best option I think
It certainly doesn't sound right and if you want to get a warranty repair, you're best getting an expert opinion.

Good luck and please keep us posted with news of your progress.

[Markiewarkie]

I have metallic grinding noise coming from my shaft drive. It is loudest then you are decellerating. A bock of wood on the ear shows the exact location when running it in gear on the centre stand as the place where the 4 nuts hold the swing am to the final drive housing. I am pretty convinced that it is one of the 3 bearings in the final drive box.
I have taken the back wheel and final drive box off which came away with shaft. The UJ stayed in the swing arm. I have a replacement but the old or new one won't go on the end of the UJ far enough to be able to tighten the nuts. And ideas please ?

[Chaz]

Hi Markie,
Check BOTH splines of UJ are seated fully, (peel back rubber gaitor between bevel box & swing-arm to check)... ensure the ring spring on the final drive shaft spline is correctly located within the final drive socket... post result.