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V4 Ducati North America (dna) Vibration Complaint

Discussion in 'Multistrada' started by Leo167, Dec 21, 2023.

  1. ‘also brought to my attention the odd amount of weights on the rear’

    It would seem your rear wheel is out of true and should be your first and easiest to check.
     
    • Agree Agree x 1
  2. Ahhhhh, that makes sense. Shit, sorry you're having this experience :(

    But there is good news! Like you said, disengaging the engine still results in the same issue, so it's balancing or something wasn't torqued up properly.

    Here is what I'd suggest in order for both effort and cost:
    • Visual check chain tension is uniform and in spec
    • Visual check tyres for any bulges or oddities
    • Feel for any play in the wheels
    • Check rear wheel alignment (if normal swingarm, think you have a v4s which is singe sided? Ignore if so)
    • Check and clean brakes thoroughly, remove the calipers, clean the bobbins to ensure the floating disks are floating
    • Have the wheel balancing checked by independent garage
    That's a good start, given this continues without engine makes it much easier to narrow down. If none of the above bare fruit, as others have said, it might be worth using an independent garage.

    As for the video, I suggested the rolling road, it's an expensive option just to check an issue, but it replicates close enough to the environment where the issue occurs. So maybe it'll highlight something.

    Regarding DNA, they will have a set tolerance for shit like this, they'll dismiss before accept. It's a modern dealer with a big daddy dealer group owning them.

    Good luck!
     
  3. @Leo167 do you have TPMS fitted?
     
  4. Agreed will follow up with Dealer #2 first, then go from there.

    I've experienced that on other bikes when it was time to replace the OEM's Bad vibes at high speed, bike all of a sudden drifts hard to the left, etc... but I have no recollection of having a bad tire or wheel on a new bike especially one with forged rims. Not totally impossible to get a bad OEM tire, however it seems Ducati has their heads stuck so far up their arses that they are ignoring the elementary
     
    • Visual check chain tension is uniform and in spec = All checks as good, no unusual tight spot to flag
    • Visual check tyres for any bulges or oddities = Did this initially but difficult to see W/O a center stand or paddock stand ( have one now will give it more time when I have time)
    • Feel for any play in the wheels = seems good but will explore again now that I have a stand
    • Check rear wheel alignment (if normal swingarm, think you have a v4s which is singe sided? Ignore if so) = Yes single sided Pikes Peak
    • Check and clean brakes thoroughly, remove the calipers, clean the bobbins to ensure the floating disks are floating = this is a brand new bike but will check anyway, when you say bobbins do you mean the rivets between the rotor and carrier?
    • Have the wheel balancing checked by independent garage = Will follow up with Dealer #2 first since the tech did notice something and also have them check for out of round rubber (just in case I missed something) and excessive runout for the wheels.
    As for the video, I suggested the rolling road, it's an expensive option just to check an issue, but it replicates close enough to the environment where the issue occurs. So maybe it'll highlight something. = Agreed, thought about this after and wouldn't hurt to try strapping on a go pro and give it a shot

    Regarding DNA, they will have a set tolerance for shit like this, they'll dismiss before accept. It's a modern dealer with a big daddy dealer group owning them. = They certainly let you that, and stonewall you to death when you ask them the "why" questions... I swear it was a recording, got the "At this time the bike is operating normally" answer on questions that were not directly relevant to the issue...... Just weird

    Anyway Thanks for the advice


    Negative, but in my opinion for $30K should of came with it as well as heated grips but thats a gripe for another topic....lol
     
    • Useful Useful x 1
  5. @Leo167 considering it's a new bike. Then yea, just run round the front discs to make sure the bobbins (rivets) can rotate freely between the inner and outer parts. I doubt it's the cause as it would give different feedback and not as violent as you describe, but it's worth a 2 minute check.

    Hopefully the second place comes through and it's a simple weight balance issue on the wheels!
     
    • Like Like x 1
  6. Don’t you have the lemon law over there?
     
  7. Thought you'd made that up, Google put me right :bucktooth:
     
  8. Lol.. I'm willing to investigate any suggestion given, crossing fingers with Dealer #2
     
    • Like Like x 1
  9. LoL... yeah and in my state, New motorcyles are covered with this law and have 2 years to submit a claim from the date of delivery
    So I'll go through the motion with seeing how the whole tire / wheel balance thing goes on my dime- but if it doesn't resolve the issue- I'll pull out the lemon law card.
     
    • Like Like x 2
  10. Whilst I’m not suggesting you should do the following, if it was me, I’d do the following:

    Rear wheel off and taken to a good tyre fitter, they should be able to tell if the wheel is balanced in seconds. There’s a chance the tyre could be fitted incorrectly from the factory. The number of weights may point towards that.

    There's a chance something isn’t seated correctly. I’d be going through a process of slackening bolts/nuts off, making sure everything is aligned and then re-torquing to spec. I’d start with the front forks, triple clamps and move backwards.

    As a last resort, I’d do the same with the engine mounts.
     
    • Like Like x 3
  11. Will absolutely be part of my to do list- Thank you for the advice
    Funny thing- what you listed were items that a dealership would run through, many many moons ago- but I guess times change and the revolution of the kiosk and self check-outs were also adopted by dealerships- “hey you have an issue with your brand new bike that’s still under warranty, fix it yourself” lol
     
  12. If you take the wheel and tire off to have balance checked, take it to an auto tire place... Firestone, Discount Tire or the like. There are a lot of bike shops that do not have the adapter, for their tire machine, to balance single sided swingarm wheels
     
    • Like Like x 1
  13. Been thinking about this, might be worth seeing if you can replicate this in fifth gear, if it happens at the same revs but at a lower road speed it could point to a non chassis problem, ie engine or gearbox problem. inversely if it happens at higher revs but at the same speed it points to the chassis.
     
    • Like Like x 1
  14. Thanks that would save me some grief… I’ll make sure to ask if they are equipped to service wheels for single sided swing arms, if not off to Firestone
     
  15. Hmm never tried that- I kinda just did the pull in the clutch thing when it was happening, the vibes remained with the engine disengaged until it dropped to the speed where it would stop, but I’ll give that a shot but go to 4th, 5th May get to the threshold speed as well with same revs
     
  16. Just a thought but, have you had tyre pressure sensors fitted retrospectively and not had the tyres re-balanced?
     
    • Like Like x 1
  17. Not an easy thing to use. I tried once with a car.
     
  18. As above, surely if it’s a revs thing then it would do in 2, 3, 4, 5 and 6. So you can get a dealer to try at legal speeds, given what you are asking them to do is try at illegal ones.
     
  19. Nah, still have the standard valves
     
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