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Thread: Bv350 clunk

  1. #1
    apriliaforum prov-nov
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    Bv350 clunk

    I have a 2016 BV350 with less than 3000 miles on it. When I start out,particularly fast starts I hear a clunking. It sounds like a loose motor mount or maybe some slack somewhere in the drive train. It's hard to tell from the drivers seat. Anybody have any ideas??
    Cheers, Warren
    16 Moto Guzzi V7 Stornello
    16 Piaggio BV 350
    70 Citroen DS21

  2. #2
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    One time clunk, or continued clunk? does it happen when engine is cold, or all the time? Does road conditions have any affect on clunking?

    Jerry

  3. #3
    apriliaforum Member Pinkscoot's Avatar
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    Is your top box tight?
    Italian scoots owned: 2003 Scarabeo 150, 1998 Italjet Velocifero, 2009 Vespa GTS 250, 2012 Vespa S50, 2007 BV 250, 1977 150 Sprint Veloce (future project) and Vespa ET2 (future project)

  4. #4
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    perhaps your rollers?

  5. #5
    apriliaforum prov-nov
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    Quote Originally Posted by spacetiger View Post
    One time clunk, or continued clunk? does it happen when engine is cold, or all the time? Does road conditions have any affect on clunking?

    Jerry
    Single clunk, any engine temp and road conditions aren't a factor. Only acceleration. Like if you have a car with a bad motormount and you torque up the engine in gear. The motor shifts and clunks. that kind of clunk
    Cheers, Warren
    16 Moto Guzzi V7 Stornello
    16 Piaggio BV 350
    70 Citroen DS21

  6. #6
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    Have you tried applying just the rear brake alone reasonably hard to see if you get a similar clunk from every thing shifting in the opposite direction? You also may want to try pushing and then pulling on the handlebars to verify its not the steering head bearing or handle bars shifting.

    Try removing the top case and emptying both the glove box and under seat storage area before going too far looking for mechanical issues so you can rule out a tool, flashlight, water bottle, etc rolling about.

    Have you modified the bike in any way? At 3,000 miles there are really no services aside from the run-in oil changes and possible the 2 year coolant and brake flushes that needed to be done. Oil changes are every 10,000 Kilometers/6,250 miles and belt/roller server at 20,000 Kilometers/12,500 miles so its nowhere close to needing belt or variator service eliminating the chance that the variator was not torqued back on correctly after you bought it especially since the BV 350 does not really benefit that much from changing to sliders so there was really no need to open the CVT case even for that.

    If its less than 2 years old and only has 3,000 miles on it you should not be having mechanical issues and should still be under full warranty from Piaggio so if its not something shifting about in the Top Case, etc personally I would let the dealer take care of it under the warranty.
    Last edited by Rockynv; 04-23-2018 at 07:35 AM.

  7. #7
    apriliaforum prov-nov
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    Well I got down there with my stethoscope today and the noise is definitely coming from the clutch area. No dealers close around and no other BV350's close around to listen to. It's running fine so I guess I'll just assume it's the nature of the beast until I find out different
    Cheers, Warren
    16 Moto Guzzi V7 Stornello
    16 Piaggio BV 350
    70 Citroen DS21

  8. #8
    apriliaforum prov-nov
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    My '13 doesn't make any such noises @ 3,500 miles. Something isn't right.
    '13 Piaggio BV350
    '11 BMW F650GS (twin)
    '12 KTM 450 XC-W
    '04 Ducati Multistrada 1000
    '09 Scarabeo 200 (wife's)
    '68 Suzuki KT120

  9. #9
    apriliaforum Member Pinkscoot's Avatar
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    pull the CVT cover and be sure that everything is in order. It could be a lot of things, you won't know until you look.
    Italian scoots owned: 2003 Scarabeo 150, 1998 Italjet Velocifero, 2009 Vespa GTS 250, 2012 Vespa S50, 2007 BV 250, 1977 150 Sprint Veloce (future project) and Vespa ET2 (future project)

  10. #10
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    I have a 2014 12,000 mi. Has had the same clunk since I got it new in 2016. No answer to why. I just try not to give it too much on take off. No issue otherwise.

  11. #11
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    Quote Originally Posted by Blitz243 View Post
    I have a 2014 12,000 mi. Has had the same clunk since I got it new in 2016. No answer to why. I just try not to give it too much on take off. No issue otherwise.
    the clunk is from the wet clutch, it happens every time you coast then hit the throttle ,

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