Modern Vespa : Grinding noise at initial acceleration

Grinding noise at initial acceleration

OP johnryanhebert UTC details Member 2015 Vespa Primavera 150 Joined: UTC Posts: 21 Location: Los Angeles
OP johnryanhebert Member 2015 Vespa Primavera 150 Joined: UTC Posts: 21 Location: Los Angeles	UTC quote Hi friends, I noticed a peculiar noise today when I was riding today. I hear a quick grinding noise, and feel a slight shutter when I first start out at 0mph/kph and begin accelerating. Everything is perfectly fine after that. I'm wondering what could be possible causes? I'm riding a 2015 Primavera with about 5,000 mileage. Has anybody experienced this before? Cheers, John

Hachi UTC details Ossessionato 2005 GT 200 Joined: UTC Posts: 2083 Location: Montgomery,Alabama
Hachi Ossessionato 2005 GT 200 Joined: UTC Posts: 2083 Location: Montgomery,Alabama	UTC quote It sounds like dust has accumulated in the clutch bell. You can blow it out with compressed air. She's growling at me!

OP johnryanhebert UTC details Member 2015 Vespa Primavera 150 Joined: UTC Posts: 21 Location: Los Angeles
OP johnryanhebert Member 2015 Vespa Primavera 150 Joined: UTC Posts: 21 Location: Los Angeles	UTC quote Hachi wrote: It sounds like dust has accumulated in the clutch bell. You can blow it out with compressed air. She's growling at me! Thanks Hachi! I tried to google this and didn't find that result. I'll give this a go and see how it works. I should probably own some compressed air... Hopefully, that's what is going on. John

Miguel UTC details Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California
Miguel Veni, Vidi, Posti 2009 GTV250 (Gone), 2003 Inder trailer (also gone), 2001 BMW R1100RT Joined: UTC Posts: 5707 Location: Santa Cruz California	UTC quote I found that simply blowing the dust out didn't work for me. I always pull the transmission cover of and scuff up the inside of the clutch bell with 180 grit sandpaper. Best Miguel ⚠️ Last edited by Miguel on UTC; edited 1 time

judy UTC details World Traveler 2007 LX150 Daring Plum Leonardo Da Vespa Joined: UTC Posts: 29303
RIP judy World Traveler 2007 LX150 Daring Plum Leonardo Da Vespa Joined: UTC Posts: 29303	UTC quote +1 on the sandpaper. That should help.

Ironfoot UTC details Molto Verboso '07 GTS 250 - sold Joined: UTC Posts: 1337 Location: England
Ironfoot Molto Verboso '07 GTS 250 - sold Joined: UTC Posts: 1337 Location: England	UTC quote Heh, it comes up here from time to time. There's an entry in the Wiki: FAQ: Shudder, graunching noise on take-off? Sealion? I doodled this a month or two back while procrastinating about designs for the ten year anniversary... Positive

greasy125 UTC details Sergeant at Arms Weird 80's Vespas & Cool Vintage Lambrettas Joined: UTC Posts: 15090 Location: The state of insanity, SoCal
greasy125 Sergeant at Arms Weird 80's Vespas & Cool Vintage Lambrettas Joined: UTC Posts: 15090 Location: The state of insanity, SoCal	UTC quote 5K, sounds like you need a trans service. pull the cover and take it all apart, inspect the components, blow out the dust, service the clutch friction surfaces. you're kind of in the realm of possibly needing a belt & rollers, but you could be okay with just blowing everything out really well and continuing on. best, -greasy

wobbly wheels UTC details Addicted GTS Super Black 2011 Joined: UTC Posts: 802 Location: Bedfordshire, England, UK
wobbly wheels Addicted GTS Super Black 2011 Joined: UTC Posts: 802 Location: Bedfordshire, England, UK	UTC quote I just started getting this the other day... But only on hard acceleration from a stand still...Another job for the weekend

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