Rattlecan P200
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Hooked
61 VBB and 79 P200
Joined: 01 Jan 2018
Posts: 138
Location: Folsom CA
Wed May 12, 2021 12:30 pm quote
Searches have found suggestions on this all over the place, so I apologize if the answer is already available...

My P200 rattles a bit at idle unless I pull the clutch lever...then it is sounding nice and tight. I have no idea what it's doing at speed but she runs great. Oil levels are good, there are no leaks anywhere (anywhere!). I put in all new seals and gaskets, and a first over piston about 1,000 miles ago and the bearings and Christmas tree all were nice and tight (it has 7k mies) at that time.

Are we talking new bearings? Gear shim? Am I paranoid and all 40+ Vespas do this?
Hooked
Rat 2003 Stella 2T; 1979 P125x (in pieces, out for paint)
Joined: 12 Sep 2015
Posts: 306
Location: Madtown
Wed May 12, 2021 12:44 pm quote
In my experience many rattles can be traced back to the glovebox, and the crap that I throw into it.
Hooked
61 VBB and 79 P200
Joined: 01 Jan 2018
Posts: 138
Location: Folsom CA
Wed May 12, 2021 1:48 pm quote
yackee wrote:
In my experience many rattles can be traced back to the glovebox, and the crap that I throw into it.
Yeah, if only this was so easy But its definitely something in the engine or clutch, probably the engine. Honestly it doesnt bother me Im just trying to understand if its something I should let go of caring about. The scooter runs great.
bodgemaster
63 GL, 76 Super (x 2), 74 Primavera (x 2), 06 Fly 150
Joined: 26 Sep 2013
Posts: 5833
Location: So Cal
Wed May 12, 2021 2:07 pm quote
Rattles are super annoying and can be hard to chase down.

Some places to check:

Glovebox
Centerstand
Fan cover
Clutch
Mudguard
Loose floor rail
Front brakes
Worn shift tubes

Good luck
Addicted
'79 P200, '74 VBC Super, '80 100 Sport (sold to new home!)
Joined: 23 Jan 2012
Posts: 752
Location: 32 37' 40" N, 117 2' 53" W
Wed May 12, 2021 3:38 pm quote
My P just developed a new one -- seems to be coming from under the kickstarter area somewhere. super annoying and I was bending down at every stoplight the other day to listen. the glovebox area rattles I attribute to the shyte thats in there, the headset buzzes a bit sometimes too... but its a shit show in there cause I've never touched the wiring and I need to get in and do some clean up I know. All the little lights and indicators work and once I touch them they probably won't anymore so I just stay away till needed.

I looked around under the scoot and everything seems tight. friggin annoying but I know 42+ year old scoot and my ineptitude also have more than a bit to do with it.

let us know what you find.
Enthusiast
58 VBA 79CT90
Joined: 25 Dec 2019
Posts: 55
Location: Chico CA
Wed May 12, 2021 8:22 pm quote
My guess, Pressure plate spring is letting the plate move just enough to rattle. Goes away when clutch is engaged. Happened to me.
Enthusiast
1959 Allstate w P125x Engine
Joined: 29 Nov 2020
Posts: 75
Location: Los Angeles
Fri May 14, 2021 7:48 pm quote
Does it sound a little like a diesel engine at idle, before you pull the clutch?
Can you post a YouTube video of that sound?
Hooked
61 VBB and 79 P200
Joined: 01 Jan 2018
Posts: 138
Location: Folsom CA
Sat May 15, 2021 1:20 pm quote
This is how my P200 sounds...there are slight variations during the video from me pulling the clutch lever. This video was shot after the engine was warmed up by a ride around the block.

Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 2262
Location: Veria, Greece
Sat May 15, 2021 1:27 pm quote
What type of clutch is in there?? If it's an 8 spring, Cosa type, it's normal. They rattle...
Enthusiast
1959 Allstate w P125x Engine
Joined: 29 Nov 2020
Posts: 75
Location: Los Angeles
Sat May 15, 2021 7:34 pm quote
SaFiS wrote:
What type of clutch is in there?? If it's an 8 spring, Cosa type, it's normal. They rattle...
They do, until you pull the clutch. That's a solid clue.
Hooked
61 VBB and 79 P200
Joined: 01 Jan 2018
Posts: 138
Location: Folsom CA
Sun May 16, 2021 8:24 am quote
SaFiS wrote:
What type of clutch is in there?? If it's an 8 spring, Cosa type, it's normal. They rattle...
It's stock...gonna double-check it today or tomorrow, but the noise seems to be coming out of the bottom end. I'm worried the main bearings are going, but I don't know what that would sound like.
bodgemaster
63 GL, 76 Super (x 2), 74 Primavera (x 2), 06 Fly 150
Joined: 26 Sep 2013
Posts: 5833
Location: So Cal
Sun May 16, 2021 12:51 pm quote
I think what youre hearing might be the input shaft (Xmas tree) bearing.
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