Primavera 150 3V - Torque
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Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 353
Location: Guatemala
Thu Feb 13, 2020 5:09 am quote
Hi, I just bought a Primavera 150 3v Euro4 from 2015, it has 2,250 miles and last service was 5 years ago at 600 miles.

I have been reading a lot here and it seems that I should start by changing the rollers to lighter ones. Do you think that the Pollini 12.3 grms should work, should I also install the polini Contrast Spring . I am trying to obtain a bit more torque. I am also installing a side stand.
Any other recommendations.
Thank you!
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 353
Location: Guatemala
Mon Feb 17, 2020 5:53 am quote
Anyone?
Ossessionato
Yamaha Tricity 155 Urban 2019 - MV Agusta 125 RS 1956 - Moto Guzzi Airone 250 Sport 1951
Joined: 21 Jul 2007
Posts: 2555
Location: Latina (Italy)
Mon Feb 17, 2020 5:59 am quote
If you install the side stand also put the safety switch ... careful that some of these objects for Vespa have the return with too sensitive spring and with a small vibration they could trip making the Vespa fall.
Ossessionato
BV350, Primavera 150, Yamaha Zuma 125
Joined: 06 Jun 2013
Posts: 2953
Location: The Twin Cities of Minneapolis/Saint Paul, Minnesota
Mon Feb 17, 2020 6:27 am quote
I put 12.5g rollers in my new 2019 Primavera 150. No contra spring or other changes. I've noticed a slight improvement in acceleration, maybe enough to justify the rollers, but I don't see a need to go whole hog on other performance parts. Oakwood Joe did the same with the rollers in his Sprint 150. I believe he'll concur with me on the difference it made.

I put the side stand (spring loaded Vespa brand) on the Primavera, too. I really don't use it much at all. The center stand works just as well and isn't really any harder to use. With crash rails installed the center stand is even hard to reach. Next time I wouldn't spend the money on a side stand.
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 353
Location: Guatemala
Mon Feb 17, 2020 7:38 pm quote
Thank you both!!!
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Granturismo 218
Joined: 04 Feb 2013
Posts: 5781
Location: NWAOK
Wed Feb 19, 2020 5:22 pm quote
The torsion controller puts a bit of preload on the stock contra spring. It's not quite like switching to the Malossi spring, but it's a little better than stock. With such low mileage, the odds are that the stock spring still has plenty of bounce.
One thing about the Primavera and Sprint is that Piaggio installs two different transmissions, one is the Italian one, with 134mm clutch, like the other Vespas, and the other one is the Asian one, with 125mm clutch. They have shipped various configurations all over the world, so it's anyone's guess what's in there. Some of the US 3V engines had the Asian (Vietnam) engine, and others had the Italian one.
Member
Joined: 26 Jun 2019
Posts: 18

Thu Feb 20, 2020 7:30 am quote
I installed a malossi multivar kit and the matching half pulley + Kevlar belt. The bike drives like a totally different one compared to a stock one in terms of accelerating. Power is available at lower RPMs and keeps pulling hard until decent city speeds.

Mine in a sprint 3V non-iget and I have 0 regrets with the variator and half pulley upgrades. I find the difference significant enough to the point that i find it tough to overtake and accelerate hard when driving stock 3Vs.
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 353
Location: Guatemala
Fri Feb 21, 2020 5:08 am quote
Motovista wrote:
The torsion controller puts a bit of preload on the stock contra spring. It's not quite like switching to the Malossi spring, but it's a little better than stock. With such low mileage, the odds are that the stock spring still has plenty of bounce.
One thing about the Primavera and Sprint is that Piaggio installs two different transmissions, one is the Italian one, with 134mm clutch, like the other Vespas, and the other one is the Asian one, with 125mm clutch. They have shipped various configurations all over the world, so it's anyone's guess what's in there. Some of the US 3V engines had the Asian (Vietnam) engine, and others had the Italian one.
I ended up buying the Malossi Spring and the 12.5 rollers. My Primavera is 150cc but is not US vespa since it doesn't have the pod indicators, but not sure which clutch it has...
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