Polini 140.0210 80cc kit for 50 4t 4v
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Member
Primavera 50 4t '15 "Il buono", Benelli Pepe50 '10 "Il brutto", LX 50 2t '10 "Il cattivo"
Joined: 12 Aug 2016
Posts: 38
Location: Moscow, Russia
Mon Oct 10, 2016 5:59 am quote
Recently I've kitted my '15 Primavera 50cc 4t 4v with 80cc kit.

I went with Polini (part number 140.0210) 80cc kit, not as usually fellows with Malossi. Also installed/done:
- Malossi CDI
- Malossi double spounge red filter
- 75 jet. The jet itself was the part of Polini kit.
- 8.5 g rollers
- intake derestricted according to Polini kit instruction.
- varioring was already removed.
This setup was recommended to me by Vespa mechanic which is referred as best Piaggio mech in Moscow, Russia. Job was done at his workshop.

Let me give some comments on Polini kit vs Malossi, and see pictures below:
- Polini cylinder is aluminum - same as Malossi. I think that cylinders are almost same.
- the shape of the piston is very different. The weight of the piston is 62 g. (How much is Malossi? Don't know). Don't know if compression ratio is different.
- Polini provides 75 jet as part of the kit.
- Polini Kit is 8-10% cheaper than Malossi, at least on SIP.
- I've installed Polini 140.0210 kit for 50 4t 4v. It doesn't fit 4t2v. Polini has 140.0202 cast iron 80 cc kit for 4t2v, which doesnt fit 4t4v. Malossi fits both 4v and 2v.

Well, with the kit I feel that my Primavera accelerates as fast as my derestricted LX 50 2t, but much more smooth and comfortable, particulary in 0-40 km/h range.
I didnt test top speed and full throttle acceleration, cause I'm in the process of braking in yet.

P.S. Don't ask about 2t engine on the package picture. I think they just use this picture for any packages.


Also rain poncho, scooter cover and letherette grips.


From bottom


from top


from top


from side


piston


piston weight


piston from bottom


gaskets


75 jet and additional air intake tubes


package

Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2080
Location: Googleville
Wed Oct 12, 2016 7:58 pm quote
Nice. Informative write up.
Member
typhoon,pgo metro
Joined: 21 Sep 2020
Posts: 20
Location: montreal
Fri Oct 09, 2020 4:46 pm quote
Re: Polini 140.0210 80cc kit for 50 4t 4v
TweeZ4 wrote:
Recently I've kitted my '15 Primavera 50cc 4t 4v with 80cc kit.

I went with Polini (part number 140.0210) 80cc kit, not as usually fellows with Malossi. Also installed/done:
- Malossi CDI
- Malossi double spounge red filter
- 75 jet. The jet itself was the part of Polini kit.
- 8.5 g rollers
- intake derestricted according to Polini kit instruction.
- varioring was already removed.
This setup was recommended to me by Vespa mechanic which is referred as best Piaggio mech in Moscow, Russia. Job was done at his workshop.

Let me give some comments on Polini kit vs Malossi, and see pictures below:
- Polini cylinder is aluminum - same as Malossi. I think that cylinders are almost same.
- the shape of the piston is very different. The weight of the piston is 62 g. (How much is Malossi? Don't know). Don't know if compression ratio is different.
- Polini provides 75 jet as part of the kit.
- Polini Kit is 8-10% cheaper than Malossi, at least on SIP.
- I've installed Polini 140.0210 kit for 50 4t 4v. It doesn't fit 4t2v. Polini has 140.0202 cast iron 80 cc kit for 4t2v, which doesnt fit 4t4v. Malossi fits both 4v and 2v.

Well, with the kit I feel that my Primavera accelerates as fast as my derestricted LX 50 2t, but much more smooth and comfortable, particulary in 0-40 km/h range.
I didnt test top speed and full throttle acceleration, cause I'm in the process of braking in yet.

P.S. Don't ask about 2t engine on the package picture. I think they just use this picture for any packages.
so!? your thought after 4 years? and did you get to compare it with malossi kit? im into the process
Member
typhoon,pgo metro
Joined: 21 Sep 2020
Posts: 20
Location: montreal
Sat Jan 02, 2021 9:55 pm quote
Re: Polini 140.0210 80cc kit for 50 4t 4v
monttyphoon wrote:
TweeZ4 wrote:
Recently I've kitted my '15 Primavera 50cc 4t 4v with 80cc kit.

I went with Polini (part number 140.0210) 80cc kit, not as usually fellows with Malossi. Also installed/done:
- Malossi CDI
- Malossi double spounge red filter
- 75 jet. The jet itself was the part of Polini kit.
- 8.5 g rollers
- intake derestricted according to Polini kit instruction.

- varioring was already removed.
This setup was recommended to me by Vespa mechanic which is referred as best Piaggio mech in Moscow, Russia. Job was done at his workshop.

Let me give some comments on Polini kit vs Malossi, and see pictures below:
- Polini cylinder is aluminum - same as Malossi. I think that cylinders are almost same.
- the shape of the piston is very different. The weight of the piston is 62 g. (How much is Malossi? Don't know). Don't know if compression ratio is different.
- Polini provides 75 jet as part of the kit.
- Polini Kit is 8-10% cheaper than Malossi, at least on SIP.
- I've installed Polini 140.0210 kit for 50 4t 4v. It doesn't fit 4t2v. Polini has 140.0202 cast iron 80 cc kit for 4t2v, which doesnt fit 4t4v. Malossi fits both 4v and 2v.

Well, with the kit I feel that my Primavera accelerates as fast as my derestricted LX 50 2t, but much more smooth and comfortable, particulary in 0-40 km/h range.
I didnt test top speed and full throttle acceleration, cause I'm in the process of braking in yet.

P.S. Don't ask about 2t engine on the package picture. I think they just use this picture for any packages.
so!? your thought after 4 years? and did you get to compare it with malossi kit? im into the process
Beside the weight ,wich is 69 grams vs 62 for the polini ,there is supposed to be .1 in favor of the compression ratio of the polini 1/ 11.5 vs 1/11.6.
7 grams is non negligeable,wonder if it will shake a bit more than the polini since the crankshaft is a bit more unbalanced.but general quality of malossi made me go for it.
And that pict of your craked cylinder troubled me a bit.





Member
typhoon,pgo metro
Joined: 21 Sep 2020
Posts: 20
Location: montreal
Sat Jan 02, 2021 9:56 pm quote
Malossi instruction info



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