Modern Vespa : Looking at a 2002 Vespa ET4

Looking at a 2002 Vespa ET4

OP Mikey007 UTC details Enthusiast 2006 Fly 150 Joined: UTC Posts: 97 Location: So. Calif / L.A. Harbor Area
OP Mikey007 Enthusiast 2006 Fly 150 Joined: UTC Posts: 97 Location: So. Calif / L.A. Harbor Area	UTC quote anyone have one? can I upgrade it with Malossi Variator kit?

Slowpoke UTC details Hooked 1952 allstate (early), 1958 allstate, 2009 S150, 2001 ET2 Joined: UTC Posts: 226 Location: CT
Slowpoke Hooked 1952 allstate (early), 1958 allstate, 2009 S150, 2001 ET2 Joined: UTC Posts: 226 Location: CT	UTC quote I don't know ⚠️ Last edited by Slowpoke on UTC; edited 1 time

OP Mikey007 UTC details Enthusiast 2006 Fly 150 Joined: UTC Posts: 97 Location: So. Calif / L.A. Harbor Area
OP Mikey007 Enthusiast 2006 Fly 150 Joined: UTC Posts: 97 Location: So. Calif / L.A. Harbor Area	UTC quote Slowpoke what do you mean go bigger? US model I recommend upsizing the carb jet first.

Outsider UTC details Hooked ET 50 GTI250ie Sprint 150 Joined: UTC Posts: 339 Location: Royal Oak MI
Outsider Hooked ET 50 GTI250ie Sprint 150 Joined: UTC Posts: 339 Location: Royal Oak MI	UTC quote US model I recommend upsizing the carb jet first. How much more speed would this get me? I have two ET4's they go about 65 stock.

Slowpoke UTC details Hooked 1952 allstate (early), 1958 allstate, 2009 S150, 2001 ET2 Joined: UTC Posts: 226 Location: CT
Slowpoke Hooked 1952 allstate (early), 1958 allstate, 2009 S150, 2001 ET2 Joined: UTC Posts: 226 Location: CT	UTC quote 65 to indicated is not a true 65. ⚠️ Last edited by Slowpoke on UTC; edited 1 time

greasy125 UTC details Sergeant at Arms Weird 80's Vespas & Cool Vintage Lambrettas Joined: UTC Posts: 15121 Location: The state of insanity, SoCal
greasy125 Sergeant at Arms Weird 80's Vespas & Cool Vintage Lambrettas Joined: UTC Posts: 15121 Location: The state of insanity, SoCal	UTC quote Mikey007 wrote: anyone have one? can I upgrade it with Malossi Variator kit? yes. the malossi or the polini are both great choices. there's mention of changing the jetting in the carburetor but I would suggest only increasing the idle jet and not the main. this is also dependent on which carb yours came equipped with, but for the time being, I really wouldn't worry much about it.

Outsider UTC details Hooked ET 50 GTI250ie Sprint 150 Joined: UTC Posts: 339 Location: Royal Oak MI
Outsider Hooked ET 50 GTI250ie Sprint 150 Joined: UTC Posts: 339 Location: Royal Oak MI	UTC quote I will just leave mine alone they go fast enough. I have a 250i if I need to go faster.

Rickster333

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details

Hooked

2001 ET4 "Mona"

Joined: UTC
Posts: 239
Location: South Jersey

Rickster333

Hooked

2001 ET4 "Mona"

Joined: UTC
Posts: 239
Location: South Jersey

UTC quote

Outsider wrote:

US model I recommend upsizing the carb jet first. How much more speed would this get me? I have two ET4's they go about 65 stock.

I'm a novice at Vespa repair, but I recently adjusted the valves on my ET 4 ( It had just hit 6k miles in November) and also changed the idle jet to a 38. I CAN NOT believe the difference in performance. Much better acceleration and smoother running. Idle is much improved.

I see no additional speed, but I don't care about that anyway.

Everything else is stock except for an Iridium plug.

Positive

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