OP
UTC

Member
Vespa 2007 LX 150
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Posts: 6
 
Member
Vespa 2007 LX 150
Joined: UTC
Posts: 6
UTC quote
Hello. I am definitely a Vespa/Forum newbie and I have learned a lot by reading this Forum. I see many posts about LX's only being able to go 30 mph (which I am dealing with) and what to do about it. I am in the middle of figuring out what is up with my '07 LX 150 but I am wondering just how fast will my '07 go carrying a rider of 220 pounds?
Thanks for any help with this.
@wleuthold avatar
UTC

Veni, Vidi, Posti
2006 Vespa GT (Rocket): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125: 2018 Yamaha Xmax (Big Ugly), 2023 Vespa GTS300 (Ghost)
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Posts: 5228
Location: Jacksonville, Florida
 
Veni, Vidi, Posti
@wleuthold avatar
2006 Vespa GT (Rocket): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125: 2018 Yamaha Xmax (Big Ugly), 2023 Vespa GTS300 (Ghost)
Joined: UTC
Posts: 5228
Location: Jacksonville, Florida
UTC quote
It should top out at around 60 mph.
OP
UTC

Member
Vespa 2007 LX 150
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Posts: 6
 
Member
Vespa 2007 LX 150
Joined: UTC
Posts: 6
UTC quote
Thanks! I love this site.
@dooglas avatar
UTC

Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
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Posts: 13411
Location: Oregon City, OR
 
Veni, Vidi, Posti
@dooglas avatar
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13411
Location: Oregon City, OR
UTC quote
I agree. Top speed on the level 55 to 60, and I've owned 2 LX150s. Yours is carbed, and my experience was that loss of top end was usually a carb issue.
@xantufrog avatar
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Moderibbit
1980 P200E - "Old Rusty", 1976 ET3 Primavera
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Location: Atlanta, GA
 
Moderibbit
@xantufrog avatar
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: UTC
Posts: 8892
Location: Atlanta, GA
UTC quote
when were the belt and variator weights last serviced?
@jimjar avatar
UTC

Hooked
2012 LX150ie
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Posts: 292
Location: Austin Texas USA
 
Hooked
@jimjar avatar
2012 LX150ie
Joined: UTC
Posts: 292
Location: Austin Texas USA
UTC quote
Usually it's the 50cc LX's that have trouble getting past 30. I weigh 195, my LX150 can get pretty easily to 55, it takes awhile to get close to 60.
@dibiasio avatar
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Addicted
2006 LX150
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Posts: 685
Location: Los Angeles
 
Addicted
@dibiasio avatar
2006 LX150
Joined: UTC
Posts: 685
Location: Los Angeles
UTC quote
I weigh 205 and I have gotten my '06 LX150 up to 65MPH, but as I never take it on the freeway 50MPH is about all I ever need.
@silver_streak avatar
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Veni, Vidi, Posti
2007 Vespa LX 190, 2011 LXV150ie
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Posts: 8756
Location: Annapolis, MD, USA
 
Veni, Vidi, Posti
@silver_streak avatar
2007 Vespa LX 190, 2011 LXV150ie
Joined: UTC
Posts: 8756
Location: Annapolis, MD, USA
UTC quote
I also have a 2007 LX, which I kitted about twelve years ago to 190cc.

I also weigh 220.

Back when it was still a 150, it topped out at about 65 indicated (likely 60-61 actual).

Since I kitted it to 190 and added an upgear kit, it tops out at about 75 indicated if you give it enough room.

Soon after I kitted it, I took it on a 4,000-mile roadtrip from Maryland to Colorado and back, and cruised at about 65 most of the way. And that was with big saddlebags and lots of other luggage.

Mine has a flyscreen, which will give you better top speed than no windscreen or a big barn door.
OP
UTC

Member
Vespa 2007 LX 150
Joined: UTC
Posts: 6
 
Member
Vespa 2007 LX 150
Joined: UTC
Posts: 6
UTC quote
Hi. I finally got around to taking the top off my '07 LX 150 carburetor to see if seating the diaphragm in some white lithium grease (as suggest here) would allow me to scoot faster than the 30 mph. The results are in and I am now riding a Rocket (comparatively to what I had before). Thank you for all the help here on this forum. It worked like a champ and was such an easy fix.
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