2006 Vespa 200 GT "extra throttle to start"
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Member
Joined: 04 May 2020
Posts: 7
Location: Los Angeles, CA
Mon Jun 29, 2020 11:30 am quote
Hi There,

I am looking at a 2006 vespa gt and the owner adivses "sometimes takes a bit of extra throttle to start, but never has any issues while running"

Is anyone familiar with what may be causing this or is it the nature of an older vespa 200 GT
Addicted
2006 GT200L "Lone Star"-Sold, 2006 Yamaha Majesty YP400
Joined: 15 Jan 2019
Posts: 635
Location: Texas
Mon Jun 29, 2020 5:17 pm quote
I had a 2006 GT200 until very recently. It should just start and idle smoothly from cold.

The bike has an electric "choke" plunger that allows extra fuel in while warming up. Either that's malfunctioning, or the carb passages are gummed up, or the mixture screw is misadjusted.

My .02.
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 38596
Location: Pleasant Hill, CA
Mon Jun 29, 2020 5:28 pm quote
They can all differ slightly, according to how the mixture and idle speed settings are set, and also by temperature, battery health (speed of turning over when starting) and how long it's been since the scooter was last used.

If my UK GT200 hadn't been used for a couple of weeks (rare when I'm over there!) then it would appreciate a twist of the wrist to get the accelerator pump to squirt a bit of extra fuel in. Day to day? Just press the starter button and ride off.
Ossessionato
2006 GT200
Joined: 23 Feb 2016
Posts: 2868
Location: Moscow, Idaho
Mon Jun 29, 2020 5:58 pm quote
Mine needed that for awhile. Then I cleaned the carb and adjusted the valves and it doesn't any more.
Member
Joined: 04 May 2020
Posts: 7
Location: Los Angeles, CA
Wed Jul 01, 2020 2:37 pm quote
Thank you all for your feedback, i'm going to check it out this weekend.

-HermosaBeachGuy
MV Santa
GTS250, 1960 VBA, 1975 VBC, 1980 P200E cutdown
Joined: 04 May 2010
Posts: 4333
Location: Sedgwick, Kansas
Wed Jul 01, 2020 4:40 pm quote
Mine always starts when cold but will sometimes not start while warm after sitting for a few minutes.

When that happens the procedure is to wait for 30 seconds and then it will start.

The carb probably could use a good cleaning.

As Jimc said they are all a little different.
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Granturismo 218
Joined: 04 Feb 2013
Posts: 6137
Location: NWAOK
Thu Jul 02, 2020 11:19 am quote
To adjust the air/fuel screw, you rely on a person's judgement. The odds are that no two people will adjust the air/fuel screw exactly the same, and there are a lot of people who have to read how to do it before they take up the task, because it's not that common anymore. That variable alone will affect how it starts and how it idles. Also, it is set for whatever gas was being sold when it was tuned. Some regions change the gas depending on the time of year, and this can make a bike that was fine yesterday start acting a little difficult.
Run through a tank or two of gas and see what it does before you start tearing into it.
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