Bought a rough craigslist 2004 GT200, fixing it up
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Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Thu Feb 23, 2017 5:15 pm quote
Little history, been riding 16 years, every genre of motorcycle, former MSF instructor. Sold my other bike cause I never rode the huge expensive thing, wanted something small and zippy to have fun with. Was actually cross shopping CBR250's and 70's small CC UJM's when I came across this.

Bought it for $1k off craigslist. 2004 GT200, 5,100 miles. Got it all titled and registered, slowly putting it back together with stuff from ebay. Runs great, getting the local dealer to look it over and do the 5k mile service next week. I'll update this as stuff comes in. Got a small flyscreen, a Vespa toolkit, some knee covers, and the plastic piece between the left lower fender, led blinkers, and the deck trim coming off ebay. Going to just touch up paint the scrapes after sanding any rust off. So far having fun with it, thing is a hoot. Gonna try riding it to work tomorrow and see how it handles the commute.

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As bought. Got it cheap cause it got dropped pretty bad. Scratches all over.

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Horn cover missing, cracked mirror. Couple screws and backing things missing. Missing rear lower fender piece.

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Popped on the horn cover and Piaggio emblem. Replaced the broken right brake lever. Double side taped the reflector.

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Rear lower fender installed. Missing screws replaced. Used drywall anchors in place of the missing screw backing things.

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Freaking glove box was stuck shut. Previous owner stuck some tissue under the seat locking mechanism cause the button doesn't work. Used a GPS suction cup to pull the door open and cleared out some gasket and leaves. So now I can lock and unlock the se

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More pics of the rear lower fender piece. Still missing the one between it and the side trim piece. Ordered one off ebay.

Ossessionato
BV350, Primavera 150, Yamaha Zuma 125
Joined: 06 Jun 2013
Posts: 2883
Location: The Twin Cities of Minneapolis/Saint Paul, Minnesota
Thu Feb 23, 2017 5:25 pm quote
Nice job! Only one thing -- I would have replaced the broken mirror with an original round chrome one. Those black ones make the whole scooter look cheap, IMO. Otherwise, the scooter looks sharp!
Ossessionato
2006 GT200
Joined: 23 Feb 2016
Posts: 2716
Location: Moscow, Idaho
Thu Feb 23, 2017 5:37 pm quote
Perfect score!
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Thu Feb 23, 2017 6:40 pm quote
JKJ-FZ6 wrote:
Nice job! Only one thing -- I would have replaced the broken mirror with an original round chrome one. Those black ones make the whole scooter look cheap, IMO. Otherwise, the scooter looks sharp!
Its tough to tell from the pics, but the silver trim is kind of crunched up too. The mirrors do look cheap cause they were like $12 off amazon prime, for some reason it hurt me to spend $40 on that single left mirror. These will have to do until it gets here next week. Lucky the right mirror was ok. There's some fairly extensive rust on the seat hinge. Thinking of just wire brushing it then hitting it with rust reformer and camping ebay till a replacement shows up.
Veni, Vidi, Posti
2007 LX150 2015 GTS 2013 BV 350
Joined: 13 Sep 2012
Posts: 8785
Location: Fond du Lac, Wisconsin
Thu Feb 23, 2017 6:49 pm quote
Nice project. You should have a pretty awesome scooter when you're done...at least for the price!
Ossessionato
1979 P200e
Joined: 18 Mar 2013
Posts: 2484
Location: Lock Haven, PA
Fri Feb 24, 2017 5:22 am quote
It's a black scooter.... black mirrors work for me
World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Fri Feb 24, 2017 8:27 am quote
Congrats and you scored. IMHO the 200's are one of the best scooters in Piaggio's lineup. Just ride them, keep up with the maintenance and it'll go forever.
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Fri Feb 24, 2017 4:38 pm quote
Got a spare key made and programmed it. One of the JMA ones. Like how thinner it is. $35 for the key and $20 to get it cut. Brushed the rusty seat hinge and shot it with rust reformer. Rode it to work this morning. Seemed to run ok, some highway. Max indicated was 75 with a hill, could hit 70 indicated most of the time, down to 65 on uphill. Dunno what real speed was, can't stick my gps on the handlebars. Its about 13 years old, probably still has the original spark plug in there. Checked the boot and it was on tight at least. I'm about 195lbs, the small windscreen I have coming may help with top speed, along with an oil and gear lube change.
Hooked
BV250
Joined: 12 Nov 2016
Posts: 227
Location: CA
Fri Feb 24, 2017 4:48 pm quote
Nice ride. I love deals like that the most. When you can take something that's been not well taken care of and bring it back to operating then a few scars are like a badge of honor.

I do like the round mirrors more as that's pretty much the signature look.
Addicted
2009 LX 150, 2008 GTS 250
Joined: 19 Jun 2011
Posts: 720
Location: Birmingham, Alabama, USA
Fri Feb 24, 2017 6:58 pm quote
Awesome choice, glad you're enjoying it! I see at AF1racing.com have some used parts available from time to time. I replaced scratched plastic cheap this way. Also, MV is your source for DIY maintenance so don't be shy with maintenance questions!

Bill
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Sun Feb 26, 2017 11:36 am quote
I installed the ebay knee pads. Looks much better all buttoned up like that. I tried bending the glove box door back to fit the contours of the fairing but then it stuck closed so I bent it back. Dunno if the seat release solenoid is bad, the button itself, or if maybe it just unplugged when it dropped.

I took off the seat, brushed off all the loose rust, and shot the hinge with rust reformer. Feels sturdy so I'm not gonna bother tracking down a replacement. I'd likely have to buy a whole seat just to get the hinge anyways.

Got a GT200 tool kit off ebay too along with the little cap, so I could finally take out the spark plug. Replaced it with a Denso IU24 plug. Started up easier than it ever has, first touch of the starter. Usually takes like 3 tries so that was nice. Old one looked ok, no clue where the oil on the threads came from, tan and dry like the chart, but I'm 100% sure its the original plug and tires on it so like 13 years old. Test ride hit around 75 still, but was much better at keeping it above 70 on the highway even with hills.

Just waiting on the left round mirror, flyscreen fairing, and the little plastic bit between the floor board and the lower fender fairing till its complete. Touched it up with black paint to make the scratches less obvious. Right rear fender is all flat with no gloss though. Don't know if I want to use that much touch up paint, probably just live with it like this for a while. Tires look like the next big thing, got some exhaust gasket bushing things coming so I can pop them off myself and take them to a shop.

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Hooked
GT200 / ET2 Kitted
Joined: 14 Jan 2017
Posts: 193
Location: Louisville, Colorado
Sun Feb 26, 2017 6:28 pm quote
As the owner of an 04 GT200 I am really enjoying watching you fix this beauty up.

Well done so far sir!
Lurker
2007 LXV 150, 2007 LX 150
Joined: 30 Jan 2017
Posts: 2

Sun Feb 26, 2017 6:43 pm quote
Nice Score!! Looks great so far.
Now get out and ride it!!
Ossessionato
2006 Vespa GT (Rocket): 2005 Vespa GT (Razzo): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125 (Zoom): 2018 Yamaha Xmax (Max),
Joined: 26 Sep 2006
Posts: 4174
Location: Jacksonville, Florida
Mon Feb 27, 2017 5:21 am quote
I always enjoy seeing people buying GT's. They are great scooters.
Once repaired, you are going to like it a lot.
I have bought body parts from Scooter Parts Co. If color doesn't matter, the plastic pieces are quite inexpensive. And easy to paint.
As for your top speeds so far, those indicated, if running a 120 front tire, are actually around 10% higher than actual GPS speeds.
It should be good for 80 indicated easily.
A new belt can improve speeds significantly.
Bill
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Mon Feb 27, 2017 7:13 am quote
WLeuthold wrote:
I always enjoy seeing people buying GT's. They are great scooters.
Once repaired, you are going to like it a lot.
I have bought body parts from Scooter Parts Co. If color doesn't matter, the plastic pieces are quite inexpensive. And easy to paint.
As for your top speeds so far, those indicated, if running a 120 front tire, are actually around 10% higher than actual GPS speeds.
It should be good for 80 indicated easily.
A new belt can improve speeds significantly.
Bill
120 front tire, 130 rear. My top speed on the ride to work this morning was 72 according to the GPS on my phone, 75 max indicated, so looks like something is slowing me down. Maybe fresh fluids and an air filter cleaning will get me to 80 after the dealer does the 5k service, recall check, and give it a once over. I can do all that stuff but I figure I'll give them a chance to earn my future business while giving me a warm fuzzy about stuff I may miss due to not being familiar with Vespas.

Gonna do the belt myself though, just ordered the parts. Decided to go with scooterpartsco and their belt tuning kit along with the clutch and variator tools. Came out to $148. Looked up the procedure on another thread here, doesn't look too hard. Only 5,200 miles now, but it is nearly a decade and a half old so cheap insurance.
World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Mon Feb 27, 2017 8:27 am quote
BR i like the way you think. Rubber degrades over time and when i bought my '07 Yamaha Vino i changed out a lot of things. It only had 4,500 miles on it but everything was 8yrs old. Better to be safe than sorry. The 200 is one of the best scooters (modern) that Piaggio has made IMHO. Keep the updates coming.
Ossessionato
2006 Vespa GT (Rocket): 2005 Vespa GT (Razzo): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125 (Zoom): 2018 Yamaha Xmax (Max),
Joined: 26 Sep 2006
Posts: 4174
Location: Jacksonville, Florida
Mon Feb 27, 2017 11:33 am quote
brzy25 wrote:
Gonna do the belt myself though, just ordered the parts. Decided to go with scooterpartsco and their belt tuning kit along with the clutch and variator tools. Came out to $148. Looked up the procedure on another thread here, doesn't look too hard. Only 5,200 miles now, but it is nearly a decade and a half old so cheap insurance.
The belt change is easy with the proper tools. I had my mechanic do it for years, but when he moved away, I started doing it myself and found it to be a piece of cake. You may find the outer drive pulley or the back plate of the variator difficult to get off. I use a three legged gear puller when these resist.

Once done, I am sure that you will get 5 more mph.
Veni, Vidi, Posti
Lx 50 4T, S 150, GTS 250
Joined: 21 Feb 2011
Posts: 7201
Location: KS USA
Mon Feb 27, 2017 11:58 am quote
1. Now that the rust is gone I would give it spray of black paint.

2. Those exposed wires worry me. Anyway to tuck them in?

I need to stop worrying about worrying too much about worrying.

Max

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Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Mon Feb 27, 2017 2:30 pm quote
Little annoyed, the small plastic bit I bought was plum, not black like it looked in the pics. Its also flared a little, different than the other side. Were there body changed between 2004 and 2006 models? Got the left mirror installed so now I don't get a weird cat's eye view behind me. Also fixed my seat release button. Found a thread that said to clean out the contacts in the button. Worked like a charm, had a crazy amount of oxidation. Actually had to scrape it off with the screwdriver, brass brush wasn't cutting it, literally. Glovebox door works better, I cut off the little burs that were catching where it got screwdriver jabbed. Fits pretty much flush now.

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Ossessionato
2006 Vespa GT (Rocket): 2005 Vespa GT (Razzo): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125 (Zoom): 2018 Yamaha Xmax (Max),
Joined: 26 Sep 2006
Posts: 4174
Location: Jacksonville, Florida
Mon Feb 27, 2017 3:25 pm quote
The plum can stay, but it is easy to take it off, rough it up a little with sandpaper, paint it with a primer, then gloss black.
Where it is located, you will never notice that the paint is different.
Bill
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Wed Mar 01, 2017 10:49 am quote
WLeuthold wrote:
The belt change is easy with the proper tools. I had my mechanic do it for years, but when he moved away, I started doing it myself and found it to be a piece of cake. You may find the outer drive pulley or the back plate of the variator difficult to get off. I use a three legged gear puller when these resist.

Once done, I am sure that you will get 5 more mph.
Thinking about it, the air filter may not have been touched, haven't checked. It should get done today during the service. What size three leg gear puller do I need? 3", 4"?
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 37673
Location: Pleasant Hill, CA
Wed Mar 01, 2017 2:22 pm quote
brzy25 wrote:
WLeuthold wrote:
The belt change is easy with the proper tools. I had my mechanic do it for years, but when he moved away, I started doing it myself and found it to be a piece of cake. You may find the outer drive pulley or the back plate of the variator difficult to get off. I use a three legged gear puller when these resist.

Once done, I am sure that you will get 5 more mph.
Thinking about it, the air filter may not have been touched, haven't checked. It should get done today during the service. What size three leg gear puller do I need? 3", 4"?
Get the cheapo set from Harbor Freight.

http://www.harborfreight.com/three-jaw-puller-set-3-pc-69105.html
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Wed Mar 01, 2017 4:38 pm quote
Back from the service. Radiator flushed and filled, oil and hub fluid changed, air filter cleaned and oiled, and valves checked with no adjustment needed. I actually went in and checked the filter, looked spotless so I'm guessing they did go in there. All in all pretty satisfied, though I'm still gonna do the belt tires and brakes myself. Wasn't able to go much above 70 due to traffic so I can't tell if there's any top speed difference, but it did feel pretty good.

Noticed my bike farting, guessing its the evap can. Already disconnected the tube into the carb and stuck a small fuel filter on the end, tempted to disconnect the canister too so I don't have to worry about pressure in the tank.
World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Thu Mar 02, 2017 7:56 am quote
B the 200's tend to "fart or Moo. Wouldn't worry about it. Gives them character. Your going to have one beautiful bike when your done and it'll last for years. Piaggio got it right with the 200's.
Addicted
2014 GTV 300ie
Joined: 05 Mar 2016
Posts: 752
Location: Charleston SC
Thu Mar 02, 2017 1:10 pm quote
judy wrote:
B the 200's tend to "fart or Moo. Wouldn't worry about it. Gives them character. Your going to have one beautiful bike when your done and it'll last for years. Piaggio got it right with the 200's.
Okay in a scooter. A little disconcerting in a spouse...
World Traveler
2007 LX150 Daring Plum Leonardo Da Vespa
Joined: 02 Jul 2006
Posts: 29304

Fri Mar 03, 2017 7:30 am quote
R Farting wouldn't be a problem but if they moo i'd run for the hills.
Veni, Vidi, Posti
GTS 300, BV 500, Buddy 125
Joined: 05 Apr 2008
Posts: 7969
Location: Houston, TX/Breckenridge, CO
Fri Mar 03, 2017 9:53 am quote
A lot of folks remove those reflectors because the pins that hold them tend to break plus they are butt ugly. On our black scooters I removed them and put a black on black reflective stripe around the scooter. That serves two purposes, it hides the holes (some folks use furniture plugs from the hardware store to fill it in first) and second gives you a much more effective reflection when hit by car lights. I've used this one https://www.amazon.com/3M-Scotchcal-Reflective-Striping-5-Inch/dp/B00063XI64 I've also used a contrasting color on some of our other scooters. I especially like it on top cases since it really makes a difference in visibility being more or less at eye level.
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Fri Mar 03, 2017 10:15 am quote
cdwise wrote:
A lot of folks remove those reflectors because the pins that hold them tend to break plus they are butt ugly. On our black scooters I removed them and put a black on black reflective stripe around the scooter. That serves two purposes, it hides the holes (some folks use furniture plugs from the hardware store to fill it in first) and second gives you a much more effective reflection when hit by car lights. I've used this one https://www.amazon.com/3M-Scotchcal-Reflective-Striping-5-Inch/dp/B00063XI64 I've also used a contrasting color on some of our other scooters. I especially like it on top cases since it really makes a difference in visibility being more or less at eye level.
My left side reflector definitely screws on so its good. No clue where it came from, it looks just like the right one thats the broken pin type. I'm not too worried about it though, its like the 15lb double sided tape so its not going anywhere.
Addicted
2007 GT200, 2008 Yamaha C3
Joined: 27 Jul 2012
Posts: 538
Location: Denver
Fri Mar 03, 2017 10:27 am quote
I'm following your progress on this. I picked up a similar GT200 last year about this time after working on getting the previous owner to sell for close to 5 months.

To get rid of the reflectors, I used both the ideas cdwise offered up. Ace Hardware sells nylon black plugs that fit the holes perfect. On ther rear sides I used a combination of black reflective tape and the plugs. On the rear panel, I did the same, covered the whole panel with reflective tape and used the nylon plugs. On the front fender I used a combination plug - Italian flag reflector.

Following advice from this forum, I completely removed every last bit of the EVAP system and replaced all my vacuum and fuel lines (Thanks Judy). I even went as far to replace the petcock, fuel pump and fuel filter.

I really got rid of the scooter's gastrological problems when I blocked off the SAS. No more rude noises, Idles much smoother.

After getting rid of the EVAP system, I didn't notice any difference in the way it ran. After blocking off the SAS, it was a whole different scooter.

Not being able to leave well enough alone, I also reshaped my stock seat. I shaved the horn and the hump, filled in the low spot between the two and added a 5/8" gel pad directly over the pan hump. I'll fit it with a sheepskin cover down the road, but for now the $7.00 eBay seat cover is working fine.

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It's hard to see, but there is black reflective tape here.

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Still provides night visibility without sticking out from the fender.

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Always loved vintage Vespa bench seats.

Hooked
2013 Vespa GTS300 Super, 2005 Vespa GT200, 2003 Stella, 1980 Vespa P200E
Joined: 15 Jun 2011
Posts: 276
Location: Jacksonville, Florida
Fri Mar 03, 2017 10:35 am quote
Another Vespa in Jacksonville!

Please consider joining up with 7 Bridges Scooter Club. We're on the net (www.7bsc.com) and Facebook (search for 7 bridges....).

I recall this scooter. Our former mechanic, Boris, had it in the shop a couple of years ago for some repairs. It was missing parts then.

We ride every Tuesday night (meet at Jimmy Johns on Park Avenue in Riverside) at 6:30 pm and leave at 7:00 pm for a pre-determined dinner destination. Those rides are always posted on our web site and Facebook.

We also ride on the weekends, usually Sundays, for distances of 100 miles or more for lunch.

Our 7BSC Annual Bridges Ride is on Sunday, March 26. We'll ride all the major bridges in the morning and have lunch at Seven Bridges Restaurant afterwards. Nearly 50 riders from all over are expected.

I have a GT200 like yours, only grey. It has nearly 50,000 miles.

Give me a shout if you want any more details. We are serious about riding.

Russ Dixon
(904) 510-3897
rwd11954@hotmail.com
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Sat Mar 04, 2017 4:00 pm quote
Did the belt. Changed the air filter to the Malossi foam one that came with the kit. So lessons learned:

The airbox can just be pushed up out of the way after you remove the 3 screws holding it
The pulley with the rollers and the plaste with the u shaped things in it can be put on in one piece so they don't fall out
Said pulley can be pushed in further cause of the rollers moving so the variator tool teeth line up with it
That one washer went outside the clutch bell but inside the outer cover
That variator vent on the cover does not snap off. It just snaps. Into pieces.

Still can't hit 80 indicated. Feels like maybe its not going to high gear? Max actual gps speed was 65. Old belt and rollers really didn't look bad.The Malossi rollers didn't have a plastic side, both were the same except for text on one.

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Hooked
2013 Vespa GTS300 Super, 2005 Vespa GT200, 2003 Stella, 1980 Vespa P200E
Joined: 15 Jun 2011
Posts: 276
Location: Jacksonville, Florida
Sat Mar 04, 2017 4:40 pm quote
I would double-check the transmission service you did. Mainly the weight of the rollers you used. That can impact acceleration vs. top end. Your rollers may be giving you better zoom from 0 at the expense of where it tops out.

My GT with nearly 50,000 miles usually tops out at an indicated 84. That's more like 75 real speed. The advertised top speed is 72, so if you can get it to go at least that fast, you would be good.
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Sat Mar 04, 2017 5:26 pm quote
Rollers were Malossi 20x17 10.5. They came with the kit. That right?
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 37673
Location: Pleasant Hill, CA
Sat Mar 04, 2017 5:38 pm quote
brzy25 wrote:
Rollers were Malossi 20x17 10.5. They came with the kit. That right?
That's fine - stock is 10.7g.

Getting top speed needs a flyscreen, and LOTS of time on a flat run with no wind. The last few mph takes ages. I've had 78mph (GPS) out of mine, all totally stock, without going into a tuck.
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Sat Mar 04, 2017 6:47 pm quote
jimc wrote:
brzy25 wrote:
Rollers were Malossi 20x17 10.5. They came with the kit. That right?
That's fine - stock is 10.7g.

Getting top speed needs a flyscreen, and LOTS of time on a flat run with no wind. The last few mph takes ages. I've had 78mph (GPS) out of mine, all totally stock, without going into a tuck.
Does it matter which way they face? The malossi's looked the same except for the text.

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Ossessionato
2006 Vespa GT (Rocket): 2005 Vespa GT (Razzo): 2007 Vespa GT (Vanessa): 2009 Yamaha Zuma 125 (Zoom): 2018 Yamaha Xmax (Max),
Joined: 26 Sep 2006
Posts: 4174
Location: Jacksonville, Florida
Sun Mar 05, 2017 5:58 am quote
brzy25 wrote:
Does it matter which way they face? The malossi's looked the same except for the text.
The OEM rollers have two distinct ends, and the manual tells you the direction. Others not so much. I try to find differences in the ends and set them all the same way.
Enthusiast
2004 GT200
Joined: 21 Feb 2017
Posts: 65
Location: Jacksonville, FL
Sun Mar 05, 2017 9:57 am quote
Took it apart one more time. Cleaned off the pulley faces, clutch, and bell with a green scotch pad. Gotten pretty good at taking it apart. Max speed was 72, indicated 75 on a downhill section with a tailwind. Its pretty windy today, could really only hit 65 reliably. Felt sort of like it was surging when it was maxed out. Kind of annoyed. Have some Dr Pulley 10gr slides coming in to maybe help the top end. Runs pretty good up to 65, accelerates nice. Gonna pop the stock air filter in, dunno if the Malossi red one needs a carb rejet or not, maybe its leaning out?

Edit - Just went to take it for another ride and the exhaust suddenly got louder. Luckily I was pretty close to home. Bought a couple exhaust gaskets for a rainy day but they won't be in till later this week and the dealer is closed today so thats not an option either. Sucks.
Hooked
2013 Vespa GTS300 Super, 2005 Vespa GT200, 2003 Stella, 1980 Vespa P200E
Joined: 15 Jun 2011
Posts: 276
Location: Jacksonville, Florida
Sun Mar 05, 2017 11:48 am quote
Someone suggested that a windscreen can help. I agree with that. if nothing else, riding at speed will be more enjoyable. Cost = $100-200 unless you buy used on eBay.

If the Dr Pulley weights are about the same as the stock ones you're using, that won't change much.

Pull and replace the air filter if you haven't already (a dirty air filter will impede air flow). Cost = $10-15.

Pull and replace the fuel filter if you haven't already (a dirty one may impede fuel flow). Cost = $5.

Inspect all the hoses, especially those that affect vacuum. If any are cracked, they could be leaking air. Cost = whatever a length of hose costs.

Take off all the pollution control devices. They usually screw up the low end performance, but it can't hurt to make it gone. They are videos on here how to do that. Pretty easy. Cost = $0

Can't see changing jets making a difference. My carb is stock and the bike will do 84 indicated.

Take a look at the exhaust pipe. They can get partially clogged with age and cause the bike to be slower at speed. However, that is the most expensive suggestion here. Cost = $300-500 unless you buy used on eBay.

I don't suggest taking it to the dealer for help. They only have 1 Vespa for every 20 Hondas, so they are not as well versed in scooters. And charge the highest rates in Jacksonville.

Our club has been using ACE Vintage Motorcycle Specialists in the Regency Square area for scooter work the past year. They do good work, but are still learning scooters. Highly recommend them for work beyond your skills. One of our members is having them do an engine transplant on a GT just this week.

At least two of us in 7 Bridges Scooter Club has GT200s. You might want to have one of us ride it and throw in their two cents worth.
Addicted
2015 BV350 2007 GTS(sold) 2003 BV200
Joined: 04 Feb 2012
Posts: 752
Location: nyc
Sun Mar 05, 2017 3:47 pm quote
could the rollers slipped out of place during assembly? could the pulley be binding on the boss?

John
Hooked
"MY WIFES" 2010 GTS FASTER & BETTER ENGINEERED THAN YOURS!!
Joined: 23 Jan 2017
Posts: 488
Location: STAYOFFVILLE
Sun Mar 05, 2017 4:43 pm quote
brzy25 wrote:
Took it apart one more time. Cleaned off the pulley faces, clutch, and bell with a green scotch pad. Gotten pretty good at taking it apart. Max speed was 72, indicated 75 on a downhill section with a tailwind. Its pretty windy today, could really only hit 65 reliably. Felt sort of like it was surging when it was maxed out. Kind of annoyed. Have some Dr Pulley 10gr slides coming in to maybe help the top end. Runs pretty good up to 65, accelerates nice. Gonna pop the stock air filter in, dunno if the Malossi red one needs a carb rejet or not, maybe its leaning out?

Edit - Just went to take it for another ride and the exhaust suddenly got louder. Luckily I was pretty close to home. Bought a couple exhaust gaskets for a rainy day but they won't be in till later this week and the dealer is closed today so thats not an option either. Sucks.
do you know what jetting is in the carb now? At a very minimum you should go up at least 2 sizes on the main being the 904 is at sea level. You can test ride all you want but without proper fueling at sea level... youre never going to see good performance. You may also want to spend $50 on some dyno time at WAM to see how lean your fuel mixture is and how the bike behaves at WOT.
And seriously if youre considering using any local dealer... please refrain. They all have a case of DumbAss thats incurable.

I think I might have the fastest big frame around town unless there is someone else making north of 23hp.
Scooting the Ozarks is a scooter rally held in Eureka Springs, Arkansas offering riders scenic twisty rides, poker run, and more.   vespa scooterwest scooter west Motorsport Scooters   AF1 Racing Vespa Austin
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