Tue Nov 15, 2022 12:32 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Tue Nov 15, 2022 12:32 pm linkquote
Hi guys I need some advice cus I'm really confused.

I have a Vespa 150 sprint 1976 with a 125cc engine in it, and it's registered on the log book as a 125cc. But, when I check the engine serial number it shows it as a 150 sprint veloce. Could the original engine have been reduced in cc?
Tue Nov 15, 2022 12:51 pm

Hooked
'64 VBB, '74 BMW R75/6 airhead, Bultaco Alpina 250, Lambrettas
Joined: 01 Apr 2017
Posts: 243
Location: Western Mass., USA
 
Hooked
'64 VBB, '74 BMW R75/6 airhead, Bultaco Alpina 250, Lambrettas
Joined: 01 Apr 2017
Posts: 243
Location: Western Mass., USA
Tue Nov 15, 2022 12:51 pm linkquote
Suggest you check for the motor serial number on the swingarm, as per below:

https://www.scooterhelp.com/serial/vespa.serial.locator.html

What are the letters there?

Also it would be helpful if you post up some pics of your bike so we can see what you're contending with.
Tue Nov 15, 2022 1:00 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Tue Nov 15, 2022 1:00 pm linkquote
The number I have is on the engine swing arm VLB M with 7 numbers under it. I've checked the number online an it says 1976 150 sprint veloce. Could the cylinder head have been changed to a 125cc one?
Tue Nov 15, 2022 1:02 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Tue Nov 15, 2022 1:02 pm linkquote
I think it says VLB 1M
Tue Nov 15, 2022 1:11 pm

Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 227
Location: Cambria, CA
 
Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 227
Location: Cambria, CA
Tue Nov 15, 2022 1:11 pm linkquote
Chunksdad wrote:
The number I have is on the engine swing arm VLB M with 7 numbers under it. I've checked the number online an it says 1976 150 sprint veloce. Could the cylinder head have been changed to a 125cc one?
It would be very easy to put a 125 cylinder, piston and head on the VLB.

To make a 150 again all you would need is the correct 3 port (if it is a Veloce) 150 cylinder, piston and head.

You could even make it a 177 with a kit from VMC or BGM
Tue Nov 15, 2022 1:16 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Tue Nov 15, 2022 1:16 pm linkquote
Thanks, that answers my question. I might put it back to a 150. Thanks again for you help.
Tue Nov 15, 2022 1:17 pm

Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3119
Location: Rochester, Minnesota
 
Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3119
Location: Rochester, Minnesota
Tue Nov 15, 2022 1:17 pm linkquote
Chunksdad wrote:
Hi guys I need some advice cus I'm really confused.

I have a Vespa 150 sprint 1976 with a 125cc engine in it, and it's registered on the log book as a 125cc. But, when I check the engine serial number it shows it as a 150 sprint veloce. Could the original engine have been reduced in cc?
How do you know it's 125?
Tue Nov 15, 2022 1:22 pm

Hooked
'64 VBB, '74 BMW R75/6 airhead, Bultaco Alpina 250, Lambrettas
Joined: 01 Apr 2017
Posts: 243
Location: Western Mass., USA
 
Hooked
'64 VBB, '74 BMW R75/6 airhead, Bultaco Alpina 250, Lambrettas
Joined: 01 Apr 2017
Posts: 243
Location: Western Mass., USA
Tue Nov 15, 2022 1:22 pm linkquote
How original does the scoot appear to be -- has it been "restored" previously or is it a stock style survivor?
Tue Nov 15, 2022 2:20 pm

Molto Verboso
'64 Motovespa 150S (177) , '66 Allstate SF, '65 VBB, '66 180SS
Joined: 27 Mar 2013
Posts: 1457
Location: S.Salem, NY
 
Molto Verboso
'64 Motovespa 150S (177) , '66 Allstate SF, '65 VBB, '66 180SS
Joined: 27 Mar 2013
Posts: 1457
Location: S.Salem, NY
Tue Nov 15, 2022 2:20 pm linkquote
Christopher_55934 wrote:
How do you know it's 125?
Curious here as well.
Tue Nov 15, 2022 3:19 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
Tue Nov 15, 2022 3:19 pm linkquote
zachyzach wrote:
How original does the scoot appear to be -- has it been "restored" previously or is it a stock style survivor?
see his other posts for photos of the bike. it looks like a questionable "resto" to me.
Tue Nov 15, 2022 9:56 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Tue Nov 15, 2022 9:56 pm linkquote
Looks in good condition for its age and it looks like it's had a partial tidied up but not professionally. Few aftermarket bits that can be changed back but seems ok for the purpose
Wed Nov 16, 2022 3:30 am

Hooked
PK50XL, PK100S, ET3
Joined: 26 Aug 2020
Posts: 306
Location: UK
 
Hooked
PK50XL, PK100S, ET3
Joined: 26 Aug 2020
Posts: 306
Location: UK
Wed Nov 16, 2022 3:30 am linkquote
Its UK so has it been re-registered for riding on a learner license?
Wed Nov 16, 2022 3:51 am

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Wed Nov 16, 2022 3:51 am linkquote
I must admit it thought it may have just been a paper exercise to enable a leaner diver to ride it. When I take the head of how obvious will it be as to being a 125 or still the original 150
Wed Nov 16, 2022 4:03 am

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
Wed Nov 16, 2022 4:03 am linkquote
Chunksdad wrote:
I must admit it thought it may have just been a paper exercise to enable a leaner diver to ride it. When I take the head of how obvious will it be as to being a 125 or still the original 150
it won't, you'll need to measure it.
52.5~53.1=125
57.8~58.4=150
Wed Nov 16, 2022 4:06 am

Molto Verboso
'64 Motovespa 150S (177) , '66 Allstate SF, '65 VBB, '66 180SS
Joined: 27 Mar 2013
Posts: 1457
Location: S.Salem, NY
 
Molto Verboso
'64 Motovespa 150S (177) , '66 Allstate SF, '65 VBB, '66 180SS
Joined: 27 Mar 2013
Posts: 1457
Location: S.Salem, NY
Wed Nov 16, 2022 4:06 am linkquote
The size may also be stamped on the piston.
Wed Nov 16, 2022 5:43 am

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Wed Nov 16, 2022 5:43 am linkquote
Great, thanks for your help
Sun Nov 20, 2022 9:59 pm

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Sun Nov 20, 2022 9:59 pm linkquote
Anyone know the difference between a VBL and a VBB. They appear very similar when ordering parts.
Sun Nov 20, 2022 10:15 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
Sun Nov 20, 2022 10:15 pm linkquote
Chunksdad wrote:
Anyone know the difference between a VBL and a VBB. They appear very similar when ordering parts.
I assume you mean VLB, otherwise if your numbers start VBL that's a whole different can of fish.

there are several parts that are similar, there are several that interchange. not everything does and there are minor differences. details are important here.

if you don't know what you're doing or precisely what you need you may very well end up with the wrong parts or parts that won't work.

the best way to avoid this is to order from a known entity that you can whittle down the choices to items that only pertain to your specific model-- like SIP or scooter-center.

or ask somebody knowledgeable. but be specific, broad and vague questions get many responses and that easily makes the water murky.
Mon Nov 21, 2022 12:25 am

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Mon Nov 21, 2022 12:25 am linkquote
Sorry yes VLB.
Mon Nov 21, 2022 3:49 pm

Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
 
Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
Mon Nov 21, 2022 3:49 pm linkquote
To save all the guesswork, please put up a photo!
Mon Nov 21, 2022 4:31 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 12200
Location: The state of insanity, SoCal
Mon Nov 21, 2022 4:31 pm linkquote
SubEtherBASS wrote:
To save all the guesswork, please put up a photo!
specifically the MOTOR and the engine numbers stamped on the case. that should erase a bit of confusion. or cause more. could go either way, really.
Mon Nov 21, 2022 5:55 pm

Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
 
Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
Mon Nov 21, 2022 5:55 pm linkquote
greasy125 wrote:
specifically the MOTOR and the engine numbers stamped on the case. that should erase a bit of confusion. or cause more. could go either way, really.
True... here are his other posts, with a few pics of bits of the motor.
As it doesn't appear to be the ORIGINAL MOTOR (ie. wiring patched trice, cut once etc) who knows .

Piaggeo Vespa Sprint V 150

Throttle problem.

I've got Speedy's TWIN, which was from SAME N.Z. Factory, likely opin SAME MONTH of production (engine numbers about as close as you will ever find), but Speedy was a factory VBC150 & BRO was a factory VBC125.
As mentioned, it was only the cyl kit that differed.

An Original Super Resto?


The motor... at a guess it was promptly chopped out of some other scoot... nice to see the FINS appear to ALL be still in place (which kinda reduces the S.E.A Alert Radar)

Sun Nov 27, 2022 10:01 am

Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
 
Member
Vespa sprint V150
Joined: 20 Oct 2022
Posts: 27
Location: West mids
Sun Nov 27, 2022 10:01 am linkquote
It appears to have had a 12v stator plate fitted but no indication as to having a electronic ignition fitted. I was planning on fitting a BGM Ducati stator plate kit to give me voltage and better starting, but now a bit stuck as which direction to go. Do I go for a full BGM Ducati kit, or is it possible to just add a CDI to what I have and would it need a regulator.

I will be putting in a new 12v wiring harness, but as I'm new to this I need the best and clearest way forward.

Everything else is going well with the restoration, just need a plan for the electrical side of things.

I have also attached a picture of the number stamp.

Thanks in advance



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