First project! Send help!
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Member
75 Primavera
Joined: 17 Dec 2020
Posts: 5
Location: AMSTERDAM
Thu Dec 17, 2020 12:12 pm quote
Hi! Help wanted!

I am rebuilding a 75 Primavera (1981) from Spain (or trying too) and then I encountered some thingies I don't understand. I have rebuild one scooter with batterie and CDI's so this is very new for me! (first vespa, first post )

My knowledge ends here. Its a Femsa Ignition, Femsa resistance and a Femsa Bobine. There is a white, green, black and yellow wire. My questions are:

* What colour is what?;
* Can I check if the ignition still works although the engine is loose of the frame? (got it in pieces)
* Do I need to upgrade? I don't want to buy a new 12v system because I want to use as much old stuff as I can!

Hope you guys can help me!



Stator.jpg

Ossessionato
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 61 Ser 2, 65 Silver Special, 86 & 96 Elite 80s, 2015 HD Road Glide Special, 2011 Ural Tourist
Joined: 18 Jan 2012
Posts: 3839
Location: Oceanside, CA
Thu Dec 17, 2020 4:15 pm quote
Re: First project! Send help!
wallie300 wrote:
Hi! Help wanted!

I am rebuilding a 75 Primavera (1981) from Spain (or trying too) and then I encountered some thingies I don't understand. I have rebuild one scooter with batterie and CDI's so this is very new for me! (first vespa, first post )

My knowledge ends here. Its a Femsa Ignition, Femsa resistance and a Femsa Bobine. There is a white, green, black and yellow wire. My questions are:

* What colour is what?;
* Can I check if the ignition still works although the engine is loose of the frame? (got it in pieces)
* Do I need to upgrade? I don't want to buy a new 12v system because I want to use as much old stuff as I can!

Hope you guys can help me!

1. Iíve never seen that model stator. A quick word, before you remove it, get a punch or flat screwdriver and hammer a mark into the stator and engine cases. That way you know the orientation and position of it when you re-install it.

Once you have it marked, take a picture of the light switch. I might be able to decipher which wire is which from looking at what spot the wires go into.
2. Sadly no, you cant check it out of the frame. Too many parts need to spin.
3. As long as it works, you shouldnít need to upgrade. If not, upgrading isnít a bad thing.
Member
1965 Vespa VBB
Joined: 20 Apr 2020
Posts: 32
Location: NYC
Thu Dec 17, 2020 9:11 pm quote
98% that your condensor is bad, given its mashed in like that.
Member
75 Primavera
Joined: 17 Dec 2020
Posts: 5
Location: AMSTERDAM
Fri Dec 18, 2020 2:55 am quote
MJRally wrote:
1. Iíve never seen that model stator. A quick word, before you remove it, get a punch or flat screwdriver and hammer a mark into the stator and engine cases. That way you know the orientation and position of it when you re-install it.

Once you have it marked, take a picture of the light switch. I might be able to decipher which wire is which from looking at what spot the wires go into.
2. Sadly no, you cant check it out of the frame. Too many parts need to spin.
3. As long as it works, you shouldnít need to upgrade. If not, upgrading isnít a bad thing.
I was kind of afraid that you would say that. Somebody already told me that the 75 is a bunch of parts from all kinds of models made into one. I kind of hoped that the stators would be interchangeable between smallframes but that is not the case right? And thanks for the tips! Maybe a engine stand is a solution?
Member
75 Primavera
Joined: 17 Dec 2020
Posts: 5
Location: AMSTERDAM
Fri Dec 18, 2020 2:58 am quote
Dirty30Dillon wrote:
98% that your condensor is bad, given its mashed in like that.
So that would be this thingy right? Do you think the rest is savable? Or is it really a matter of testing?

7B7F597A-AC32-4D97-8D5C-03E26BC5A9B4.jpeg

Enthusiast
61 VBB and 79 P200
Joined: 01 Jan 2018
Posts: 72
Location: Folsom CA
Sat Dec 19, 2020 12:04 pm quote
Other than that wonky condensor and the general strangeness of that stator it seems fine - these things tend to be pretty strong. I'd suggest you just work with it as is (replying the condensor and points). Maybe test the continuity through the wires. My VBB stator is going on 60 and still works like a champ, despite the scooter around it falling on serious hard times before I rescued it.
Ossessionato
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 61 Ser 2, 65 Silver Special, 86 & 96 Elite 80s, 2015 HD Road Glide Special, 2011 Ural Tourist
Joined: 18 Jan 2012
Posts: 3839
Location: Oceanside, CA
Sat Dec 19, 2020 2:52 pm quote
That condensor MAY work as is. Wonít know until everything is back together and you can spin the motor.

I say may not as a recommendation but just an option. Since you canít spin the motor, my recommendation is to replace the condensor and while youíre in there, rewire the stator.
Member
75 Primavera
Joined: 17 Dec 2020
Posts: 5
Location: AMSTERDAM
Sun Dec 20, 2020 9:15 am quote
Perfect! Thanks guys, I will replace the points and the condensor and if i'm feeling lucky I will re-wire the coils!

Thanks
Molto Verboso
Vespas 1964 GS160, 1965 SS180, 1977 V9A1T, 1983 PX150E
Joined: 16 Apr 2011
Posts: 1571
Location: Siam
Sun Dec 20, 2020 5:42 pm quote
A question to ask might be: How did the condensor get smashed like that?
Thatís pretty weird. Itís possible that a stator bolt that was too long blasted it.
Member
75 Primavera
Joined: 17 Dec 2020
Posts: 5
Location: AMSTERDAM
Sun Dec 20, 2020 11:31 pm quote
nomadinsiam wrote:
A question to ask might be: How did the condensor get smashed like that?
Thatís pretty weird. Itís possible that a stator bolt that was too long blasted it.
I will check if its above one of the holes from the flywheel. Maybe the past owner tried to take of the flywheel and put something trough the hole to make sure it wasnít moving anymore.... anyway. Its a save and cheap fix!
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