OP
UTC

Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
 
Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
UTC quote
Hey all,

I have a '70 v90 that I rebuilding. It does not have a battery or a battery door.

I originally installed a loom that will accomodate a 6v stator and electronics before I had an engine. I assumed I could find the parts I needed and could have kept it stock.

Alas I found an ET3 engine that needs a stator.
From everyone Ive chatted with, it is recommended to covert to 12v.
This means: a 12v stator appropriate flywheel, cdi, and regulator.
And of course the appropriate loom.

So two questions:

1. Is there any way I can install these items withy existing loom? Am I able to match these and make them jive somehow? (Scooterwest says I can). Any one out there has made this happen?

2. If I were to move forward, any suggestions (or pictures) of where I can mount the regulator on the bike?

As always, much appreciated.
N
@rowdyc avatar
UTC

Molto Verboso
GL, PK, PE200 with hack, Sears Rust Badge
Joined: UTC
Posts: 1346
Location: Deep in the heart of Texas
 
Molto Verboso
@rowdyc avatar
GL, PK, PE200 with hack, Sears Rust Badge
Joined: UTC
Posts: 1346
Location: Deep in the heart of Texas
UTC quote
Just get an et3 stator & flywheel, Ducati cdi, and cdi bracket. Keep the 6v wiring loom and no need for a regulator.
The et3 motor came with a stator for 6v wiring and lights but electronic Ducati igntion. Just make sure all the 6v bulbs match up to the wiring diagram on scooterhelp.

With complete 12v lighting and igntion there's a need to change all the switches and modify the 6v wiring harness along with adding a regulator.
@mjrally avatar
UTC

Veni, Vidi, Posti
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5138
Location: Oceanside, CA
 
Veni, Vidi, Posti
@mjrally avatar
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5138
Location: Oceanside, CA
UTC quote
I'll disagree and say get a Vape static timing AC system. The one power wire makes it easy to marry into the existing harness and just have one hot wire through the whole scoot. You'll have to swap the brake switch too!

Been having a hell of a time getting an ET3 stator to play nice. Won't self regulate and blowing bulbs no matter what. I'm not that much of a prick to recommend it to you
OP
UTC

Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
 
Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
UTC quote
rowdyc wrote:
Just get an et3 stator & flywheel, Ducati cdi, and cdi bracket. Keep the 6v wiring loom and no need for a regulator.
The et3 motor came with a stator for 6v wiring and lights but electronic Ducati igntion. Just make sure all the 6v bulbs match up to the wiring diagram on scooterhelp.

With complete 12v lighting and igntion there's a need to change all the switches and modify the 6v wiring harness along with adding a regulator.
That means I'll have to find a small taper ET3 flywheel. I think that is going to be a challenge.
A friend recommended using a 100 sport flywheel but I'm unsure if he is accurate.
@rowdyc avatar
UTC

Molto Verboso
GL, PK, PE200 with hack, Sears Rust Badge
Joined: UTC
Posts: 1346
Location: Deep in the heart of Texas
 
Molto Verboso
@rowdyc avatar
GL, PK, PE200 with hack, Sears Rust Badge
Joined: UTC
Posts: 1346
Location: Deep in the heart of Texas
UTC quote
Finding an et3 small taper flywheel not a big problem or use the 100 sport flywheel. Also the Plo170 used the same flywheel and they can be found on eBay from India. Prob one of the few things that work for a vespa from India. Maybe because the plo170 was only an Indian market scooter. Sip and scooter center sells that type flywheel too.... if in stock. Same flywheel in the bgm 12v smallframe conversion kit.

The biggest problem maybe 6v bulbs blowing and that's were the 12v conv options comes up again. If you get that type of flywheel might as well go 12v all the way. You can use the 6v harness but wiring changes are needed for the handlebar switch. Regulator can go under the seat. Either sho goo i regulator on sidewall or use a bracket being sold to hold it with seat bolts.

Can also use the old v90 stator, ignition, and flywheel and run 6v if the et3 crank is the older, smaller 19mm and not the newer large 20 mm tapered crank.
OP
UTC

Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
 
Hooked
'81 Vespa P200e, '85 Vespa PX125e, 1985 T5
Joined: UTC
Posts: 366
Location: St. Catharines, Ontario
UTC quote
Thanks everyone for your responses.

Rowdyc. I can't seem to find a stock v90 stator or flywheel otherwise I would have built the 90 engine to match the bike. That was my plan all along thinking I had the electronics so I installed the loom that I did.

I may be able to get the 100 sport flywheel if a friend follows through. Otherwise I will have to opt for the 12v conversion.

If I have to do that, what would be a recommended part list:

12v stator with matching flywheel
Regulator
Cdi?
Ignition coil?
Different switches (brake and handlebar)?
12v bulbs?

Thanks again for all of your replies.
@safis avatar
UTC

Ossessionato
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4310
Location: Veria, Greece
 
Ossessionato
@safis avatar
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4310
Location: Veria, Greece
UTC quote
Vape kit (they do a 19mm cone), BGM 12V loom (has everything in the kit), 12V bulbs, doneā€¦
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