OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
I'm converting my 100 sport to EI. Please let me know if I am wiring this correctly. I think the red wire I have coming from the pickup goes to the red plug on the CDI, white ground wire goes to white plug on CDI, and green wire from coil (I have replaced the original with a new wire but this photo still shows original green wire) to green plug on coil/kill switch. Does it matter which green plug on the CDI I connect to?

**Update**('')
I have everything wired correctly. I even replaced all of the old wires on the stator. I am getting no spark. The headlight lights up when I spin the flywheel with my drill. I have a new spark plug and the plug wire has very low miles. I cannot figure out why there is no spark. Bad pickup or CDI? Is there a way to test either of them with my mult-meter? Sorry for all of the questions, this is my first Vespa and it seems so simple yet, I cannot figure it out.
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
⚠️ Last edited by Gorso on UTC; edited 3 times
@akp avatar
UTC

TEAM #68
ET4 & GT160
Joined: UTC
Posts: 1645
Location: S.West England
 
TEAM #68
@akp avatar
ET4 & GT160
Joined: UTC
Posts: 1645
Location: S.West England
UTC quote
I believe it does. Plug into the first green one, the innermost. The other one is from your switches and operates the kill. This is how my px is set up.
@dcunited4life avatar
UTC

Molto Verboso
No moar Vespas...sold them all
Joined: UTC
Posts: 1087
Location: Denver City Denver
 
Molto Verboso
@dcunited4life avatar
No moar Vespas...sold them all
Joined: UTC
Posts: 1087
Location: Denver City Denver
UTC quote
AKP is correct.
OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
So, the kill switch should be wired directly to the cdi on the outside green plug? When I get this working, I'm going to create EI conversion for dummies with photos.
@akp avatar
UTC

TEAM #68
ET4 & GT160
Joined: UTC
Posts: 1645
Location: S.West England
 
TEAM #68
@akp avatar
ET4 & GT160
Joined: UTC
Posts: 1645
Location: S.West England
UTC quote
Gorso wrote:
So, the kill switch should be wired directly to the cdi on the outside green plug? When I get this working, I'm going to create EI conversion for dummies with photos.
The outside green plug is wired directly to the kill switch on your headset.
OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
So after checking the continuity on every wire, new spark plug, rewired stator with all new wires still getting no spark. Checked the the pickup and got a reading of 90 ohms. SIP website states if it is not 115 ohms should be replaced. I just bought the pickup! Is it common for these to be bad? Does the 90 ohms reading indicate it is bad? This is so frustrating.
@jamesjohn avatar
UTC

Ossessionato
1970 Vespa Rally 180
Joined: UTC
Posts: 4145
Location: Denton Tx.
 
Ossessionato
@jamesjohn avatar
1970 Vespa Rally 180
Joined: UTC
Posts: 4145
Location: Denton Tx.
UTC quote
I know of one shop that ships crappy parts out of the box.

did you get your pickup from a regular scooter parts shop?
OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
SIP-Scooter. I ordered along with several other things that all seems to be okay.
@ginch avatar
UTC

Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8610
Location: Victoria, Australia
 
Veni, Vidi, Posti
@ginch avatar
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8610
Location: Victoria, Australia
UTC quote
Gorso wrote:
SIP-Scooter. I ordered along with several other things that all seems to be okay.
Write to them and explain. I've found them pretty good about replacing things.
OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
Thanks Ginch, I will write them.
@brentscheffler avatar
UTC

Addicted
'78, '80 P125X, '80 100 Sport, '74 150 Super
Joined: UTC
Posts: 717
Location: Seattle
 
Addicted
@brentscheffler avatar
'78, '80 P125X, '80 100 Sport, '74 150 Super
Joined: UTC
Posts: 717
Location: Seattle
UTC quote
Just out of curiosity, did you replace the ignition coil? I did an EI conversion on my 100 sport and you *must* replace the ignition coil.

This is the one you need:

http://www.scooterwest.com/items/?_pageCCS=t#page=/item_details/P-PX-Ignition-LT-Coil/2288


My first attempt at the EI conversion did not include the new ignition coil and I also had no spark.
OP
@gorso avatar
UTC

Member
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
 
Member
@gorso avatar
1981 100 Sport
Joined: UTC
Posts: 12
Location: Ohio
UTC quote
Thanks Brent, your thread was one of the most helpful when I was doing the wiring. So, the current ignition coil is not compatible with the cdi? When I bought the scooter I did say I was looking for a project, I guess that is what I got.
@brentscheffler avatar
UTC

Addicted
'78, '80 P125X, '80 100 Sport, '74 150 Super
Joined: UTC
Posts: 717
Location: Seattle
 
Addicted
@brentscheffler avatar
'78, '80 P125X, '80 100 Sport, '74 150 Super
Joined: UTC
Posts: 717
Location: Seattle
UTC quote
Gorso wrote:
So, the current ignition coil is not compatible with the cdi?
The ignition coil for points systems do not work with CDIs - different resistance or something. Swapping out the coil isn't too bad, you just have to go slow and be careful.

There is a good write up on the whole process:

http://autos.groups.yahoo.com/group/vespasmallframes/message/30486?threaded=1&l=1
DoubleGood Design banner

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2024 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0290s ][ Queries: 4 (0.0098s) ][ Debug on ][ 313 ][ Thing One ]