UTC

Lurker
At4 150
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Posts: 1
Location: Chile
 
Lurker
At4 150
Joined: UTC
Posts: 1
Location: Chile
UTC quote
I need a picture of the plug going here. Since I do not know the position of the cables. Please photo of various points of view. To be able to differentiate well the position. thank you very Much.

Vespa at4 150
Forum member supplied image with no explanatory text
⬆️    About 1 year elapsed    ⬇️
UTC

Lurker
2009 Piaggio Fly 125
Joined: UTC
Posts: 1
Location: Sydney Australia
 
Lurker
2009 Piaggio Fly 125
Joined: UTC
Posts: 1
Location: Sydney Australia
UTC quote
Hey guys, I'm new to the forum and love this post and the detailed information you have all posted.
I have an 09 Fly 125 and like everyone else I want more grunt out of it. Other than this forum there seems to be limited mod info available for the Leader engine.

I was looking at my first major mod to be the Malossi 190 cylinder kit. I had considered the Piaggio 200 kit but a scooter web site stated:
"We hate this kit and don't recommend it to anyone. In our experience, this kit lowers the compression so much that the bike performs almost as well as a stock 150. The other 200 kit out there, from a well known Italian performance parts manufacturer, appears to be this same kit in the seller's own blue box. Nobody who has bought this kit likes it. It might be an improvement if you live in a country where gasoline is 75 octane, otherwise, it's horrible. Do yourself a favor and get the Malossi kit. It does make a big difference.
PIaggio OEM 200 Cylinder Kit. PI844113 844113
"

I see several people here recommending the Piaggio kit. Who has had success with the Piaggio kit? Anyone know if it is as good as the Malossi?
@duane1 avatar
UTC

Addicted
2005 et4
Joined: UTC
Posts: 527
Location: oshawa ontario canada
 
Addicted
@duane1 avatar
2005 et4
Joined: UTC
Posts: 527
Location: oshawa ontario canada
UTC quote
Get the Malossi. That's the better kit.
⬆️    About 3 years elapsed    ⬇️
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
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Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
After 10 years the project is still running good.
I am not happy with the quality of the malossi kit,i suppose that i have to change piston rings as the leak down test said to me.
Forum member supplied image with no explanatory text
⬆️    About 3 months elapsed    ⬇️
UTC

Lurker
Vespa ET4 150
Joined: UTC
Posts: 1
Location: NL
 
Lurker
Vespa ET4 150
Joined: UTC
Posts: 1
Location: NL
UTC quote
dynagrego wrote:
After 10 years the project is still running good.
I am not happy with the quality of the malossi kit,i suppose that i have to change piston rings as the leak down test said to me.
Dynagrego still here?
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
Vesphae wrote:
dynagrego wrote:
After 10 years the project is still running good.
I am not happy with the quality of the malossi kit,i suppose that i have to change piston rings as the leak down test said to me.
Dynagrego still here?
Yes,i replied to your message.
⬆️    About 4 months elapsed    ⬇️
UTC

Lurker
derbi boulevard 150
Joined: UTC
Posts: 2
Location: quebec canada
 
Lurker
derbi boulevard 150
Joined: UTC
Posts: 2
Location: quebec canada
UTC quote
any other reports on this ? also : you have a pm.
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
boucivicsir wrote:
any other reports on this ? also : you have a pm.
I have a problem with the rubber intake between carburetor and cylinder head. It is made of soft rubber and cracks under vibrations because there is no support from the other side of the carb. As i said before, i use a filter pod and not the factory filter box that has a hard intake support tube.
I tried to modify an after market intake for the Yamaha Majesty 125, but there is not much space in the bucket under the seat, so i have to decide if I modify the Yamaha's intake or the bucket under the seat.
Forum member supplied image with no explanatory text
@duane1 avatar
UTC

Addicted
2005 et4
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Posts: 527
Location: oshawa ontario canada
 
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@duane1 avatar
2005 et4
Joined: UTC
Posts: 527
Location: oshawa ontario canada
UTC quote
Coyld the problem be the added stress put on the rubber intake due to the pod.installation The factory intake also supports the carb. Does the pod have something that allows it to be solid mounted. If it is , could you add a rubber gasket to the mount to reduce vibration?
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
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Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
duane1 wrote:
Coyld the problem be the added stress put on the rubber intake due to the pod.installation The factory intake also supports the carb. Does the pod have something that allows it to be solid mounted. If it is , could you add a rubber gasket to the mount to reduce vibration?
It's difficult to add a support bracket to the pod and there isn't an easy place near it to fasten the support bracket.I have to make a more solid intake to support the weight of the carburetor and the pod.
In the meantime i always win at the race of the traffic light.
⬆️    About 1 year elapsed    ⬇️
UTC

Lurker
derbi boulevard 150
Joined: UTC
Posts: 2
Location: quebec canada
 
Lurker
derbi boulevard 150
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Posts: 2
Location: quebec canada
UTC quote
dynagrego wrote:
It's difficult to add a support bracket to the pod and there isn't an easy place near it to fasten the support bracket.I have to make a more solid intake to support the weight of the carburetor and the pod.
In the meantime i always win at the race of the traffic light.
can you add something right under the carb bowl to make it more sturdy?
yes i now it's more than one year old topic
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
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Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
boucivicsir wrote:
can you add something right under the carb bowl to make it more sturdy?
yes i now it's more than one year old topic
I solved the problem by adding 4 gaskets between the rubber intake and the cylinder head.
Now, the PE28 carburetor stays high, and it doesn't touch the cylinder as it vibrates up and down.
⬆️    About 1 month elapsed    ⬇️
@et4love avatar
UTC

Member
02 ET4
Joined: UTC
Posts: 18
Location: Augusta GA
 
Member
@et4love avatar
02 ET4
Joined: UTC
Posts: 18
Location: Augusta GA
UTC quote
This is Great info....
Wish I would have read this before buying the Mallossi 187 B bore kit (for a 02 ET4 150cc). That totally makes sense and is a much better idea... Not to mention you gain the additional real estate..
dynagrego wrote:
External inline image provided by member with no explanatory text


I decided long ago to buy an original Piaggio cylinder piston set from Liberty 200.
It has 2mm bigger diameter than Malossi's cylinder and it is much cheaper:154 euros when malossi costs about 300 euros!
Unfortunately it was not available at local shops for many months and Easy parts company returned my order back after some weeks of waiting.
Now it is avalable but i have already bought a Malossi kit.

Liberty 200 cylinder swap is a common modification and i have friends that have been satisfied with it.
All air-cooled leader engines(125-150-200cc) have the same cylinder head and camshaft so this is not a problem.

Heart transplant
Heart transplant
@crazycarl avatar
UTC

Ossessionato
2007 250 GTS, 1980 P200E, 2010 ThunderFly 190 (SOLD) 2015 Yamaha SMax
Joined: UTC
Posts: 3332
Location: Springboro, OH
 
Ossessionato
@crazycarl avatar
2007 250 GTS, 1980 P200E, 2010 ThunderFly 190 (SOLD) 2015 Yamaha SMax
Joined: UTC
Posts: 3332
Location: Springboro, OH
UTC quote
Did the Liberty 200 have an 4 valve head? I thought I had read somewhere there had been a Leader-based Air cooled motor with a 4 valve head, but never heard anything more about it. Getting the engine to breathe better has always been the weak point. I know you can get a camshaft to address that, but haven't taken that step yet.

My Fly 150 with the 190 kit and Polini upgear will hit 70+mph.
@safis avatar
UTC

Ossessionato
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4071
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: 4071
Location: Veria, Greece
UTC quote
No, 2 valve head...
@znomit avatar
UTC

Veni, Vidi, Posti
LX190 Friday afternoon special, Primavera, some pushbikes
Joined: UTC
Posts: 9876
Location: Hermit Kingdom
 
Veni, Vidi, Posti
@znomit avatar
LX190 Friday afternoon special, Primavera, some pushbikes
Joined: UTC
Posts: 9876
Location: Hermit Kingdom
UTC quote
I thought reviews on the 200cc cylinder were disappointing, likely due to the lower compression ratio compared to the Malossi.
⬆️    About 1 year elapsed    ⬇️
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
Some years after,Malossi C.D.I. failed. It burned its pins and died into a cloud of bad smelling smoke. I don't know why. Old CDI now works fine.
I had to buy a used electrical harness to take its CDI socket.
Malossi's pins and socket pins were welded together from the high temperature, and i had to break the malossi's plastic part around the pins to take them apart.
Forum member supplied image with no explanatory text
@willo avatar
UTC

Hooked
2005 ET4 150
Joined: UTC
Posts: 421
Location: Portland OR
 
Hooked
@willo avatar
2005 ET4 150
Joined: UTC
Posts: 421
Location: Portland OR
UTC quote
That's a bummer, thanks for the update
OP
@dynagrego avatar
UTC

Hooked
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
 
Hooked
@dynagrego avatar
Zip50 hyperscooter 188cc
Joined: UTC
Posts: 158
Location: Athens,Greece
UTC quote
Project report: 35.000km have passed using Malossi 190cc big bore kit.
Cylinder and piston are okay,like new.
But piston ring gap was 0,50mm(normal 0.15-0.30mm,service limit max 0.40).
So i bought a new malossi piston ring set from ebay and now the gap is 0.25mm.
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
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