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Thinking about fitting a malossi 172 kit on a vespa t5.
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@shepys avatar
shepys
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Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
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Location: Burnham on sea, Somerset England
 
shepys
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@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 385
Location: Burnham on sea, Somerset England
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Hi guys help please

Im thinking about buying a used malossi 172 kit off a friend and installing it on my vespa t5 classic.
The barrow and piston are in good shape all i need is new rings.
Can i just bolt it, up jet it and keep everything as it is with the simonini sport exhaust or does the engine need porting, another crank, bigger carb and another exhaust.
@safis avatar
SaFiS
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1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
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Location: Veria, Greece
 
SaFiS
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@safis avatar
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4538
Location: Veria, Greece
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You can bolt it on and upjet and port it later on an engine split. You'll need a head if it hasn't got one (modified stock or get a new one from SIP). It would be wise to drill the main fuel passage in the carb's float bowl (even on a stock engine)…
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@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 385
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 385
Location: Burnham on sea, Somerset England
UTC quote
SaFiS wrote:
You can bolt it on and upjet and port it later on an engine split. You'll need a head if it hasn't got one (modified stock or get a new one from SIP). It would be wise to drill the main fuel passage in the carb's float bowl (even on a stock engine)…
The head has been modified. When you say port the engine later on could i not port it later on and keep it as it is. And what size do i drill the the main fuel passage in the carb float bowl.
@roland87 avatar
roland87
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'13 LML Star 200, '81 50 Special, '81 P 150 X, '87 PK 50 Nuova, '84 PK 50 S
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roland87
Molto Verboso
@roland87 avatar
'13 LML Star 200, '81 50 Special, '81 P 150 X, '87 PK 50 Nuova, '84 PK 50 S
Joined: UTC
Posts: 1455
Location: Ukraine. Kyiv.
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@safis avatar
SaFiS
UTC
Ossessionato
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4538
Location: Veria, Greece
 
SaFiS
Ossessionato
@safis avatar
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: UTC
Posts: 4538
Location: Veria, Greece
UTC quote
shepys wrote:
The head has been modified. When you say port the engine later on could i not port it later on and keep it as it is. And what size do i drill the the main fuel passage in the carb float bowl.
You can keep it as is but if you happen to split the engine for whatever reason, you can port it to get the best from the kit. On my T5, I have ported the rotary, cut the crank, flowed the carb / tub / inlet and widened and raised the exhaust port…
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