CYLINDER KIT WITH POWER VALVE SYSTEM

CYLINDER KIT WITH
POWER VALVE SYSTEM
Bolt
On
suitable for:
MINARELLI AM 6 Engine
P/N Ø 40mm:
P400130100004
P/N Ø 50mm:
P400130100005
€ 450.00
PRICE LIST
PRICE LIST
VAT EXCLUDED
€ 487.50
VAT EXCLUDED
ATHENA is proud to be the first to present a Racing moped Cylinder kit with Exhaust Valve. This revolutionary Cylinder kit has been
developed from ATHENA R&D department for the popular Minarelli AM6 engine in two displacements: 40mm – 50cc and 50mm –
80cc.
The CYLINDER, made out of Aluminum alloy and plated with special Nickel Silicon coat, has been designed and developed in order
to guarantee the highest performance ever seen in this category of cylinders.
Its big water jackets guarantee best refrigeration, higher reliability and constant performance.
The Exhaust Port is provided with Two Boost Ports and Power Valve System to obtain high torque and horsepower over a wider range
of RPM.
The cast-lite piston, with flat head and Molycote finishing, has been especially designed for this cylinder and tune to the cylinder head
which has a very high compression ratio and squish area.
Piston
Cylinder
Head
Gasket kit
Top End
Exhaust valve gasket
S410480302001.A/B
070016/R
S410130308006
P400130160001
S410130021003
S4C05000003A/B
S41316186
S410130308007
P400130160002
S410130021003
Cylinder Kit
Piston sel. A/B
P400130100004
40mm - 50cc
P400130100005
50mm - 80cc
Ring
DETAILS
SPARE PARTS
TECHNICAL
CHARACTERISTICS
Ø 40 mm / 50 cc
Ø 50 mm / 80 cc
Exhaust valve
P400130303001)
components
(P/N
Closer view of the two cylinder heads respectively for the 40mm and 50mm bore
Cross section view of the cylinder which
show the exhaust valve
TECHNICAL DATA
OEM
Ø 40
40.3 mm
40 mm
50 mm
STROKE
39 mm
39 mm
39 mm
DISPLACEMENT
49.7 cc
49 cc
77 cc
12:1
17:1
14:1
CYLINDER BORE
COMPRESSION RATIO
WHAT’S THAT?
POWER VALVE SYSTEM
Ø 50
The two-stroke Power Valve System
varies the duration of the exhaust port
open time, reaching excellent low RPM
and top-end performances.
ATHENA Power Valve System uses a
guillotine valve moved by the pneumatic system, which exploits the exhaust
gas pressure.
At low RPM, when the exhaust gas has
low pressure, the Power Valve is kept
closed by a spring inside the pneumatic system.
While increasing RPM, the pressure
of the exhaust gas raises causing the
pneumatic system to move the guillotine valve upwards.
PNEUMATIC CONTROL SYSTEM
CONTRAST SPRING
BLADE VALVE
OPTIONAL
Athena suggests to use also:
- P400130309001
- P400010444001
- 075414
- 062414
- P400130850204
- P400130400204/1
- 009512
- 075705
- 080006
- 070206
Minarelli racing clutch case;
Crankshaft rebuilding kit
(2 bearings SKF 6303TN9/C3 + 2 oil seals);
RACING crankshaft;
SPECIAL crankshaft;
Complete gasket kit;
Engine oil seals kit;
Intake reed valve;
Intake manifold for carburettor Ø 20/26;
Carburettor Dell’Orto PHBG 19 DS;
Carburettor Dell’Orto PHBG 21 BS DS;
Fantic Caballero SM tuned by ATHENA in occasion of the PRESS DAY for the presentation of the Exhaust Valve
Cylinder Kit