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A part of the exhaust power valve, the system that gives a two-stroke low-end torque and top-end power.
POLINI offers this power valve for BETA EIKON 50, QUADRA 50 and HONDA CAMINO 1976-2007. Many two-stroke engines have an exhaust power valve: a blade that changes the height of the exhaust port according to revs.
The benefits:
Polini Motori started in 1945 in Battista Polini’s bicycle workshop in Alzano Lombardo, near Bergamo, where its headquarters stands today. The family company designs more than 5,000 special parts for scooters and maxi-scooters and states that its production is 100% Italian.
A scored or oval cylinder, or one with damaged plating, loses compression and wears the piston quickly. Measure the bore at every top-end rebuild: beyond the wear limit the cylinder must be replaced or resleeved.
Cross-Mania tip: Check the diameter of the supplied or required piston and replace the top-end gaskets. A big bore may require carburation or fuel-injection adjustment.
Check the exact model and year of your bike in the list below before ordering.
Fits:
BETA EIKON 50 2007
BETA EIKON 50 2006
BETA EIKON 50 2005
BETA EIKON 50 2004
BETA EIKON 50 2003
BETA EIKON 50 2002
BETA EIKON 50 2001
BETA EIKON 50 2000
BETA EIKON 50 1999
BETA EIKON 50 1998
BETA QUADRA 50 2001
BETA QUADRA 50 2000
BETA QUADRA 50 1999
BETA QUADRA 50 1998
BETA QUADRA 50 1997
BETA QUADRA 50 1996
BETA QUADRA 50 1995
HONDA CAMINO 1991
HONDA CAMINO 1990
HONDA CAMINO 1989
HONDA CAMINO 1988
HONDA CAMINO 1987
HONDA CAMINO 1986
HONDA CAMINO 1985
HONDA CAMINO 1984
HONDA CAMINO 1983
HONDA CAMINO 1982
HONDA CAMINO 1981
HONDA CAMINO 1980
HONDA CAMINO 1979
HONDA CAMINO 1978
HONDA CAMINO 1977
HONDA CAMINO 1976
Click on your bike to see all compatible parts.
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