HI HARRY,
1929 MODEL 2 SUNBEAM SPORTING SIDE VALVE 350CC, WIDE RATIO 3 SPEED GEARBOX. VERY RELIABLE, EXCELLENT REAR BRAKE, WEAK FRONT BRAKE, OLD STYLE OILING SYSTEM WITH SIGHT GLASS FEED ON PUMP.( NOT A PROBLEM) BUT THEY CAN WET SUMP IF LEFT FOR A WHILE AND SMOKE THE STREET OUT.
NO WEAKNESSES BUT ONLY PUT THIN OIL IN PRIMARY TO JUST TOUCH CHAIN OR YOU MAY HAVE CLUTCH SLIP. USE 1/2 AND 1/2 OF GREASE AND GEAR OIL IN GEARBOX TO PREVENT LEAKS. ( FACTORY RECOMMENDED)
SUNBEAM PERFORMANCE IS ON PAR WITH 1950's BIKES
OF THE SAME CAPACITY SO THEY ARE NOT FLAT !
THERE IS A CLUB FOR MARSTON SUNBEAMS, IF YOU ARE INTERESTED SEND ME A E-MAIL AND I WILL FORWARD DETAILS.( CLICK ON MY USER NAME )
BEAMA