Made in the USA with chrome silicon steel. New OSSA Engineering heavy-duty clutch springs Fits all engines except 1974 and later Phantom MX (these didn’t use a cushion drive). These won’t loose tension like the factory springs did. New OSSA Engineering cushion drive spring Units include flywheel, stator, coil, regulator and all other hardware needed to install. These are analog (fixed timing) systems the same as Motoplats. This is a CDI ignition with 80-100 watts of 12volt lighting capacity, capable of delivering up to 40,000 volts! VAPE Ossa ignition systems are available for both the large taper cranks and the smaller taper phantom style cranks.
The VAPE External Flywheel Type Ignition System is a magneto based generator with integrated, fully electronic ignition, equipped with a tiny ac regulator to run lighting equipment, thus eliminating the need to run a battery. OSSA Engineering Ignition System with Modern 12Volt Lighting They fit all OSSA models except street bikes. Right side lay shaft bushing loose in the case? Installation of a new Ossa Engineering over sized bushing is now available. We can machine your head or supply you with the information to it yourself. Changes in current fuel require changes in this area for best performance. Reshaping the combustion chamber in the head is a big part of a modern performance upgrade. We can do almost any cylinder port work for your OSSA engine or supply you with the information to do the work yourself.
We can supply you with performance upgrade information on all OSSA engines. Porting specs are available from stock to custom race. Cylinder porting and head combustion chamber reshaping.
We can supply the correct dimensions for a new pipe or to alter the existing pipe. Different pipe dimensions can alter engine performance even with stock cylinder porting.
Because the 2 stroke exhaust has such a large effect on the engine performance, any changes in cylinder porting may require a change in pipe dimensions. Ossa Engineering can design a custom exhaust pipe for almost any OSSA engine application. This is not a thread repair so trials and older pioneers will have to change to a slip fit exhaust pipe. Exhaust OutletĮxhaust flange loose in the Cylinder? Both early or late type cylinders can be repaired with a new OSSA Engineering pressed in exhaust flange ring. Since most of the work we do is custom for each job, please contact us for your special service needs. OSSA Engineering can do any work on your OSSA engine that can be imagined.