Classic Cycles Technical Resources
53
The new connectors are easily identified because they are made of brass instead of aluminum. These new
connectors are interchangeable on any of the old type pumps. When they are installed on old type pumps,
the ball and spring must be eliminated from the connecting bolts.
Any old type pump can be converted to the latest style by installing 2 of these new outlet connectors. The
old type union connector has been abolished.
A simple check of the oil injection system can prevent serious damage when the machine is operated. Dirty
or plugged oil lines, tanks, or filter could prevent the oil flow from the oil tank to the pump.
Whenever a new cycle is serviced, the oil supply line to the pump should be removed at the pump and
checked for oil flow.
If a good supply of oil is not available at this line, check the tank, filter and lines and correct as necessary.
Oil must flow freely from this line to supply the engine with the proper lubrication.
ELECTRICAL EQUIPMENT – 50, 60 Sport, 90cc
A. Ignition System:
The ignition system consists of a single magneto coil to
provide the necessary current, a condenser, contact breaker
assembly, an externally mounted dual winding high
tension coil, and spark plug.
Contact Breaker:
The contact breaker assembly is mounted on the magneto
armature plate. The actuating cam is located on the
crankshaft. The contact points should be checked
periodically. If the contact points are rough or pitted,
replace them. When installing new contact points, carefully
wipe the surfaces with a lint free paper to remove any
residue of grease from the point surfaces which will
drastically affect the functioning of the ignition system.
Ignition Timing: Incorrect ignition timing can cause problems not directly related to ignition such as poor
fuel consumption, overheating, hard starting when engine is hot, spark plug burning or fouling, and even
extreme engine damage. Therefore, when diagnosing an engine problem, always check and adjust timing
first.
CAUTION: Never, under any circumstances, should an engine be run with advanced timing. There is,
however no danger in running the engine with the ignition slightly retarded. In fact, higher RPM and
increased performance will be attained if timing is retarded 2 degrees from the factory setting.
TO SET TIMING:
1. Remove the magneto case cover and locate the timing marks. One mark is engraved on the side of the
flywheel and the stationary mark is a cast "pointer" on the magneto case cover. (See Fig. 111)
2. Rotate flywheel until points are visible through opening in flywheel and timing marks are approximately
aligned.
3. Connect one lead of an ohm meter and continuity tester to one of the black wires leading from the
magneto. Connect the other lead to any convenient ground on the machine.
4. Position the flywheel timing mark above the magneto case (stationary) mark. Very slowly rotate the
flywheel in a counter-clockwise direction (direction of engine rotation) and stop precisely at the point at
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