Hi JBurlewski,
I will gladly help you identify & locate any parts you need. I have a rather large collection of original NOS Whizzer parts, and offer some for sale. Some parts I am not willing to sell, but I can put you in contact with other collectors to supply any parts you may need.
99.9% of all vintage parts can be found; in fact it is easier to find parts for the vintage Whizzers compared to the new edition versions [1999 to 2009].
After looking at the picture of your bike, I doubt it is a WZ/S4 Schwinn. All WZ & S4 Schwinn had the frame "crimped" to clear the rear belt, and 99% had the extended brake arm. All had the HD spring on the front forks, front Schwinn brake, and factory bent pedal crank arms. Most had 12 ga [.105”] spokes with S-2 rims, however some had the 11 ga [.120”] spokes. Another clue is to look at the fender cutout for the belt; the WZ & S4 had a complete section removed to clear the belt, whereas modified fenders [as per the instructions in the kit] had 2 cutouts to clear the belt. All WZ & S4's were maroon with ivory trim. The maroon turns to a rusty looking brown over a long time, however the bottom of the fenders, inside the frame [steering frame tube, pedal crank housing, etc], inner chain guard, and any area covered up will maintain the vibrant maroon color.
From the picture, you appear to have a really nice Whizzer to start with and the majority of the parts are correct, such as the tank, Tillitson shut-off glass bowl, controls, motor, clutch, clutch handle, wheels, front forks, seat, belt sheave, etc. The bike also has the Schwinn front brake, which is worth large sums of money. Almost all WZ & S4 parts will fit your bike, and are available, if you wanted to “restore” it to that version.
You can use the serial number [under the pedal crank housing] to determine the year, if made during or after 1948 [factory burned down and records were lost prior to 1948].
The serial numbers of the motor will also “narrow” down the year of the Whizzer. The serial number will start with the letter “H”. If lower than 120XXX the motor will have ¼” head bolts, if later it will have 5/16” head bolts.
There are several “suspect” parts, such as the rear stand doesn’t look Whizzer, the pedal crank arms look to be bent “different”, and the exhaust manifold is from a later model [“300” and up] motor. The “correct” rear stand is available. The cast iron exhaust manifold, used on the “H” & “J” motors is available. And the pedal crank assemble is easy to find and bend correctly.
I only know of one part, difficult to find, and it is the Torrington needle bearing in the side cover. Torrington stopped making it many years ago, and the supply is running low. All gaskets, seals, bearings [not including the Torrington needle bearing], lifters, heads, bolts, camshaft, points, condenser, manifolds pistons, rings, valves, valve springs, wrist pin, etc are currently available. If the crankshaft needs rebuilt, there are several collectors to chose from.
Lets get started!!!!!!!!!
Have fun,
