The Grumpy Dumpies

Type: Moped
Year: 1978
Make: JC Penney
Model: Pinto
Engine: Puch ZA50

This is my frankenbike of sorts, I gathered parts here and there from a couple of different mopeds and put them together to make this. Everyone wants a top tank bike right? That's what all the cool kids have. I figured that rather than picking up a stock top tank moped I'd make my own.I finally had enough stuff gathered over the winter of 2012-2013 to make it rideable. I call it the Grumpy Dumpies because I built it while my wife and I had triplets. Thus my life was filled with grumpy dumpy diapers during the process (and still is).

Fuel System

Fuel System Part Type	Name	Notes
Carburetor	21mm Dellorto PHBG
Main Jet	90
Idle Jet	40
Starter Jet	60
Needle	W7
Atomizer	262 AU

Transmission

Transmission Part Type	Name	Notes
Front Sprocket	20T
Rear Sprocket	40T	40t on the rear makes it easy for me if I swap the engine with an e50.

Exhaust

Exhaust Part Type	Name	Notes
Pipe	MLM Rev Run	Rev-Runs are no longer made, it's a great city blasting pipe. Mine is made for kits with an angled exhaust post, but the linked version is for a flat port.

Additional Components

Component Type	Name	Notes
Front Suspension	Kawasaki Kx80 Forks	Shortened springs roughly 4"
Front Disc Brake	Kawasaki kx80 Caliper and Rotor
Speedometer	Trail Tech Vector

Custom Modifications

Modification	Description
Chopped and braced	seat post chopped, cross brace added. Bike was too low so I built a platform to raise the seat up and redid the cross bar.