History
AMF mopeds were mildly popular from the mid-1970s through the early 1980s and split into two completely different machines. See the bike in person before you buy — model numbers starting with "C" often mean McCulloch, "A" often means Minarelli, but AMF rebadges are inconsistent.
The infamous McCulloch Roadmaster (model designations often starting with "C") mounts a BHE900 chainsaw engine in a plastic box over the rear wheel and drives the tire through friction. The frame is a single spindly tube forward of the seat post. Top speed hovers around 15 mph. It was cheap, everywhere at estate sales, and genuinely American-assembled — though Columbia Commuters of the same era used German Sachs and Solo engines. Collectors keep them as quirky trophies; tuners usually swap the motor entirely.
The Minarelli V1 AMF (often "A" models) is a normal tube-frame moped dressed in plastic bodywork — reliable, parts-friendly, with a plastic fan shroud instead of cast aluminum. That version is the one you actually want to ride.
McCulloch case halves include plastic that warps on first heat cycle, creating an unfixable air leak. If you inherit a friction-drive AMF, budget for a motor swap rather than a top-end kit.
Quick specs
| McCulloch version | Rear friction drive, ~15 mph |
| Minarelli version | V1 tube frame, plastic cladding |
| Origin | USA-assembled |
| Buyer note | Confirm engine type before purchase |
Buying & ownership
When shopping a used AMF Roadmaster, run a warm compression check against a known-good bike, confirm the engine turns freely, inspect frame rust (seat tube, down tube, dropouts), verify title and VIN match, and take a test ride for clutch grab and idle stability. Budget a carb clean, fresh plug, fuel lines, and final-drive service on any “runs good” listing.
Use the full buying guide checklist before you pay, and confirm legal class in your state via US moped laws.
Related on MopedMasters
- All 25 classic mopeds — compare platforms
- Manuals & PDFs — factory literature when available
- Guides hub — jetting, porting, maintenance
- Tuning calculators — port timing, intake, pipe, oil mix
- Maintenance hub — carb, oil, storage basics
FAQ
- Is this a moped or a scooter?
- MopedMasters focuses on pedal-capable / classic moped platforms with chain or geared drive — not modern CVT scooters. See moped vs scooter.
- Where do I start if I just bought one?
- Fresh fuel, plug, air filter, chain slack, and a careful first ride. Then work through the maintenance hub before performance parts.
- Can I use the online calculators on this bike?
- Yes for 2-stroke singles — port timing, intake length, pipe layout, and premix all apply. Start at the tools hub.