XX Racer Series

The AMF Classic Snowmobiles

XX Racer Series

es-afkspin.com

AMF Ski-Daddler's Limited Production Factory Race Sleds

1971 XX-1800

A very limited build machine, the XX-1800 was the largest of the XX series racers. This model was not shown in any Ski-Daddler brochures and you had to know someone to get one. The 793cc Hirth "Honker" triple cylinder engine was rated at 80hp. This is one of the most difficult Ski-Daddler models to find, owners covet them, and they were only built in 1971.

1971 XX-1800, 793cc Hirth Triple

The XX-series racers were produced from 1970 (limited) to 1972 in engine sizes from 292cc to 793cc. The '72 models were only available in two models, XX-1300 and XX-1340, and featured aluminum chassis. These are probably the best handling snowmobiles AMF ever produced. The 1972 models can also be identified by their blue hood stripes.

1972 XX-1300 with Aluminum Chassis

1971 XX-1650

The XX-1650 was probably the most successful of the larger AMF racing snowmobiles. The XX-1650 featured the Hirth 650 "Red Baron" two cylinder engine and 18" cleated track. The XX-1650 was produced in larger quantities than the XX-1800 and was the largest race model published in the Ski-Daddler brochures. Still, many of them were ridden hard, they are somewhat rare to find and very sought after by collectors.

The 1971 XX-1400 and XX-1440 race models featured the unique AMF "BP" engines. The BP engine was a Hirth bottom end featuring an AMF-manufactured top end. BP features include full circle crankshaft, reed valve induction, single ring pistons, angled spark plug heads and dual Bendix float-type carbs. The Bendix carbs require external fuel pumps which were mounted at the base of the engine just in front of the seat.

AMF Classic Snowmobiles, 1966 to 1975