61FX O.S. Engine  [OSMG0561]

All FX machines include remote needle valve - the big event many expected concerning!

A long crankshaft provides more secure attachment for spinner, prop and nut

Double ball bearing construction adds durability and durability

Semi-square head type produces more fin area to boost cooling capability

Each motor is sold with an excellent carburetor and muffler with adjustable exhaust way and integrated anxiety tap

61FX and 91FX feature a remote needle valve that can be put two techniques, to help you avoid cowl modification and protect your plane's scale lines; 160 FX remote needle is set up 3 ways

REQUIREMENTS

• Inventory Numbers: OSMG0561
• Displacement: 0.607 cu in
• Bore: 0.945 in
• Stroke: 0.866 in
• Practical rpm: 2,000-17,000
• Production: 1.90 hp @ 16,000 rpm
• Weight: 19.4 oz
• recommended Props:
• Tuned Pipe: 12x9, 12x10, 12x11
• Sport: 12x6, 12x7, 12x8, 13x6, 13x7