Sharing exactly the same mounting pattern as the 61FX, the 91FX offers 47% more power with almost no weight penalty!

Just like all FX series engines the 91FX has the rear needle valve assembly with the addition of a variable fuel inlet location in addition to the adjustable main needle orientation. To ease hand starting a ringed piston setup is emplyed.

Give your model a power boost from this compact powerhouse.

Specification
Weight: 550g 19.40oz	Propeller Range: 15x8 16x6-8 17x6 14x7 3blade
Displacement: 14.95cc 0.91cu in.	Bore: 27.7mm 1.09in.
Stroke: 24.8mm 0.980in	Power Output: 2.8PS@15000 RPM
Practical RPM: 2000-16000