72108100 O.S. Engines Flex FS70-91S/70U/FL70/FS/81A 120mm 1111A OSMG2684

This Flexible Tubing Replaces your Existing Header and Allows you to Re-Route your Silencer Farther Away from the Engine or Cowl. This ONLY Fits the Following Engine(s): FS-90 (old), FS-120 (old), FS-70 Surpass, FS-91 Surpass, FT-120 II, FT-160

Features

• 72108100 O.S. Engines Flex FS70-91S/70U/FL70/FS/81A 120mm 1111A OSMG2684

• Uses the silencer that came with the engine (it replaces the header)

• Comes in 2 lengths 120mm (this one) and 240mm (OSMG2672)

• Reroutes the Exhaust to a More Convenient Location

Specifications

• Length (neglecting threaded part): 120mm (4.72")

• Length (overall): 143mm (5.63")

• Thread Size on Nut: 10.5mm

• Diameter of Flex Pipe: 12mm (.47")

Contents

• One Flexible Exhaust Tube

• Two Pipe Nuts

Comments

• This pipe should NOT be bent in a diameter that is less than 4 times the radius of the pipe (44mm or 1.73")

• Bends in the pipe should be as far as possible AWAY from the threaded part of the pipe. Final adjustment should be made in steps of only 2-3° at a time. Repeated adjustment to alter the shape of the pipe will weaken the pipe and cause it to break.

• It is recommended that you use the EX exhaust headers with this flex pipe if you need a bend right at the exhaust outlet on the cylinder head.

• These are available in a "within fuselage" configuration (OSMG2624) and a "outside fuselage" configuration (OSMG2625).