O.S 35430 FS155-A P Ring 70R F6020

This is the FSa-155-P Four Cycle Engine with Pump System from O.S. Engines.

Features

• O.S 35430 FS155-A P Ring 70R F6020

• Ideal for 120 size scale and sport models and aerobatic models requiring stable power and linear throttle response

• PD-08 pump and 70R carburetor integrated with regulator ensures stable fuel delivery regardless of model attitude and fuel level

• F-6020 three piece design muffler with center heatsink

• New internal lubricating system eliminates breather tubing from the crankcase

• Two year limited warranty through Hobby Services beginning at date of purchase

Specifications

• Displacement: 1.548 cu in (25.36cc)

• Bore: 1.323" (33.6mm)

• Stroke: 1.126" (28.6mm)

• Practical RPM: 2,000 - 10,000 RPM

• Power Output: 2.6hp @ 10,000 RPM

• Engine Weight: 28.40 oz (805g)

• Muffler Weight: 3.35oz (95g)

•   Carburetor Settings-

• Needle Valve: 2-1/2 - 3 turns from fully closed

• Mixture Control Valve: Factory set, make only small adjustments if needed, after adjusting needle valve as described in manual, turn 30° to lean idle mixture or 90° counterclockwise to richen mixture then back again 45° clockwise

• Width at Mounting Tabs: 2.6" 67mm)

• Crankcase Width below Mounting Tabs: 1.8" (47mm)

• Length from Drive Washer to rear of Carburetor: 5" (127.5mm)

• Height from Mounting Tab to Pushrod Cover: 4.5" (114mm)

• Height from bottom of Crankcase to Pushrod Cover: 5.4" (138.6mm)

• Distance between Mounting Hole Centers Same Side: 0.98" (25mm)

• Distance between Mounting Hole Centers Opposite Side: 2.3" (58mm)

• Distance/front Mounting Hole Center to Drive Washer: 2.5" (64.5mm)

• Distance/ Center of Engine to Drive Washer: 3.03" (77mm)

• Crankshaft Size: 5/16-24

Contents

• FSa-155-P Four Cycle Engine with PD-08 Pump System, 70R Carburetor F-6020 Muffler, Header Pipe, type F Glow Plug, Needle Valve Extension Cable, Instruction Manual

Requirements

• Fuel: Glow fuel with 5-20% nitro content and no less than 18% lubricant content

• Propeller: 16x8-12 or 17x8-12

• Glow Starter

• Field equipment