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FS155-a Alpha Series 1.55 4-Stroke Pumped Engine
Item No.
OSMG0998
Backorder
FS155-a Alpha Series 1.55 4-Stroke Pumped Engine
Item No.
OSMG0998
$499.99
Price reduced from
$799.99
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Product Details
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Manuals & Support200-size power in a 120-size package!
How do you get 200-size power from a 120-size engine? O.S. calls it the FS155-a. Since the FS155-a is a pumped 4-stroke, you’ll enjoy 2.6 hp at all times, regardless of tank position, attitude or fuel level. Its novel recirculation system bathes working parts in constant lubrication, for less friction and wear!
- Also included: F-6020 muffler, Type F glow plug & PD-08 pump.
- The same 2.6 horsepower as many 200-size power plants — with the dimensions and weight of a 120-size engine.
- Because it's a pumped 4-stroke, you’ll enjoy plentiful power regardless of tank position, attitude or fuel level.
- Instead of oil venting through the crankcase, it’s re-circulated to lubricate working parts — reducing friction and wear as well as cowl cleanup.
- Includes the 70R regulating carb for superior throttle response and precise fuel metering.
- 2-year limited warranty.
Product Specifications
Specs
| Bore | 1.32 in (33.6 mm) |
| Carb Type | O.S. 70R with PD-08 pump |
| Crankshaft Threads | UNF5/16-24 |
| Cylinders | Single |
| Displacement | 1.548 cu in (25.36 cc) |
| Engine (Only) Weight | 28.4 oz (805 g) |
| Power Type | Glow |
| HP | 2.56 hp @ 10,000 rpm |
| Muffler Weight | 3.35 oz (95 g) |
| Plug Type | Type F glow plug |
| Product Height | 5.4 in (138.6 mm) from bottom of crankcase to rocker cover |
| Product Length | 5.0 in (127.5 mm) from carburetor to drive hub |
| Product Width | 2.6 in (67 mm) at mounting tabs |
| Prop Range | 16 x 8 - 17 x 12 |
| Recommended Fuel | 5-20% nitro fuel with no less than 18% lubricant content |
| RPM Range | 2,000 - 10,000 rpm |
| Stroke | 1.13 in (28.6 mm) |
| Total Weight | 32oz (900g) |