Saito Engines FG-21(1.26) 4-Stroke Gas Engine: BN

Functions

Gasoline engine reduces operating expenses as much as 90%
Most current carb technology produces much easier tuning and operating
21cc displacement in a 17cc case
New valve seat design
Smaller sized magnetic ignition system suits tighter cowl setups
Horizon Hobby recommends using Red Line or Power Design synthetic oil only, at a mix ratio of 16:1 – 20:1

Overview

There are a lot of benefits to opting for gas, like cleaner operation and less expensive fuel. But Saito™ 4-stroke gas engines offer modelers more, specifically a few of the most outstanding power-to-weight ratios in their class. The new FG-21 engine is no exception. Based on the groundbreaking Saito FG-20 engine, it loads 21cc of power into a 17cc case. Accompanying the additional displacement is the current carb technology, updated exhaust valve seats and, naturally, the sweet 4-stroke noise Saito engines are famous for.

Specifications

Type: 4-stroke
Displacement: 1.25 cu in (20.91cc)
Bore: 1.26 in (32.0mm)
Stroke: 1.02 in (26.0mm)
Cylinders: Single
Total Weight: 31.2 oz (0.89 kg)
Engine (Only) Weight: 24.1 oz (0.69 kg)
Muffler Weight: 2.9 oz (83 g)
Crankshaft Threads: M8 x 1.25mm
Benchmark Prop: APC 16 x 6 @ 8800 rpm
Prop Range: 15 x 8 to 16 x 8 2-blade; 14 x 9 to 15 x 7 3-blade
RPM Range: 2000–9500
Fuel: 20:1 gas-to-oil ratio; EVOX1001Q synthetic oil recommended
Muffler Type: Cast screw-on
Cylinder Type: AAC
Carbohydrate Type: 2-needle Saito™ pumped carb