Saito FG-21 (1.26) 4-Stroke Gas Engine: BN SAIEG21

There are a lot of advantages to going with gas, like cleaner operation and cheaper fuel. But Saito™ 4-stroke gas engines give modelers more, namely some of the most impressive power-to-weight ratios in their class. The FG-21 engine is no exception. Based on the groundbreaking Saito FG-20 engine, it packs 21cc of power into a 17cc case. Accompanying the extra displacement is the latest carb technology, updated exhaust valve seats and, of course, the sweet 4-stroke sound Saito engines are famous for.

Features:

• Horizon Hobby recommends the use of Red Line or Power Model synthetic oil only, at a mix ratio of 16:1 – 20:1
• New valve seat design
• Latest carb technology makes for easier tuning and operating
• Smaller magnetic ignition system fits into tighter cowl installations
• 21cc displacement in a 17cc case
• Gasoline engine lowers operating costs as much as 90%

Specs:

Benchmark Prop: APC 16 x 6 @ 8800 rpm
Bore: 1.26 in (32.0mm)
Carb Type: 2-needle Saito pumped carb
Crankshaft Threads: M8 x 1.25 mm
Cylinder Type: AAC
Cylinders: Single
Displacement: 1.25 cu. in. (20.52 cc)
Engine (Only) Weight: 24.1 oz (0.69 kg)
Ignition Weight: 4.0 oz (113 g)
Muffler Threads: 13mm
Muffler Type: Cast screw-on
Muffler Weight: 2.9 oz (83 g)
Oil Type & Content: 20:1 gas-to-oil ratio; EVOX1001Q synthetic oil recommended
Plug Type: 1/4-32 Spark Plug (SAIG20120)
Prop Range: 15 x 8 to 16 x 8 2-blade; 14 x 9 to 15 x 7 3-blade
Recommended Fuel: Gasoline
RPM Range: 2000-9500
Stroke: 1.02 in (26.0mm)
Total Weight: 31.2 oz (0.89 kg)