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FG-21 (1.26) 4-Stroke Gas Engine: BN
Item No.
SAIEG21
Product Details
Quick Links
Manuals & SupportKey Features
- Gasoline engine lowers operating costs as much as 90%
- Latest carb technology makes for easier tuning and operating
- 21cc displacement in a 17cc case
- New valve seat design
- New, smaller magnetic ignition system fits into tighter cowl installations
- Horizon Hobby recommends the use of Red Line or Power Model synthetic oil only, at a mix ratio of 16:1 – 20:1
Overview
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.
Product Specifications
Specs
| Benchmark Prop | APC 16 x 6 @ 8800 rpm |
| Bore | 1.26 in (32.0mm) |
| Crankshaft Threads | M8 x 1.25 mm |
| Cylinders | Single |
| Cylinder Type | AAC |
| Displacement | 1.25 cu. in. (20.52 cc) |
| Engine (Only) Weight | 24.1 oz (0.69 kg) |
| Power Type | Gas |
| 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 |
| RPM Range | 2000-9500 |
| Stroke | 1.02 in (26.0mm) |
| Total Weight | 31.2 oz (0.89 kg) |
Club Points Information
The points displayed are points you will earn based on your membership level, and the cost value of the product. Be sure you are Signed In to your account to see the most accurate points you will earn on your purchase.
| Points Per | Classic | Premier |
|---|---|---|
| $1 Spent | 1 | 1.25 |
200 points = $5 Discount
Points displayed here does not include Bonus Points for select product. If the product is marked with the Bonus Points badge you will also earn the extra "Bonus Points" points listed in this banner in addition to the calculated points displayed
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