The BT-43EIS is a 43cc [2.6ci] displacement engine manufactured by FUJI-IMVAC INC. It has a horsepower of 4.2 hp / 11,000 rpm and features electronic ignition. The engine weighs approximately 1820g and runs on a mixture of gas and 2-cycle engine oil.
This document is the Operator's Manual for the Fuji-Imvac BT-43EIS, a 48cc two-cycle gasoline engine designed for use in model aircraft. The manual provides essential safety warnings regarding propeller balance, fuel types, and operating conditions to prevent engine damage or injury.
| Displacement | 48cc [2.6ci] |
|---|---|
| Horsepower | 4.2 hp / 11,000 rom |
| Ignition Style | Electronic Ignition |
| RPM Range | 1,200 — 11,000 rpm |
| Fuel Type | Gas/2-cycle Engine Oil |
| Weight | Approximately 1820g w/ Muffler |
The recommended spark plug is a Champion RCJ-6Y.
The plug gap should be 0.4mm to 0.6mm [0.016" to 0.024"].
For normal running, use a 150:1 (0.65%) oil content ratio in un-cowled installations.
Do not use silicone fuel line; use vinyl or neoprene rubber fuel line.