This document is the operator's manual for the BT-86 engine. It provides detailed information on the engine's features, characteristics, operating methods, and maintenance.
The document provides an overview of the FUJI-IMVAC BT-86 engine, which features a 5.2 cu. in. displacement and 7.0hp output with a CDI ignition system. It includes specific instructions for break-in operation using a 25:1 fuel-to-oil ratio.
| Displacement | 5.2 cu. in. |
|---|---|
| Horsepower | 7.0hp @ 8500 rpm |
| Ignition Style | CDI Automatic Ignition Timing |
| RPM Range | 1100 – 8500 rpm |
| Fuel Type | Gas/2-cycle engine oil |
| Weight with Muffler | 7.1 lb [3.2kg] |
The break-in ratio is 25 to 1.
A Champion RCJ-6Y or 7Y is the recommended plug to use.
Check for flooding by rotating the propeller rapidly with the throttle fully opened, or check for dryness.