This document provides safety tips and warnings for the BT-28M engine manufactured by FUJI-IMVAC INC., including using a balanced prop, keeping the driveshaft lubricated, avoiding foreign objects, protecting onlookers, securing the fuel line, etc.
This document is the Operator's Manual for the FUJI-IMVAC BT-28M, a 28cc 2-stroke gasoline engine designed specifically for use in model boats. The manual provides essential safety warnings, technical specifications, and step-by-step instructions for preparing, installing, and operating the engine.
| Displacement | 1.70 cu in [28cc] |
|---|---|
| Horsepower | 3.0HP (2.18kw) |
| Ignition Style | Recoil Starter |
| RPM | 4000 - 12,000rpm |
| Fuel Type | Gasoline/Oil mix |
| Weight | 3.13 Ibs [1.4kg] |
| Recommended Spark Plug | Champion RCJ-6Y |
You need to run the engine for about an hour with a fuel mixture that contains a 25:1 (4% oil) fuel/oil ratio.
Once the engine is broken in, use a 40:1 (2.5% oil) fuel/oil mix.
The plug gap should be 0.016" to 0.024" [0.4mm to 0.6mm].
Install the throttle servo at least 12" [305mm] away from the engine to avoid radio interference.