This document is an engine instruction manual, emphasizing the importance of reading the safety instructions and warnings before operating the engine, and familiarizing oneself with the controls and features of the engine. It also provides detailed instructions on installation, starting, adjustment, and maintenance.
This document is the owner's instruction manual for the OS MAX-91FX-HGL RING, a high-quality internal combustion engine specifically developed for larger size radio-controlled helicopters. The engine is noted for its power and torque, making it suitable for scale models requiring performance with heavier weights.
The guide covers essential topics including safety warnings regarding fuel handling and operation in open areas, installation instructions for the glow plug and throttle servo, starting procedures, running-in setup, and carburetor adjustments. It also provides an exploded view of engine parts and a list of genuine accessories.
| Displacement | 9.95 cc (0.607 cu.in.) |
|---|---|
| Bore | 24.0mm (0.945 in.) |
| Stroke | 22.0mm (0.866 in.) |
| Practical R.P.M. | 2,000~ 16,000 r.p.m. |
| Power output | 2.0 bhp / 16,000 r.p.m |
| Weight | 633g(22.30z.) |
The model mechanics should be set so that the engine may run below 14,000rpm to ensure quiet flights and prevent damage.
A high-torque type starter is recommended because a standard electric starter may have difficulty rotating the engine when it is cold.
No, these engines were designed specifically for model helicopters and should not be used for any other purpose.