This is the FS-91II Surpass 4-Stroke Engine.
This engine does not use a choke valve OR use a return fuel line
to the tank. THERE ARE NO TOOLS OR EXTRA NEEDLE VALVE AS STATED IN
THE INSTRUCTIONS.
FEATURES: New rear-mounted, updraft 60P Carb, Intake Manifold,
and Coverplate. Helix gear-driven camshaft supported by ball
bearings. Ringed piston. Does Not use choke valve, but instead an
electric starter to start. Grease-packed twin-sealed
corrosion-resistant rear ball bearing. Two Year Warranty
INCLUDES: One Assembled Engine w/Carburetor. One type #F Glow
Plug. One Muffler w/Manifold. One Set of Instructions and Decal.
(Wrenches, Choke Valve Extension, and Mounting Template Are No
Longer Included per O.S.) REQUIRES: Fuel: 5%-15% nitromethane with
18% lubricant. Synthetic, castor, or a synthetic/castor blend may be
used. NOTE: Certain four-cycle fuels cannot be used due to low oil
content. However, SOME four-cycle fuels such as the Wildcat 4-Cycle
15% (CATP9109) may be used because it has 18% oil content. When
choosing fuels for this engine, the modeler must be sure to select a
fuel with at least a 18% lubricant content. Propeller (see SPECS)
Starting and Field Equipment
SPECS: Bore: 27.7mm (1.09") Stroke: 24.8mm (.976") Displacement:
14.95cc (0.912 cubic inch) Power Output: 1.6 BHP at 11,000 rpm
Practical RPM Range: 2,000 - 12,000 rpm Crankshaft Thread Size:
5/16-24 Weight-With Muffler: 24.2oz (686g) Weight-Without Muffler:
22.6oz (641g) Valve Clearance: Between .04mm and .1mm (or between
.0015" and .004", measured between the valve tip and rocker arm)
Length: 91.5mm (3.60") from backplate to front of drive washer.
Width: 42.6mm (1.68") width of engine neglecting the mounting
flanges 52mm (2.05") distance between the mounting hole centers
Height: 123mm (4.88") Suggested Prop(s): Stunt planes: 11X11-12,
12X10-12, 13X9 Scale models: 13.5X8, 14X7, 15X6, 16X6, (12X8 &
12.5X7-3 blade) Construction: Aluminum and Aluminum alloys
COMMENTS: A fuel tank of approximately 300cc capacity is
suggested. This allows up to 12-13 minutes flying time. Some
Differences Between 4-Stroke and 2-Stroke Engines; 4-Strokes are
Quieter. 4-Strokes get Better Fuel Economy. 2-Strokes Generate More
rpm (11,000-13,000 rpm with Prop while 4-Strokes rev to around 9,500
rpm) 4-Strokes generate much more Torque and will Swing a larger
Prop. 4-Strokes have a realistic Sound; like a Real Aircraft Engine.
OS no longer includes the gauges, tools, and choke valve extension.
The new Surpass engines (Version II and III) have more power than
their predecessors and also have more corrosion prevention on the
inside of the crankcases. |
