This allows optimum performance from standard 87 to 92 octane fuels. Allows the engine to run fuel with up to 15% alcohol content.
Molytech Cylinder Head - Molybdenum impregnated and hardened aluminum/magnesium cylinder head with drop forged 74cc piston and moly-rings, increases compression, reduces heat and extends engine life. Must be installed by drilling 2 holes in bar on 16" bar or 3 holes in bar on 20" bar - slotting of bar not acceptable. Must have the ability for minute adjustment from 0" - 5.5 ". Must have the ability to hold plunge depth at 1" increment from 1" - 5" on 16" bar and from 1" - 7" on 20" bar. Must be adjustable in maximum plunge depths at 1" increments. Ruler must be printed on reflective material for night use. Must have maximum cutting depth of 5" on 16" bar or 7" on 20" bar. Must have angled foot to help guide the bar into the surface and to keep bar from hitting the ground in the starting position. Must have handle to provide additional lifting position. Front guard must slide over back guard. 
Gauge must cover the entire chain path.Nuts must be same size as bar nuts to facilitate the use of the bar wrench tool for gauge removal.Must be easily removed and installed with 2 nuts.Must be retrofit to any 16" or 20" bar/powerhead combination.
Must be fabricated from Stainless Steel. Carbide must have a 15 degree hook angle. Carbide must have a 30 degree top plate angle. Carbide must have 537,000 lbs per square inch transverse rupture strength. Chain speed must be 121.6 Feet Per Second at 13,500 RPM. Bar must have 1 year wear warranty, excluding sprocket nose. Bar must be 16 or 20 inches long, with optional length bars available. Drive sprocket must be 1.780 inches diameter. Drive sprocket must be floating rim and drum, self cleaning and ported. 160" diameter oil holes to reduce plugging for fast cooler cutting. Sprocket nose must have overlapping ear nose/body attachment. Sprocket nose must be replaceable with single rivet fastening system. Bar must be 1 piece precision ground with induction hardened and square polished rails. Safety Standards Commission Safety Standard Part 74 Fire Fighting standard R408.17442 (1) OSHA, ANSI, UL, EN, EPA-2 Standards. Saw must meet Department of Labor General Industry. Saw must include: powerhead, bar, chain loop, tool kit, manual, 1 bottle of two cycle oil, 1 quart of bar oil and bar scabbard. Saw must be single cylinder, 2 cycles with loop scavenging. Power head must run on a 50:1 fuel oil mixture. Power head dry weight with 20" bar and chain loop must not exceed 20.55 lbs. Power head dry weight must not exceed 14.55 lbs. Saw must have positive position on/off switch for safety (Momentary switch is not acceptable.). 10 second chain break that conforms to all ANSI standards. Saw must have safety inertia activated. Saw shall have large Billet Aluminum D-Ring handle for easy starting with gloves. #CHAINSAW FEET PERSECOND FULL#
Saw shall have full wrap handle for operator protection and safety.
Power head must be isolated from handle assembly by three (3) "springs" to dampen vibration.Cylinder shall have asymmetrical cooling fins and shall be cooled by a high capacity fan.Rod shall have silver plated needle bearings.Piston shall be made from a low friction alloy and Molybdenum impregnated.Crankshaft shall be supported by two (2) drop groove ball bearings.Crankshaft shall be balanced three (3) piece drop forged.060" stainless steel plate must protect muffler. Muffler will not exceed 116dB at maximum RPM.Carburetor must be isolated from the cylinder by a fiberglass spacer, rubber boot and isolating wall to prevent vapor lock.Muffler must be side ported USFS and ANSI approved with spark arrestor.Carburetor must be isolated from the cylinder by vibration dampening rubber boot and isolating wall to prevent vapor lock.Covered foam air filter to protect it from debris and water.Carburetor must be air injected for improved performance.Carburetor must be an all position diaphragm type with integral fuel pump.Electronic Ignition must have lifetime warranty.Centrifugal clutch must engage at 3500 RPM.
Power head shall idle at 2700 RPM and must obtain a maximum unloaded speed of 13,500 RPM. Power head must develop 5.7 horsepower at 9600 RPM. Saw power head must have 4.5 cubic inch (73.5 cc displacement with a 2.05-inch (52 mm) molybdenum impregnated bore and 1.34 inch (34 mm) stroke. Genesis Rescue Tools Warranty Information.
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