Difference Between the Husqvarna 136 & 338XPT

Engine

• Husqvarna 136 and 338XPT chainsaws have different motors. Husqvarna 136 saws have an engine with a displacement of 36 cubic centimeters and a cylinder stroke of 1.26 inches. This unit has an idle speed of 3,000 rpm and produces 2.1 hp at a top speed of 13,000 rpm.

  The Husqvarna 338XPT chain saw utilizes a motor with a displacement of 39 cubic centimeters and a stroke of 1.22 inches. This model produces 2.3 hp at a speed of 9,600 and has an idle speed of 2,800 rpm.

Carburetor, Fuel and Ignition

• The Husqvarna 136 and 338XPT use differing carburetor and similar ignition systems. Husqvarna 136 saws have a Walbro WT 289 carburetor and a fuel capacity that measures 0.86 pints. The ignition for this model is a Phelon capacitor discharge system that uses a Champion spark plug.

  The 338XPT model uses a Zama C1Q EL33 carburetor with a 0.72 pint fuel tank. This motor also has an SEM capacitor discharge ignition but uses either a Champion RCJ 7Y or NGK BPMR 7A spark plug.

Oil

• Husqvarna 136 and 338XPT saws have automatic oil pumps. The 136 model has an oil tank with a capacity of 0.31 quarts. This pump distributes between 0.20 and 0.27 ounces of oil per minute at 8,500 rpm.

  The pump for a Husqvarna 338XPT chainsaw supplies between 0.10 and 0.24 ounces of oil per minutewhen operating at 8,500 rpm. The oil tank for this model has a capacity of 0.15 quarts.

Cutting

• The Husqvarna 136 has a recommended bar length of 13 inches and a usable cutting length of 12.5 inches. The pitch measures 0.325 inches for the chain, which travels at 53.5 feet per second when this model is at full power.

  Husqvarna 338XPT saws have a standard bar length of 14 inches and a recommended bar length between 12 and 14 inches. The pitch of the chain is 0.375 inches. The chain has a speed of 60 feet per second when this unit is at full power.