Tune Up Specifications.

turn speed adjusting screw clockwise. It is recommended

that factory setting be tried before attemption any adjust-

ments. Never operate the engine for prolonged periods at

wide open governor setting. Normal setting is 3500 RPM.

Plug #

Mfgr.

3.6.1

Spark Plug Types.

GC46 *

871*

*Upon depletion of stock resistor type plug

CJ8 *

Champ

Champ XJ-S or equal will be provided.

3.6.2

Spark Plug Gap.

.025"

3.6.3

Ignition Point Gap.

.020"

3.6.4

.005" - .007"

Intake Valve Clearance.

3.6.5

Exhaust Valve Clearance.

.009" - .011"

ENGINE PART #SX-1086

Specifications.

Horse power . . . . . . . . . . . . . . . 3 H.P. @ 3600 RPM

Torque . . . . . . . . . . . . . . . . . . 4. 39 Max. @ 3400 RPM

Displacement. . . . . . . . . . . . . . 7.75 Cubic Inches

Stroke . . . . . . . . . . . . . . . . . . . . . 1-3/4 Inches

Bore . . . . . . . . . . . . . . . . . . . . . . 2-3/8 Inches

Fuel . . . . . . . . . . . . . . . . . . . . . . Engine may be operated on

motor gas, aviation gasoline

JP4 Fuel (JP4 in emergency

conditions only)

Type . . . . . . . . . . . . . . . . . . . . . . Four Cycle

Cylinder . . . . . . . . . . . . . . . . . . . Single