PRE-FLIGHT CHECKS
(every 5 – 10 hours of flying)
1 Frame/ Prop
Guard Check for loose bolts/nuts or cracks
2 Harness Check all belts, material for tears, worn or burnt parts of harness.
3 Propeller Check for cracks, chips in blades; sufficient prop and guard
clearance; loose or missing prop bolts/nuts.
4 Gas tank
Remove cap, check inside and outside for cracks and holes. Check
bolts are tight on top of tank. Check fuel line for scuffs or kinks.
Remove dirt or change filter if blockage is discovered.
5 Crankshaft Turn prop slowly, listen for compression and check for “grinding
metal” sound
6 Reduction unit Check for loose bolts and excess play in propeller shaft bearings.
7 Reduction belt Check for proper tracking, belt s uarely in Pulley track. Look for
cracks or worn spots on belt.
8 Cylinder head
Crank case Check for cracks and oil leakage.
9 Spark plugs Check gap clearance (0.8 mm ± 0.1) check for burnt electrodes and
carbon deposits. (every 10 hours)
10 Throttle lever Throttle lever/cable move smoothly and return.
11 Kill switch Button depresses and returns.
12 Starter motor Pinion gear activates and returns. Grease if necessary.
13 Electrics Check for broken wires and loose connections.
14 Battery terminals Check for loose terminals, heat bubbles, corrosion etc.
15 Carburetor
settings
Check idling, and full power rpm settings. Adjust as directed in this
manual- see Carburetor Adjustments.
