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DEADLINES	INSPECTIONS	TO REPLACE
DURING AND AFTER RUNNING-IN	by sight all the screws and the seal of the motor head after the removal of the air conveyer.
before each engine starting	remember the check list, see also : engine starting
after first 5 hours	all the screws (remember the 4 screws inside the air conveyer) >
after first 10 hours	remove the gear oil, check and clean the magnetic tap for metal parts	refill with 50 cc of 80-140 grade oil
every 25 hours	Guarding net propeller: inspections Inside cleaning of the pressurized gas pipe (only for float-type carburetor) muffler elastic shock absorbers
deadlines	TO CHECK	TO REPLACE
every 50 hrs.	intake reeds (elasticity and sealing) cleanliness around the clutch bell cleaning and/or decarbonizing of the head and piston piston ring sealing (compression test) spark cap	spark plug gear oil - 50 cc of 80 140 grade gear oil piston ring, (following the result of compression test)
every 100 hrs.	crankshaft sealers cranckshaft roller bearing (tollerance and noise) clutch diameter and clearance string, springs and plastic parts of the starter system roughness and bore of the cylinder. May be necessary a polishing and a new piston with the adequate size	piston roller-cage bearing piston ring propeller screws and nuts clutch connectors and springs (2 pads version ) reductor oil (50 cc grade 80-140)
every 150/200 hrs.	ball bearings (tollerance and noise)	piston cranckshaft sealers cooling fan
every one year (even if the engine has not been used)	gas pump and/or carburetor diaphragms crankshaft sealers all plastic parts wood propeller	rubber shock absorbers gasoline pipes
DEADLINES	INSPECTIONS	TO REPLACE

bolts and knots	Metric	metric wrench (mm)	torque (N.m)	torque (lbf.in)
motor cylinder-head studs	M6	hexagon 10	9 do check for the symmetric fastening.	80
prop	M6	Allen 5 - hexagon 10	9 / 11 go to prop setting	80 - 100
engine elastic mountings	M6	Allen 4	10 special directions : do not twist the mountings while screwing, do not use screws longer that the standard ones, the screw thread must not enter more than 6 mm	90
engine elastic mountings	M8	hex 13 or Allen 6	15 special directions : do not twist the rubber mounting while screwing, do not use screws longer that the standard ones, the screw thread must not enter more than 8 mm .	140
5 mm fastening for diaphragm carburetor and plastic flange	M5 (Black anodized aluminum)	Allen 4 or hex 8	4
crankshaft nuts (clutch and ignition flyweel)	M 10 x 1,25	hexagon wrench 17	35 right screw thread	330
spark plug			please refer to manufacturer manual (remind the 2 mm washer, use 2,5 or 3 mm washer with very poor octan number )
muffler flange	M6	hexagon wrench 10	hand fasten and stops 2 mm before the compression of the spring (see the instruction at end of this table )
engine mountings
miscellaneous	4 mm	attention: reduce by 50% with screws made of aluminum or short threads on aluminum, reduce by 60% with screw on plastic	2,5 - 3
miscellaneous	5 mm		4 - 5
	6 mm diameter		9 - 11
	8 mm diameter		20 - 24
for each bolt/nut you can use 1 or 2 drops of medium strength screw glue

spark plugs	NGK B9ES NGK B9EG or similar	for low temperatures
	NGK B10ES NGK B10EG or similar	for high temperatures
starting string	Polyamide 3,5 mm, length 110 cm
net straining rope	coated Kevlar 1,3 mm
gas pipe	6mm 55cm, 4mm 20 cm we strongly advise the use of original spare parts
gas filter	paper filter porosity of 20 micron porex filter inside the tank
gas wire	1,2 mm
safety gas wire (metallic gas handle before 2004)	2 mm o 1,2 mm