low needle setting is not too rich. (2) Check the balance of the propeller and
spinner.(3)Ensure the engine’s mount bolts are secure. (4) Check the ignition timing (bad
ignition timing could cause severe damage). (5) Check the structure of the
engine box
and firewall on your plane.
Ignition Wire Diagram
Maintenance
Please note that as a high performance two-stroke engine, certain parts of the GP____ may wear
out more quickly than others. Piston rings, needle bearings, pistons, spark plugs etc. may need
to be occasionally replaced outside of the warranty in order to maintain peak performance.
Please check the condition of the screws on the engine, firewall and propeller regularly to ensure
the screws are not loose and have not fallen out. Also check that all screws are tight to the
required torque rating on a regular basis. The following chart lists the size of the screws and
torque specifications.
90-100 in. lbs. (We strongly recommend
to replace new screws, do not re-use
them)
Aluminum Cylinder Base Bolts
90 in. lbs. (We strongly recommend to
replace new screws, do not re-use them)
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