North&Wing&S,LSA&Pilot&Operating&Handbook&
Model:&Scout&X,C&912&
Version 2.2
Released Date 3-14-2012
Page 43
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Engine&Break,In:&
Few!things!will!impact!the!life!of!your!engine!more!than!properly!breaking!it!in.!!The!
Rotax!engine!manual!outlines!a!very!specific!and!precise!procedure!for!priming!the!oil!
system!of!the!912!engine.!!The!process!takes!about!15min!to!complete.!Your!Rotax!912!
engine!is!broken!in!at!the!factory.!However,!we!still!recommend!that!you!run!your!
engine!1/2!hr!the!first!time!before!flying!to!see!if!any!problems!show!up.!!
!
Engine!temperatures!range!A!Quick!Ref.!!For!“break!in”!and!flying!
!
CHT!=!300º!F!
!
EGT!=!1620º!max!
!
OIL!=!120º!min!–!285º!max!
!
Always!refer!to!the!Rotax!912!operators!manual!for!break!in!and!running!procedures.!
!
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7.6.#
Engine#Systems#
!
In!addition!to!the!engine!itself,!there!are!several!other!engineArelated!components!on!
your!Trike:!
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&
7.6.1.& Exhaust&System&&&
The!exhaust!system!provided!is!engineered!to!provide!optimal!performance!and!
reliability!for!your!engine.!!The!exhaust!system!should!never!be!altered!in!any!way.!!The!
joints!between!the!sections!of!the!exhaust!should!periodically!be!lubricated!with!antiA
seize!compound!to!allow!the!joints!to!remain!flexible.!!The!springs!and!the!rest!of!the!
exhaust!system!should!be!carefully!inspected!before!every!flight.!Optional!ceramicA
coated!exhaust!is!available.!!
7.6.2.& Carburetors&and&Air&Filters&&
The!dual!Bing!carburetors!supplied!with!your!engine!come!preAset!from!the!factory!for!
optimal!performance.!!Under!normal!flying!conditions,!your!EGT!readings!should!be!
between!1500º!and!1600º!degrees!F!at!cruise!throttle!(and!should!never!exceed!1620º!
F).!!If!your!EGT!readings!fall!outside!this!range,!you!will!need!to!adjust!your!carburetors!
to!compensate.!!(See!section!of!engine!maintenance!manual!on!carburetors!for!
instructions).!
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7.6.3.& Radiator&&
Your!liquidAcooled!engine!uses!a!North!Wing!designed!and!manufactured!radiator!to!
keep!the!coolant!at!the!optimal!temperature.!!The!radiator!and!all!coolant!hoses!should!
be!inspected!for!leaks!before!every!flight.!!It!is!also!very!important!to!use!a!50/50!mix!of!