North&Wing&S,LSA&Pilot&Operating&Handbook&
Model:&Scout&X,C&912&
Version 2.2
Released Date 3-14-2012
Page 44
distilled!water!and!antifreeze!in!your!cooling!system.!!Antifreeze!should!be!free!of!
silicates!and!phosphates,!or!the!seal!on!your!water!pump!will!be!damaged.!!The!
radiator!is!filled!through!the!expansion!tank!located!above!the!engine.!
7.6.4.& Fuel&Pump&&
The!fuel!pump!pulls!fuel!from!your!fuel!tank!and!supplies!it!to!your!carburetors.!!The!fuel!
pump!works!off!of!an!eccentric!cam!in!the!engine.!!The!fuel!pump!should!be!carefully!
inspected!for!leaks!before!every!flight.!!!
7.6.5.& Fuel&Gage&Sending&Unit&
Some!trikes!come!equipped!with!an!advanced!Princeton!Capacitive!Fuel!Level!probe.!!
It!provides!very!accurate!fuel!level!sensing!that!can!be!calibrated!to!the!owner’s!
preferences.!!That!is,!the!owner!can!calibrate!the!sending!unit!and!matching!gage!so!
that!he!knows!how!many!gallons!of!fuel!remain!available!when!the!gage!reads!¾,!½,!or!
¼!of!full.!!Detailed!instructions!for!this!sending!unit!installation,!replacement,!and!
calibration!are!given!in!Appendix!A!of!this!manual.!
!
7.6.6.& Gearbox&&
The!gearbox!takes!the!high!RPM!output!of!the!engine!and!reduces!it!down!to!the!proper!
RPM!range!for!the!propeller.!!The!gearbox!uses!engine!oil!for!lubrication,!so!it!is!
important!to!use!an!oil!recommended!by!Rotax!with!a!gear!additive.!!(See!Rotax!engine!
manual!or!SIA912A016!current!revision!for!details).!
#
7.7.#
Recommended#Fluids#
!
The!following!are!North!Wing!recommendations!for!fluids!in!your!Scout!XAC!912!TRIKE.!!
!
"
!
Fuel&
–!87!octane!minimum.!!Rotax!approves!the!use!of!gas/ethanol!mixture!up!to!
10%!only.!!NonAEthanol!fuels!may!be!used!in!addition!to!100LL!for!short!periods.!
See!Rotax!recommendations!in!SIA912A016!current!revision!if!using!100LL.!
"
!
Oil&
A!High!quality!motorcycle!oil.!!Use!oil!formulated!with!a!gear!additive.!If!you!
do!decide!to!switch!brands,!it!is!recommended!that!you!empty!all!of!the!oil!out!of!
your!engine!and!change!the!oil!filter!before!adding!the!new!oil.!!Switching!oil!
brands!is!strongly!discouraged.!!For!Rotax!oil!recommendations!see!Service!
Instruction!SIA912A016!current!revision.!
!
You!must!also!maintain!the!proper!oil!level!in!the!oil!tank!for!the!912!engine.!
(Located!on!left!side!of!engine)!Keep!the!level!up!to!the!fill!line!on!the!dip!stick.!
!
"
!
Coolant
!A!Your!Scout!XAC!912!TRIKE!should!always!contain!a!50/50!mix!of!antiA
freeze!and!distilled!water.!Use!only!antiAfreeze!that!is!free!of!both!phosphates!
and!silicates.!!In!addition,!use!only!distilled!water.!!See!Rotax!Service!Instruction!