TECH SPECS
7.1
TECHNICAL DATA
TYPE! ! ! ! 4 stroke, single-rotor Wankel-type rotary
OUTPUT! ! ! 48 @ 8500 rpm
TORQUE! ! ! 34 lb-ft @ 4500 rpm
WEIGHT! ! ! approx. 30 lbs
CHAMBER VOLUME! ! 294 cc
MAX RPM (recommended)! 10500 rpm
CLUTCH! ! ! 2-disc centrifugal dry clutch with RENNtech press. plate
DRIVE! ! ! ! 0.5” 428 o ring chain
IGNITION! ! ! magnetic ignition with variable timing
CASING! ! ! water-cooled, Nicasil-coated rotor housing
END PLATES! ! ! water-cooled steel alloy
7.2
TORQUE SPECS
CASING BOLTS! ! M6! ! 15 Nm
NUT, MAGNET BRACKET! M20 x 1.5! 40 Nm
NUT, CLUTCH! ! ! M14 x 1.5! 30 Nm
SPARK PLUGS!! ! M10 x 1! 12 Nm
EXHAUST NUTS! ! M8! ! 22 Nm
7.3
FUELS
FUEL! ! ! ! 91 or better octane unleaded (93 pref.)
OIL! ! ! ! full-synthetic 2-stroke racing oil (Motul 600, etc.)
FUEL:OIL RATIO! ! 40:1 (approx. 1.6 fl. oz per gallon, or 25 cc per liter)
COOLANT! ! ! 30:1 water/coolant (approx. 2.1 fl. oz per gallon)
7.4
CARBURETOR
Std. carburetor for the XR50 is the Bing type 84/32/150, with a main jet (164-168) and a idle
jet 42. Recommended carb setup can be found in FAQ section (pg. 14).
!TIP: use the K&N RC 2320 air filter (included) or get the available airbox adapter.
RENNTECH / AIXRO XR50 ENGINE OPERATOR MANUAL
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General