OS Motors GT22 w/Muffler Rear Carb

This is the OS Engines GT22 Gas Powered Engine with Muffler
and Back Mounted Carburetor.

FEATURES:
Beam installing style permits engine to fit inside cowls that are
    sized for 2-stroke .60-.91 and 4-stroke 1.20 glow engines
Custom-made created rear installed Walbro carburetor with choke rod guide
    incorporated into crankcase that minimizes set-up time
IG-02 electronic ignition handles 4-6 cell NiCd, NiMH or 2-cell LiPo
    and LiFe batteries
Pitts design muffler has enhanced installing bolt holes and webbing at
    high tension points
2 year minimal service warranty through Hobby Provider starting at date of
    purchase

INCLUDES:
GT22 Engine with Muffler, Electronic Ignition Module, CM-6 Spark Plug
    Muffler Gasket, Muffler Bolts and User's Manual

NEEDS:
2-cycle oil with a mix ratio of 50:1 if using Klotz design oil
    (if using other brand name, follow producer's mix ratio or if no
    recommendation, mix at 30:1)
Ignition Battery: 4-6 cell NiCd, NiMH, or 2-cell LiPo
    LiPo battery requires voltage regulator
Propeller: 16x8, 16x10, 17x6, 17x8, 15x10 for break-in
Gas safe fuel tubing and fuel filter

SPECS:
Displacement: 1.35 cu in (22 cc)
Bore: 1.26" (32mm)
Stroke: 1.08" (27.5mm)
Practical RPM Variety: 1,800 - 9,000
Output: 2.66 hp @ 9,000 RPM
Weight:
    Engine: 26.86oz (761.6g)
    Muffler: 4.68oz (132.6g)
    Ignition Module: 3.7oz (105g)
Initial Needle Positions: High Speed Needle-two turns open
    Low Speed Needle-one and a half turns open
Distance Between Mounting Hole Centers Very Same Side: 0.98" (25mm)
Distance Between Mounting Hole Centers Reverse Side: 2.2" (57mm)
Mounting Hole Diameter: 0.197" (5mm)
Length of Muffler Can: 3.9" (100mm)
Width at Mounting Tabs: 2.7" (70mm)
Width of Crankcase Below Mounting Tabs: 1.9" (49.4mm)
Height from Crankshaft Center/top of Cylinder Head: 3.7" (94mm)
Height from Crankshaft Center/Muffler Mounting Hole Centers: (48.4mm)
Length from Drive Hub to Carburetor: 5.5" (139.5mm)
Length from Drive Hub to Center of Crankcase: 2.7" (68.5mm)
Length from Center of Crankcase to Carburetor: 2.8" (71mm)
Crankshaft Size: 5/16-24 UNF-2A