1.53 in(39mm) x 1.18 in (30mm). 22×10, 23×8, 23×10,24X8,24X9. Ignition : Stinger DC-CDI (Computer Controlled auto advance, electronic ignition system).
Spark Plug: NGK CM6 Type. Requires: Gasoline, 2-cycle oil, ignition battery & propeller. Gasoline-Version : Pre-mixed Fuel, 25-40 (Gasoline):1 (recommended : 30:1). Lubrication Oil : High quality fully synthetic 2 cylinder oil such as Motul 800 2T 100% synthetic racing motor oil, Red line two-stroke racing motor oil, Stihl Ultra high performance 2 cycle fully synthetic engine oil ETC. Break in Propeller : 23X10 (Standard Two Blade Prop).RCGF Stinger Engine package Includes: electronic CDI ignition, muffler, spark plug, gaskets, bolts, throttle arm extension & manual. Engine: 3.32 lb (1508g). 2XMuffler: 5.36 oz (152 g). Ignition Module: 5.1 oz (145 g).
Total: Weight: 3.98 lb (1805 g). Ignition Battery: 7.4V-14VNiCd or NiMH, 7.4V LiFe or 2S LiPo pack. Replacement Spark Plug: NGK CM6 or equivalent.