This is the 2-stroke O.S. Max 28XZ Truggy Engine. ****** Because of the expressed racing nature of this engine, ****** ****** it is NOT covered by the O.S. ...More

This is the 2-stroke O.S. Max 28XZ Truggy Engine. ****** Because of the expressed racing nature of this engine, ****** ****** it is NOT covered by the O.S. 2 Year Warranty ****** ****** per page 8 of manual ****** Needle Settings: High Speed: 3 turns out from fully closed Metering Needle (low speed): Rotary: flush with carb body Slide: flush then 1/2 turn in Throttle Stop Screw: .5mm out from fully closed COMMENTS: The O.S. Max T-2060 WN Speed Tuned Pipe OSMG2939, OSMG2938 is an ideal exhaust system for the 28 XZ. Flywheel sets are required (OSMG2648 for Mugen, OSMG2649 for Kyosho, both sold separately) for certain truggy models. Some notes on rotary and slide valve carburetors; Rotary carbs offer a larger response in the middle of the power band. This works well for off-road applications when throttle response must be varied. Slide Valve carbs provide greater response at the beginning and end of the power band. This works well for on-road and racing applications for fast take-offs and high speed. jxs 7/06/07 tlw 9/06/07 ir/jxs updt lmm 4/14/09Less