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        This is the 2-stroke O.S. Max 25XZ (P) 1/8 scale 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.                    ******

FEATURES: Designed for 1/8 scale truggy racing competitions
          Meets ROAR regulations
          ABC piston and liner construction "A"luminum piston fitted to a
            "B"rass cylinder liner that is "C"hrome plated
          Three needle 21JN slide valve carburetor
          8mm red carb insert for smaller tracks that restrict air intake
          Ten fin blue anodized cooling head with inner head button
          P3 ultra hot turbo glow plug

INCLUDES: O.S. Max 25XZ (P) Truggy Engine with instruction manual, 8mm carb
            reducer, exhaust gasket, dust cap set, instruction manual and P3
            turbo glow plug

REQUIRES: Fuel: 10-30% nitro content (20% for break-in)
          Air Filter: MSFG1660
          Exhaust system depending on vehicle, see COMMENTS
          Track equipment

SPECS:    Displacement: 0.25 cu in (4.09cc)
          Output: 3.1 PS, 3.06 HP/33,000 RPM
          Bore: 0.689" (17.5mm)
          Stroke: 0.669 cu in (17mm)
          Practical RPM Range: 4,000-39,000 RPM
          Weight: 13.05oz (370g)
          Distance between Mounting Holes Same Side: 0.83" (21mm)
          Distance between Mounting Holes Opposite Side: 1.4" (37mm)
          Length from Backplate to Drive Washer: 2.6" (65.6mm)
          Width of Mounting Flanges: 1.8" (45mm)
          Width of Crankcase Below Mounting Flanges: 1.2" (31.6mm)
          Distance from Crankcase Center to Drive Washer: 1.7" (44mm)
          Height/bottom of Mounting Flanges/top of Cylinder Head: 3.7" (93.2mm)
          Height/bottom of Crankcase/top of Cylinder Head: 4.3" (109mm)
          Needle Settings: Preset at factory, start engine as is. If
            adjustments are ever required, make them in small increments.
               High Speed: 3.5 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 25XZ.
          Flywheel sets are required (OSMG2648 for Mugen, OSMG2649 for Kyosho,
            both sold separately) for certain truggy models.

                                                                   jxs 02/15/10
                                                                         ir/jxs



– If you need more information, use these O.S. resources –

Click Here: Manufacturer's Product Web Page
E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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