.31 (5.
(EN) NOTICE All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.
(EN) • Always ensure that gasoline and fuel are stored in a clearly marked container well away from the reach of children. • Always mix and store your fuel safely in a sealed, waterresistant container specifically made for gasoline. • Always store fuel in a cool, dry location. Do not allow fuel containers to come in direct contact with concrete, as the fuel may absorb moisture.
(EN) Fuel Mixing Precautions and Guidelines • Always blend gasoline with two-cycle engine oil at a 14:1 • Only use gasoline mixed with two-cycle engine oil. ratio. • Only use Dynamite® Pre-Mix Two-Cycle Engine Oil • Never use a 40:1, 32:1 or 25:1 gas-oil ratio. (DYNE4105). Do not use any other kind of oil. • Never use glow (nitro) fuel. • Always use 92–98 Octane RON (Europe) and 91–93 Octane AKI (US) gasoline. Gasoline 2-Cycle Engine Oil 14:1 Starting the Engine 1.
(EN) Engine Break-In Breaking in your new engine is critical for proper performance. Failure to follow the break-in procedures can cause engine damage and shortened engine life. Always use a 14:1 gasoline:oil mixture during the break-in process and when running the engine. If you change fuel or run in dramatically different environments (hot/cold, high/low elevation, etc.) you will need to adjust the carburetor needles to prevent overheating and maintain proper performance.
(EN) Break-In Procedure (Continued) Fuel Tank #1: 1. Drive the vehicle in a figure 8 for the first half tank of fuel. Keep the throttle position between ¼–¾ throttle. Do not exceed ¾ throttle. 2. During the second half of the tank, move the throttle position between ¼ and full throttle. Do not hold full throttle for more than one second. NOTICE: Engine temperature should not exceed 195°F (90°C) or damage to the engine could result. Fuel Tank #2: Move the throttle position between ¼ and full throttle.
(EN) Engine Tuning After the engine is broken in, you can tune it for optimum performance. When tuning, it is critical that you be cautious of overheating as severe damage and pre-mature wear can occur. Before Making Adjustments High-Speed Needle (top, left side). Close the high• Ensure there are no leaks or obstructions in the fuel tank, speed needle by turning it clockwise until it stops, fuel tubing or the carburetor. Any faults can affect engine then turn it counterclockwise 17 hours out (open).
(EN) Adjusting the High-Speed Needle Turn the high-speed needle until you achieve the ideal engine temperature and amount of exhaust smoke. The engine should have a noticeable smoke trail during initial acceleration and fade to a minor smoke trail when the engine reaches full throttle. If the engine exceeds proper running temperature, 250º F (121º C), richen the high-speed needle immediately. If the engine temperature is very low considering normal running temperature, then lean the high-speed needle.
(EN) Maintenance and Trouble Shooting Spark Plug Test The spark plug used with your engine (DYNE0550) is designed specifically for the engine and is only available from Dynamite. Only use the spark plug with the designed cylinder head button (DYNE0513), as the head button creates the spark and controls the spark plug gap. 0.6–0.7mm 0.24–0.27 in CAUTION: Before testing the spark plug, clean up spilled fuel and close fuel containers. Failure to do can result in injury, fire or damage.
(EN) Troubleshooting guide Possible Cause Soultion Engine does not start Out of fuel. Engine flooded. Refill the tank and follow starting instructions. Remove the spark plug. Install the spin-start and turn the engine over for 2 seconds. Replace and test. Air filter is clogged. Check and replace if necessary. Fuel mixture is old or bad. Mix fresh fuel per instructions. Spark plug is not working. Check the spark plug and CDI and replace if necessary. Throttle servo failed/Setup is wrong.
(EN) Parts List # Description Part # Description Part 1 Cylinder Head Screws (16) DYNE0510 20 Throttle Barrel DYNE0530 2 Cylinder Head Upper DYNE0511 21 Low-Speed Needle DYNE0531 3 Cylinder Head Lower DYNE0512 22 Throttle Barrel Boot DYNE0532 4 Head Button DYNE0513 23 Carburetor Ball Link/Ball End DYNE0533 5 Head Shims (0,1mm (2), 0,2mm (2)) DYNE0514 24 High-Speed Needle Valve DYNE0536 6 Piston/Sleeve/Connecting Rod DYNE0516 25 High-Speed Needle Holder DYNE0537 7 C
(EN) Exploded View DYNE0505 Only 1 35 2 36 3 24 19 4 25 5 19 27 26 19 28 19 21 22 23 6 8 18 7 20 19 13 33 34 15 32 12 29 30 31 17 16 14 12 11 10 9
(EN) Limited Warranty What this Warranty Covers - Horizon Hobby, LLC (Horizon) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship at the date of purchase.
(EN) additional protection. Ship via a carrier that provides tracking and insurance for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted at our facility. An Online Service Request is available at http:// www.horizonhobby.com/content/_service-center_renderservice-center. If you do not have internet access, please contact Horizon Product Support to obtain a RMA number along with instructions for submitting your product for service.
(EN) Warranty and Service Contact Information Country of Purchase United States of America Horizon Hobby Contact Information Horizon Service Center (Repairs and Repair Requests) servicecenter.horizonhobby. com/RequestForm/ Horizon Product Support (Product Technical Assistance) Sales United Kingdom Service/Parts/Sales: Horizon Hobby Limited www.quickbase.com/db/ bghj7ey8c?a=GenNewRecord 888-959-2306 4105 Fieldstone Rd Champaign, Illinois, 61822 USA sales@horizonhobby.
(EN) Compliance Information for the European Union Declaration of Conformity (in accordance with ISO/IEC 17050-1) No. HH2014053005 Product(s): .31 Gas Engine (5.
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