SH 4.57cc engine is made from high quality materials and designed for long-lasting performance. And is engineered for superior torque and durability allowing you to unleash the full potential of your 1/8 off-road rc car.<br><br><br><br>Features:<br>Provide 4 horse power.<br>2 stroke technology.<br>With great stability glow-plug.<br>More powerful、 more reliable、 and easier to use.<br>Allows superior torque and reduce parts stress.<br>Double needle carburetor in aluminum-plastic composite construction.<br>Made from high quality materials and designed for long-lasting performance.<br><br>Specifications:<br>Brand: SH<br>Model: SH-28-P8<br>Displacement: 4.57cc<br>Speed: 36000rpm<br>Power: 4hp<br>Exhaust position: rear<br>Suit for: 1/8 nitro powered RC car<br>Item weight: 406g<br><br>Package Information:<br>Package size: 13 * 12.5 * 7.5cm / 5.1 * 5 * 3in<br>Package weight: 489g / 1.08lb<br>White box package<br><br>Package List:<br>1 * SH 28-P8 4.57cc Engine<br>1 * Glow-plug<br><br>FAQ of the Engine:<br>1.The engine fails to start<br>Replace the glow plug or charge the battery.<br>Clean or replace the clogged part.<br>Remove the glow plug and discharge fuel.<br>Set the idle adjusting screw to the original position.<br>Set the servo to neutral then re-adjust it.<br>2.The engine can start but stall immediately.<br>Clean or replace the clogged part.<br>Re-adjust idle adjusting screw and needle valve/low-end mixture screw.<br>Allow the engine to thoroughly cool down and turn the needle valve open at the angle of 30 degrees.<br>3.Poor reaction response on the engine<br>Re-adjust needle valve/low-end mixture screw.<br>Install the pressure line from the muffler to the fuel tank correctly.<br>4.The vehicle becomes difficult to control<br>Replace or charge the batteries.<br>Extend the transmitter antenna fully to obtain better receptions.<br>Set the servo to neutral then re-adjust it.