Xray XB8 Instruction Manual

Also see for XB8 Series: Instruction manual Instruction manual Instruction manual Instruction manual Supplementary sheet

Xray XB8 Instruction Manual Manual pdf 5 page image

5PROBLEM CAUSE SOLUTIONEngine does notstart• Fuel tank is empty or carburetor is notprimed• Bad glowplug or dead glowdriver battery• Fuel lines, fuel filter, air cleaner, or muffler isclogged• Engine is flooded due to over-priming• Carburetor is not adjusted properly• Throttle servo linkage not adjusted properly• Fill fuel tank with fuel and prime• Replace glowplug or recharge/replace glowdriverbattery• Clean or replace clogged part(s)• Remove glowplug, turn car over to discharge fuel fromcylinder.Test glowplug and replace if defective• Set idle and main/slow needle adjusting screw tostandard starting position• Move throttle servo to neutral position and re-adjustlinkage(s)Engine starts butthen stalls• Fuel tank is empty• Fuel lines, fuel filter, air cleaner, or muffler isclogged• Carburetor is not adjusted properly• Engine has overheated• Fill fuel tank with fuel• Clean or replace clogged part(s)• Re-adjust idle and main/slow needle adjusting screw• Allow engine to thoroughly cool down and open mainneedle adjusting screw 30° turn richer (CCW)Bad reaction andresponse fromengine• Carburetor is not adjusted properly• Fuel lines, fuel filter, air cleaner, or muffler isclogged• Low fuel pressure from muffler• Re-adjust main/slow needle adjusting screw• Clean or replace clogged part(s)• Properly install pressure line between muffler and fueltankCar is hard tocontrol• Weak transmitter and/or receiver batteries• Low reception from radio antennas• Servo linkages not adjusted properly• Recharge or replace batteries• Fully extend transmitter and receiver antennas• Move servo to neutral then re-adjust linkage(s)Steering does notwork properly• Weak transmitter and/or receiver batteries• Bent linkages or driveshafts• Loose steering components• Drivetrain damage• Recharge or replace batteries• Check tightness of steering components and tighten ifnecessary• Replace damaged partsHandling problems • Shocks are not working properly• Suspension is binding• Improper tires• Rebuild the shocks and replace worn or broken parts• Make sure suspension moves freely. Replace worn orbroken parts• Use different tiresSteering feelssluggish or vague• Suspension is binding• Damaged steering servo• Make sure suspension moves freely, and replace wornor broken parts• Check the steering servo for damage and wear, andreplace/repair if necessaryThe car does notdrive straight• Suspension is binding• Steering trim is off-center• Wheels are loose• Damaged steering servo• Make sure suspension moves freely, and replace wornor broken parts• Adjust steering trim until car drives straight• Check the make sure the wheel nuts are properlytightened• Check the steering servo for damage and wear, andreplace/repair if necessaryTROUBLESHOOTING GUIDE