Aprilia sr50 warning light

For a standard tune-up, the parts needed include an air filter, oil filter, fuel filter, spark plugs, and spark plug wires. You should also have oil, transmission fluid, coolant, windshield washer fluid, and brake fluid available. A tune-up consists of topping off or replacing fluids, changing spark plugs and spark plug wires, changing the fuel, oil, and air filters, and checking the pressures of the tires. More detailed tune-ups run a diagnostic test on the vehicle to check for any codes that indicate additional issues.

For a standard tune-up, the parts needed include an air filter, oil filter, fuel filter, spark plugs, and spark plug wires. You should also have oil, transmission fluid, coolant, windshield washer fluid, and brake fluid available. A tune-up consists of topping off or replacing fluids, changing spark plugs and spark plug wires, changing the fuel, oil, and air filters, and checking the pressures of the tires. More detailed tune-ups run a diagnostic test on the vehicle to check for any codes that indicate additional issues.

Year make model engine size?

get a tune up done. spark plugs, wires , air filter. wouldnt hurt to change the differential fluid. if it has 4 wheel drive then get the transfer case oil done as well and front differential and have the whole viechel greased where ever there is a grease fitting, llike driveshafts, front axle joints. any friction won't help at all.

water pump shaft broke not turning, system not bleed when coolant was put in, thermostate not opening check all this buddy and get back to me take pipes off water pump and see if it spins , bleed the coolant by taking the bolt of the head and let the air seep out if any if pure coolant comes out put the bolt back in quickly and take the thermostate out and put in a glass off hot boiling water and look at it and see if it moves

Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Once you do this and let us know what, if any codes are set, then we can go from there.
There are just too many possible causes for the problem you describe. Example: Sensors like the Mass Air Flow (MAF), Throttle Position Sensor (TPS), Manifold Absolute Pressure (MAP) sensor, Crank Position Sensor (CKP), Engine Coolant Temperature (ECT) Sensor, Intake Air Temperature (IAT) sensor, vacuum leaks, intake air hose leak, Wiring & connectors, clogged intake air filter, bad/contaminated fuel, malfunctioning injectors, poor ignition/spark or spark plugs or wires, Major Engine Mechanical problems, Out of Time, etc. etc. etc.

No codes? Checklist: MAF: Mass Air Flow Sensor, MAP: Manifold Absolute Pressure Sensor, Engine Valves/Low cylinder compression, Fuel Injectors, Fuel Pressure, Tire pressure, vacuum leak(s), PCV: Polution Control Valve, Purge Control Solenoid Valve PCSV stuck open/leaking, Intake Air Hose leaking, Engine Coolant Temperature Sensor, Intake Air Temperature Sensor, etc. etc. etc..
Go to http://www.hmaservice.com/ and register (vehicle by VIN). Afterward, you'll have access to technical information (manuals, wiring diagrams, service bulletins, etc) about your vehicle.