2. Make sure the battery is charged and the terminals on its terminals and the starter contacts are tight.
3. If the starter rotates but the crankshaft does not turn, this means that the starter overrunning clutch is slipping; remove the starter from the engine and replace it with a new one.
4. If the starter does not rotate when turned on, but a relay click is heard, the cause of the malfunction may be the battery, the relay contacts, or the starter itself.
Note: Before checking the starter, make sure the battery is fully charged.
5. If you do not hear a click from the relay when turning it on, this means that the relay is faulty or there is a break in the relay's electrical circuit.
6. To check the relay's serviceability, install a jumper between the positive terminal of the battery and the "S" terminal on the relay body (see illustration). If the starter starts working, then the relay is working properly and the cause should be sought in the ignition switch, the neutral position sensor or the electrical wiring.
15.6. Location of the starter terminal S
7. If the starter still does not work, replace it or disassemble it, check it and fix the problem.
8. If the starter turns the crankshaft at a very low speed, first check the battery charge level and the tightness of all terminals. The cause of the malfunction may also be the condition of the engine or inappropriate viscosity of the engine oil.
9. After allowing the engine to warm up to normal operating temperature, disconnect the high-voltage terminal of the ignition coil from the distributor cap and short it to ground.
10. Connect the positive lead of the voltmeter to the starter terminal and the negative lead to ground.
11. While turning the engine crankshaft with the starter, watch the voltmeter readings and, after waiting until they stop changing, read the steady-state voltage value. Turn on the starter for no more than 30 seconds. When the starter rotates at normal speed, the voltage should be at least 9 V. If the voltmeter shows 9 V or more, but the crankshaft rotates slower than usual, this means the starter is faulty. If the voltage is below 9 V at low crankshaft speed, the cause of the malfunction is most likely burnt relay contacts.
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