Fuel not accepted smoothly¶
Step 1: Is ignition system in proper condition?¶
Check battery voltage, ignition distributor, spark plugs, ignition coil, ignition timing, etc.
Yes: Go to Step 2
No: Repair or replace damaged ignition components
Step 2: Is engine in proper mechanical condition?¶
If the fuel acceptance is still poor after the electrical test, check for mechanical problems: Compression, basic adjustment of valves and engine oil pressure.
Yes: Go to Step 3
No: Repair or replace damaged components
Step 3: Is the throttle valve switch set coorectly?¶
Yes: Go to Step 4
No: Adjust switch
Step 4: No leaks in air intake system, system in proper condition?¶
See Engine does not start Step 8.
Yes: Go to Step 5
No: Repair leaks
Step 5: Is the auxiliary air device in proper mechanical condition?¶
Visual check of the auxiliary air device: in the cold condition the auxiliary air device must be partly open, but when the engine is warm it must be closed.
Yes: Go to Step 6
No: Replace auxiliary air device
Step 6: Is the air flow meter in proper mechanical condition?¶
For testing, see Engine does not start under Step 9.
Yes: Go to Step 7