first check your battery if alright check your spark plugs check them for loose or damaged electroids and there colour then check your ht leads (plug leads) then the distributer cap and rotor arm for burn marks and excessive wear check the alternator and belt then the coil and ignition module
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
on 87 ranger it is .44
Change the Spark plugs, if not bin it
AC/Delco
You apply 12 volts to the coil primary and then release it . The electricity will go through the secondary coil and spark the spark pug.
spark plug gap of 0.7 to 0.8 mm for champion spark plugs rc7ycc or rc9ycc
the spark plug gap is 0.7 to 0.8 for champion plugs
There is a dimmer switch on the dash,it needs turning up
Absolutely. Replace any damaged pug wire.
The coil to the spark plug is called an ignition coil on a Yamaha EF600. It is also referred to as the spark coil. These two terms are used for any coil to the spark plug in a vehicle.
Take off the engine cover and remove the HT leads. You will then see the sparkplugs.
the engine is breathing badly,probably worn piston rings or worn valve guides