Light brown
It is due to not being burned. The 2-stroke has 2 cycles burn and exhaust if no burn fuel-oil mix exhausts out of the tailpipe. Check for spark.
You will make lots of smoke and likely foul the spark plug and you will need to replace it. The engine is not designed to burn this mixture like a 2 stroke is.
Fuel is injected into the combustion chamber in the form of a sprayed gas and when compressed under great pressure it spontaneously explodes creating the power stroke in a 4 stroke diesel engine.
The past perfect tense is had burned.
When a spark ignites the mixture of gas and fuel in a four-stroke engine, stored chemical energy is converted to thermal energy, which causes the gas and fuel mixture to burn and expand rapidly, generating mechanical energy that powers the engine.
because gas was burn after the spark plug created the spark to burn gas and keep car running.
No spark.
BY GETTING BURN fireblaze AND spark
Past simple: burned/burntPast continuous/progressive: was burningPresent simple: (I/you/we/they) burn; (he/she/it) burnsPresent continuous/progressive: (am/is/are) burningFuture: will burn, shall burn; (am/is/are) going to burnFuture continuous/progressive: will be burningPERFECT TENSESPast perfect: had burned/burntPresent perfect: have burned/burntFuture perfect: will have burned/burntPast perfect continuous: had been burningPresent perfect continuous: has been burningFuture perfect continuous: will have been burning
The coil pack has the spark plug wires, grouped in pairs side by side, right?. The computer fires both spark plug sets, one for power stroke of one cylinder and exhaust stroke of the other paired cylinder. The firing order is therefore only three cycles. Strange! This is to burn all unused gas vapors and cut emisons.
That would be very rare.
Hydrogen gas is highly flammable; you can make it burn with the slightest spark.