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fit a smaller main jet and or move the needle jet c clip up one position. also use decent fuel, leaded fuel is best; aviation fuel if in NZ fit a smaller main jet and or move the needle jet c clip up one position. also use decent fuel, leaded fuel is best; aviation fuel if in NZ
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How is carbon build up caused on spark plugs?
Dry sooty deposits (aka carbon build-up) usually indicate either a too-rich fuel mixture, or weak ignition. This can cause misfiring, hesitation, and hard starting. Check that the plugs are the correct heat range. Also check that the air filter isn't clogged. Check for engine management, fuel system, or ignition system problems.
What corrective action for black carbon build up on poulan lawn mower spark plugs?
The fuel/air mixture is slighly on the rich side. Try closing the needle valve about 1/8 turn.
Why does your 1986 Honda 350 trx always foul spark plugs you use ngk dr8es-l plugs and equivalent champion plugs?
Whatever engine you have, whatever plug you use, if the plugs are fouled, like very black,sometimes with bits of black carbon on them, then you are running too rich. Have the carbs adjusted. Too much fuel, not enough air.
What is wrong with the engine in a 1990 Pontiac grand prix if it still misfires when you replaced the plugs and wires?
What size engine? 3100 motors are fairly common for fuel injectors that need professional cleaning. Ignition coil pack may be another source, coolant getting into the cylinder. When you pulled the plugs out which cylinder had the black carbon build up? That is your troubled area.
Why are the spark plugs black on my 1993 Toyota tercel?
if the spark plugs are black because your car is running too rich. your plugs are fouled.
How do you change the 8 sparkplugs for a Mazda B2300 pickup?
pull out one of the plugs, and if the threaded part is turning black from carbon then either clean them up or replace them
Location of Chevy Aveo spark plugs?
If you are not able to located the spark plugs on a car, you need not be working on it. If you can't use the correct grammar, you shouldn't be using a computer... The spark plugs are under the black plastic cover on the top of the engine. The cover is held on by 4 Allen screws.
Where is choke located on 98 heritage softail?
The choke (actually an enricher) is actuated by a black plastic knob located above and slightly to the rear of the horn cover on the left side of the bike. Use it only as little as is absolutely necessary or it will cause the spark plugs to foul and carbon will build up in the combustion chambers.
What is the best plugs for 1995 Ford Aspire?
as long as the gap is correct the plugs don't matter.
What is the correct spark plug gap for a 327 Ci?
the plugs are already gapped On edit: That is not an answer, and you never install plugs without checking the gap. The correct answer is .035".
What can cause an Jeep Liberty to knock and smoke?
Bad gas or diesel fuel. Bad injector, timing, air cleaner plugged, fouled plugs, carbon build up to name the most common.
When do the plugs need to be changed on a 2004 Honda civic?
take them out and look at them and determine for yourself. if the plug looks like it has carbon built up already that sucks, also the plug needs to be cleaned or replaced. this is a new car you might as well keep the sparkers fresh so you can slow down carbon build up from week combustions do to week worn out spark plugs.
