Question about Yamaha Xv1100 Virago Xv 1100 1989-1998 Left Side Air Box Cover 1rm-14603-00

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Rear plug soots up and fouls - Yamaha Xv1100 Virago Xv 1100 1989-1998 Left Side Air Box Cover 1rm-14603-00

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Airway from filter blocked, choke stuck on?

Posted on Jun 13, 2014


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1 Answer

What is causing the spark plug to foul out with black carbon

check for oil gas mixture or its bad rings

Jul 02, 2014 | Garden

1 Answer

Spark plugs fouling

black soot is overfueling. And as it is a trail bike operating in dirt and mud conditions I would be looking at changing the air filter first. Change to a hotter plugs may help (select plugs up in the heat range ). Check reason for extra fuel ( choke flapping on or float level )

Dec 01, 2013 | Cars & Trucks

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Black soot coming from the exhaust would be excessive fuel.
The list includes injectors, fuel pressure regulator, fouled plugs, faulty coil, dirty air filter, and so on.

Jul 06, 2012 | 1996 Nissan Sentra

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Why are my plugs fowling out with a gas smell???

The bike is probably getting too much gas. Are the plugs wet with gas or covered with black soot? If so, that's why the plugs are fouling.

Jun 16, 2012 | Yamaha FZX 750 Motorcycles

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Our Husqvarna YTH2148 mower has been in the shop twice and we can't figure out what's causing black, sooty fouling of the spark plugs.

Hi, change the engine oil. It has become contaminated with fuel. Also fit an inline fuel tap and turn it off whenever the mower is not in use. Basically the carby has leaked fuel into the engine oil, the engine then draws the fuel vapour from the oil through the crankcase vent into the carby creating the problem you have. Regards Phil.

Jun 03, 2012 | Husqvarna Garden

1 Answer

Black smoke from exhaust, rough idle, black soot on plugs

signs of a bad fuel pressure regulator-- the vehicle will run rough, the engine will not start ( usually in the mornings,) many times engine starts but stalls shortly after starting. a bad regulator can result in fouled plugs. replacement is only cure. 1- black soot on plugs-2-black smoke from tailpipe-3- running rough-4- stalling, good-day! repost if need be.

Aug 10, 2011 | 1994 Suzuki Sidekick

1 Answer

How do I check spark plugs?

norm - brown grayish-tan deposit on side electrode.
carbon fouled - black, dry fluffy soot on insulator tip and electrodes
oil fouled - wet, black, oily deposits on " " " "
burned - blisters on insulator tip, and electrodes
worn - severely erroded or worn electrodes

May 31, 2010 | 2006 Buell Lightning XB12S

1 Answer

Fouled spark plugs

this is helpfull???? fould plugs! what with? oil? or soot?
if its oil its getting past the pistons and being burnt in the engine,,,worn out engine! if its soot,,,its the carb ,,its running to ritch,,,,or the choke is sticking on,,,

Feb 05, 2010 | 2006 Enfield Enfield Thunderbird

2 Answers

2.5 4 cyl engine Code P0171....Black Soot in the exahaust and water...Black soot on the plugs. I have replaced the catc and muffler, MAP sensor, coolant temp sensor, coil, plugs, wires, dist cap,cleaned...

Black soot in water? You mean water in the tailpipe or black soot in the coolant in the radiator? Have you tested the manifold air temp sensor and the throttle position sensor? If they were OK, you may just have worn injectors that are allowing a bit too much fuel flow or a bad spray pattern. In the meantime, you could try replacing the plugs with a set that is one heat range hotter. If the plugs become slightly fouled, that can cause a snowball effect which makes the situation worse.

Nov 11, 2009 | 1997 Jeep Wrangler

2 Answers

My 98 Suzuki VL1500 has a weak spark to the rear cylinder. i've replaced plug, plug wire, coil, inition module, and stator. I've switched coils and plug wire from one cylinder to the other. The weak spark...

it is probably not a weak spark. if you are determing this because the plug is sooting up and fouling and or the bike is missing or just not running right. your carbs need rebuilt. know of same problem with friends bike. tried eveything. coils igniter etc.. check out g man give them a call they will explain what is going on with your bike

Jun 13, 2009 | 2001 Suzuki VL 1500 Intruder LC

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