What causes blue smoke from motorcycle exhaust?

What causes blue smoke from motorcycle exhaust?

Blue smoke is a result of spark plugs being contaminated with a rich fuel/air mixture from the cylinders. This is indicated by a shiny and black layer of excess oil on the plugs. Worn out piston rings or valve seals results in the oil from leaking out of the cylinder, which also causes blue smoke.

What causes a motorcycle to have black smoke?

Black or gray smoke often indicates a clogged air filter or your bike is running too rich. If you have a motorcycle with a carburetor, you need to adjust the jetting. If your motorcycle is fuel injected, the fuel return line might be clogged or something is wrong with your injectors. You’d also notice a reduction in gas mileage and power.

What to do when your motorcycle starts smoking?

Warm up the engine then put the piston at the top dead center on the compression stroke so both valves are closed. Pump air into the cylinder through the spark-plug hole and measure the leak down with the attached gauge.

Why do I have gray smoke coming from my exhaust?

Check and clean the air cleaner which may have become clogged, causing gray smoke. The air cleaner may also have worked itself loose, in which case a new one will need to be fitted.

What to do if you have blue smoke in your exhaust?

Inspect the piston ring and valve seals to ensure they are air-tight. If you are unsure how to do this and your user’s manual does not provide instructions, seek professional assistance. Failure of these seals results in burning oil, hence a blue smoke, and the seals should be replaced immediately. Check the ambient air temperature.

How to fix black smoke in dirt bike?

How to Fix Black smoke in Dirt bike? 1 Step 1: Air Filters Sometimes blockage in the Air filter leads to stop reaching the sufficient in your bike’s engine and… 2 Step 2: Piston Rings Your bikes piston rings should be inspected and ensure that it is good in condition. The work of… 3 Step 3: Fuel Additives More

Why does my motorcycle have white smoke coming from the exhaust?

Check the ambient air temperature. If it is below 50 degrees Fahrenheit, then white smoke is perfectly normal until the engine warms up. If it continues after the engine is warm, then there is a source of excess water somewhere in the engine.

Inspect the piston ring and valve seals to ensure they are air-tight. If you are unsure how to do this and your user’s manual does not provide instructions, seek professional assistance. Failure of these seals results in burning oil, hence a blue smoke, and the seals should be replaced immediately. Check the ambient air temperature.

Why do I have smoke coming out of my engine?

If it continues after the engine is warm, then there is a source of excess water somewhere in the engine. Check if there is too much oil in the oil reservoir and, if so, drain the excess oil and see if the exhaust continues to smoke. This is the most obvious cause of smoke when the engine burns oil.