White smoke coming out of air intake

You should notice wires coming from a plug mounted on the outside of the box connected to the air filter. The white smoke is probably fuel vapor leaking out when you shut it down. The intake manifold on these bikes is just made of rubber and the carb hangs off of it. Vibration and dry rot take their toll.

I shut it down, and as it slows down it starts puffing much whiter. Like puffs of white smoke. If I pull the starter cord slowly it puffs out the intake and exhaust, white smoke. Any Suggestions on what it might be?

The smoke coming back through the carburetor throat is caused by a poor intake valve seal. The poor seal allows gases from the combustion chamber to push past the valve on the compression stroke and presents as you described. The reason(s) for the poor seal is normally correctable with a couple of tools.

These parts take the role of distribution the combustion mixture, along with the coolant to the separated intake port. I looked near my air cleaner to see white smoke coming from the housing of the cleaner, with a really rich fuel smell. Removed the air cleaner to see smoke sitting inside the air intake manifold. I let it air out , put air cleaner back on and tried to start it, and started just fine.

Now the when it heats up there is white smoke coming out of the engine ie air intake and oil fill cap. I should have known something would happen. The other day I switched from Craftsman 30wt oil to Pennzoil YB 10W-40. It seems to run great. Without those two you dont get the boom, hence the smoke.

Even a burnt valve may cause a backfire, but not smoke through the intake. A faint whiff and occasional wisp of oil smoke with the AC blower on low will generally indicate a minor oil leak in the engine compartment. A visible stream of constant smoke tells you that the source is very near the blower or the air intake , or is inside the duct itself.

By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. Now this isn’t always the case, but after some trouble shooting we’re usually the go-to shop when diesel drivers need refurbishe rebuilt, or new injectors. Pulled her out , started her up, put it in gear and moved about feet when bike died.

Tried to start back up, but it would start for a second then die. Engine turns over but wont start. White smoke is blowing from air intake with a bang. The white smoke and oil in the throttle body does not sound good.

These tests can let you know where you stand. A “brand new” transmission should be very apparent by a quick look as it should be super clean. Some people also consider a 150k miles used transmission or engine to be “brand new”. I turned the bike off then restarted it and after a couple of minutes white smoke started coming out of the air intake area again.

I recommend checking the oil level. This causes white smoke. If the oil were over fille it would cause the engine to smoke. Once you have the oil level set to the proper level check the air filter.

If the engine was over filled with oil, it could have soaked the paper air filter with oil.