new to site problem with 06 la110

Hey Charlie, welcome aboard!

First off, by "cloud of smoke" do you mean just a sudden puff of it and then it stops smoking....or does it start smoking and continue smoking until you shut it down?

If simply a momentary puff, can you think of anything at all when you see the cloud of smoke? For example, a truck or automobile will often throw a puff of smoke when shifting gears with a manual transmission. While this has nothing to do directly with the tranny, the sudden load off the engine and sometimes increase in rpm (dependent on how quickly or not so quickly one let off throttle) may throw some smoke. I have seen lawn-tractors and walk behind mowers both throw a puff of smoke when a collection or clumping of clipped wet grass unlodges!

Don't know if that reads well but my point is, when a sudden load is removed from engine allowing rpm to increase, it seems as if some unburned fuel may suddenly ignite with increased rpms.

I'm just trying to brain storm here......:hide:

Sounds like a designed pollution control with the fuel pump sucking vapors from the gas tank and the crankcase and sending them to the carb to be burned up in the engine. ...if it has a crankcase filter/breather it could be dirty causing a vacuum in the crankcase which sends the crankcase vapors to the carburetor to get burned or sent passed the rings to be burned in the combustion chamber. .....

Thinking about it if the rings are worn or broke you could be pressurizing your crankcase forcing oil and or vapors to the combustion chamber and carb.... but you say it doesn't happen all the time so I doubt worn or broken rings are the problem.

thanks

thanks again, this weekend I'am going to check out machine again . right now I'am dealing with snow , sullivan cty ny. but this problem is important to me. It's a weird problem you could run machine right now for two hours and it might not act up at all,when it runs it runs like brand new.when it does smoke believe me it's abig cloud of smoke but then goes away.Like i said no weird noises. - Thanks again any idea's help

yes....thanks! It is nice to have closure on a problem and it may help someone else down the road by letting us know what you found.
BTW ,I've noticed we havent had any posts by Tackit in awhile. I just checked his profile and it shows he hasn't even checked in here in 2 months...I hope he's Ok.