> I just started the mower and it runs on and off with a lot of smoke.
> I did drain off the mower engine oil last winter and refilled that with
> 5w30 after checking up with this newsgroup.
> My guess is that I put in some gas that has been around over 6 months.
> What other option do I have?
> The mower has been in use only for 3 years.

You sure it isn't from the oil-soaked air filter? My Honda engine'd
lawnmower does that. No crankcase oil burned as the level never changes,
but when I take off the air cleaner it stops belching smoke.

B~