Where is the smoke on off switch

[shieldwolf]

I'm trying to find it and I've looked everywhere. The train says it has it. It came with the smoke oil and direction on how to do it but I can't for the life of me find it. I have the White Pass and Yukon model

[Mik]

behind the smokebox door

[Sleeping Bear]

  Like Mik said, behind the smoke box door. On the front of the loco's boiler is a door with a little latch. its in there......Later and Merry Christmas all......S.B.