depends on where yer from!! southern CA maybe not so important, cold climate it helps - Fentons or the like have their own ways to deal w/ preheating - don't know that it's replaceable, but you'd have to take off the manifold at any rate, and the main problem would be tryin to find one seperate from a manifold - the way to loosen'em up is kerosine, according to the shop manual

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot