Sparkplugs and crush washers

[bradleyheathhay]

Just put a new plug in then had to take it out to rotate the engine to measure valve clearance, which has got me wondering about the crush washers on spark plugs. Do you have to get a new crush washer to re-insert the same plug? What's the torque procedure for a plug in an ATV engine, snug plus a quarter turn?

[honda400ex2003]

i have never put new crush washers in it. after the initial seat of snug + 1/4, i just tighten them until they are tightened up a sufficient amount.

steve