Since buying it earlier this year, the starter on my 87 Westy hesitates
when I turn turn the ignition to start.  There's an initial 'umph' --
starter gives kind of a push, then it stops for 1/4 to 1/2 a second before
it starts again and, this time, carries on to start the engine.  Have I got
a bad connection and, if so, where might it be?  I've heard of installing a
relay somewhere in the starter circuit -- would that help?  What kind of
relay do I need and where in the circuit would it go?

Thanks for any pointers,

Rick