One thing I forgot (at least, one....;)  One of the
times I took the fridge out was to install the
GoWesty air pump modification.  Three pieces--an
O-ring that helps seal inside the air piston, a
bigger outlet hole and a one-way valve so no air
can be sucked back.

It makes a big difference.  I used to pump 100 times
before lighting--really!  Now, I think 10 times is
the same.

I don't know when Westys started having this mod
installed; mine is an '87.  Also, I don't think you
can tell without removing the fridge--although maybe
by removing the side grill and looking in at the
top, back of the fridge for the presence or absence
of the one-way valve.

I thought the kit was pricey--$18.95--but now highly
recommend it as worthwhile.
http://www.gowesty.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=055-131-101K&Category_Code=cp-ce-lpg
If that link get folded or broken, go to
http://www.gowesty.com/Merchant2/merchant.mv?Screen=SRCH&Store_Code=gw
and enter "check" and you'll get there.  182b Fridge Check Valve
Update Kit.

                                Richard A Jones
                                Boulder, Colorado