Fuel injector leak & replacement

["Matt Martinsen" <mattmartinsen@hotmail.com>]

While replacing spark plugs today I took a look into the head to look 
for gas from leaky injectors.  I have a slightly longer than normal 
crank, sometimes with a wiff of smoke at start up which disappears 
within 20-30 seconds.  The pistons tops were all dry except #4 which had 
a small puddle, the culprit is found.  My question is is there anything 
inherently wrong with replacing only one injector?
thanks
-Matt Martinsen
'86 5KTQ
Seattle, WA
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