Bring basil, sugar, peppercorns, salt and water to boil in small saucepan, stirring to dissolve sugar; boil 1 minute. Remove from heat and let cool. Pour syrup through fine sieve into bowl; discard solids.Working over a bowl, cut segments of grapefruits free of membranes. Combine pineapple, kiwi and grapefruit in large bowl; pour syrup and accumulated juices over fruit, and gently toss. Let stand and room temperature, stirring occasionally, for at least 30 minutes and up to 2 hours before serving.