Increase the max buffer size and the max received message size. e.g
maxBufferSize="1000000" maxReceivedMessageSize="1000000"
A full binding may read
<basicHttpBinding>
<binding name="BasicHttpBinding_MyApplication" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="true" hostNameComparisonMode="StrongWildcard"
maxBufferSize="1000000" maxBufferPoolSize="524288" maxReceivedMessageSize="1000000"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>