[NROTOXIN]

Tom,
No "root cause analysis" has really been done here, only internet troubleshooting. What has worked for some does not always work for others. At the same time, these are low cost things to try. Maybe it's not boiling at all and it is something else.......nothing here so far has this been identified 100% fuel boil, only symptoms. Let's treat the symptoms with a couple of low cost parts and then take it from there. YMMV