<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2800.1170" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial size=2><SPAN class=238374723-29062003>I've been running
15% Cool Power all Synth in my Webra 1.45 (original carb) mounted in my Focus.
Information received from this discussion group helped me tune through a rich
midthrottle {lowered pump pressure 1/2 turn and lengthened pipe an inch). Been
running great through the last week (took some days off to tune and
practice).</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=238374723-29062003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=238374723-29062003>First flight
yesterday, she goes real rich on takeoff then flames out before I can get it
back around. Ground tests showed I could keep it running through mid & full
throttle only if I leaned the high end mixture to max rpm-- why too
hot.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=238374723-29062003></SPAN></FONT> </DIV>
<DIV><FONT><SPAN class=238374723-29062003><FONT face=Arial size=2>What had
changed?? I had been running it on 15% Cool Power, ran out of that. Found
some 20% Cool Power 4 stroke in the garage, and had put that in the can. Figured
it would work OK with a retune, and had done that before the
fateful takeoff. Guess that decision wasn't so good.</FONT>
<DIV><SPAN class=228510003-29062003></SPAN> </DIV>
<DIV><SPAN class=228510003-29062003><FONT face=Arial><FONT size=2>I found a
gallon of Magnum #1. Drained the tank of the 20% 4 stroke and refilled
with the #1. Cranked it back up. Ran like a top, great transition throughout the
range. Able to richen up without problem.<SPAN class=238374723-29062003> Flew
today and it ran great.</SPAN></FONT></FONT></SPAN></DIV>
<DIV><SPAN class=228510003-29062003><FONT face=Arial><FONT size=2><SPAN
class=238374723-29062003></SPAN></FONT></FONT></SPAN> </DIV>
<DIV><SPAN class=228510003-29062003><FONT face=Arial><FONT size=2><SPAN
class=238374723-29062003>If the symptoms sound familiar, try something like 15%
all synth or Magnum #1.</SPAN></FONT></FONT></SPAN></DIV>
<DIV><SPAN class=228510003-29062003><FONT face=Arial><FONT size=2><SPAN
class=238374723-29062003></SPAN></FONT></FONT></SPAN> </DIV>
<DIV><SPAN class=228510003-29062003><FONT face=Arial><FONT size=2><SPAN
class=238374723-29062003></SPAN></FONT></FONT></SPAN> </DIV></SPAN></FONT></DIV></BODY></HTML>