Hi Mark
Definately fuel related. Do your best to eliminate all the sources of
fuel restrictions on the ground. My bet is "vapor lock". Insolate you fuel
lines, and route cool air to your gascolater. If you have done that and
still have the problem; bad tank vent location as already mentioned is
another strong possability. Another is your ram air installation ( if it
appears to be air speed related). Ram air can pressurize the floatbowl and
reduce your fuel flow. All three of these fuel flow restrictions have
affected me and my VW powered KR2. A good first step is to verify you have
at least three times your maximum, engine required, fuel flow in nose high
and nose low attitudes. In your case; I would shoot for 15 gallons per hour
"at the carb float bowl" as a minimum. Let us know what you find.
Good luck
Rich Seifert N56SR
----- Original Message -----
From: "Mark Moody" <mmo...@telus.net>
To: <kr...@mylist.net>
Sent: Monday, April 06, 2009 7:39 PM
Subject: KR> Temporary partial loss of power
KRNet I need help in trying to identify a problem. I fly a kr-2s with a 2100
revmaster with a revflow carb and ram air. My airplane has always been very
sensitive to mixture while flying. If I didn't have it set in that magic
spot I may get a slight hiccup. It's never that sensitive on the ground
though as I can do a full static runup (3000 rpm) on the ground while never
missiing a beat while playing with the mixture.
mmo...@telus.net
