Carburetor Tuning
Jim Boone <[email protected]>
| Newsgroups | gmane.recreation.cars.sevens |
|---|---|
| Message-ID | <[email protected]> |
While doing some other maintenance on the Seven, I noticed the header
tubes on number 3 and 4 where glowing red while the tubes for 1 and 2
were not. It appears something is amiss and I have no idea what. I
suspect this is a long standing issue but am not sure.
Does anyone have any advice on where I should start?
Symptoms:
Engine pops/spits sometime at about 3500 rpm. Seems to always be #3 or #4
#3 and #4 header tubes glow red
(I suspect 3/4 are running much leaner than 1/2)
Engine:
Crossflow with a Kent 244 cam
Carbs 40DCOE -151
Main
Air 210
Emulsion Tube F16
Jet 120
Idle 45F9
Choke Tube 32
Aux Venturi 45
Pump Jet 45
--
Jim
www.unibrain.org
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