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1. 04:58 PM - syncronize carbs (Leo J. Corbalis)
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| Subject: | syncronize carbs |
--> Engines-List message posted by: "Leo J. Corbalis" <leocorbalis@sbcglobal.net>
Bing carbs at 1-800-309-2464 has the carb sync, imported for (old price) $34.95.
The actual numbers on the scale don't matter. Just get both columns of mercury
real close.
Make 4 storage caps for the gauge by heating one end of a 2 inch piece of plastic
tube andd pinch it shut with pliers. Rub a trace of vaseline on the gauge
tubes to make it easy to get the plastic tubes on and off. DO NOT REMOVE THE
UNUSED TUBES. MERCURY WILL FLY EVERYWHERE IF YOU BUMP THE UNIT !!!
ALWAYS, USING, MOVING and STORING. KEEP IT UP UP UP.
Push the 4 small white ? plastic pieces with the small hole thru them into
each end of the long plastic tubes, about 2 inches. These will help to keep the
mercury where it belongs.
Just remove the screw next to the idle screw. Force the plastic tube over the
brass part. A little spit(that stuff in your mouth)helps. I use a small strips
of duct tape to secure the plastic tubes to whatever. Don't let them touch
the hot exhaust. connect to the 2 middle tubes in the gauge. I also use duct
tape to mount the gauge, make the top strip very narrow because the mercury columns
are very close to the upper tape. You can run the engine up with a front
opening canopy unlatched OK. Side opening is your problem.
I changed my throttle linkage by adding 2 more tubes to the crosstube directly
behind each throttle arm. I used 3/16 trreaded rods to the throttle arm with
ball joints on the ends. I changed the stock full open spring to full length
springs to get lower force on the Vernier throttle knob that I installed on
the left. With the stock springs, barely touch the button on the end of the throttle
and you get to taxi at 5600 rpm. Exciting! I use the left carb as the master
to set the idle. Nasty suprise, the cross tube twists between the new tubes.
The right tube must be longer than the left, depending on how strong the
full open springs are. This is cut and file. test and re test. This is most apparent
at low rpm. At WOT a small angular differience between throttle plates
wil make practically no differience on the mercurry columns.
I hope you find this useful.
Best
Leo Corbalis
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