Adjusting multiple vertical carburetors

"What is the correct procedure

"What is the correct procedure for adjusting multiple vertical carburetors, i.e. top first, etc.
Bill Smith"

"Bill, it would help if one st

"Bill, it would help if one states exactly what engine one is speaking of.

(Carburetor Adjustment - Single S/S Adjustable Needle Valve)
(J. Reeves)

Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.

Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.

Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting.

Note 1: As a final double check setting of the slow speed valve(s), if the engine has more than one carburetor, do not attempt to gradually adjust all of the valves/carburetors at the same time. Do one at a time until you hit the above response (die out or spit back), then go on to the next valve/carburetor. It may be necessary to back out "all" of the slow speed adjustable needle valves 1/8 turn before doing this final adjustment due to the fact that one of the valves might be initially set ever so slightly lean.

Note 2: If the engine should be a three (3) cylinder engine with three (3) carburetors, starrt the adjustment sequence with the center carburtetor.

When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.

When time permits, visit my eBay store at: http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"

It's a Evinrude 70HP.

W

It's a Evinrude 70HP.

Would this also apply to a Chrysler 70HP Model 707HA
Bill

adjusting low speed mixture?..

adjusting low speed mixture?..or..synchronizing
carbs?..what year 70?......yes joes info above applies to the chrysler.

"The Evinrude is a 1973 and th

"The Evinrude is a 1973 and the Chrysler is a 1970.
Thanks,
Bill Smith"