Well DD, it only took all evening to get this electronic bucket of bolts functioning again. Sheesh!
Ok then. I know how difficult it is to get the carb stack on and off
the 1000, but what can I say?
1. Remove the carb stack
2. Turn the carbs upside down and set the float heights. Reinstall
float bowls.
3. Slowly turn the fuel pilot needle (on the bottom of the carb/float bowl)
in until you feel it lightly seat. Turn it out 1 1/4 turns.
4. Turn the airscrew in until it seats. Turn it out 1 3/4 turns
5. Turn the idle adjustment knob (between 2 and 3 cylinders) out until
it no longer makes contact with the throttle linkage.
6. Remove the throttle return spring from the carb linkage.
7. On the top of the slide in each carb, there is a brass adjustment
screw with a jamb nut. Loosen the jamb nut and turn each adjuster screw
lightly all the way down. Back it off two turns. Finger tighten the
jamb nuts to hold that setting.
Close the throttle linkage using your finger and hold down the linkage
lightly in the closed position (slides down) Take the shank of a 9/64"
drill bit and insert it between the skirt of the slide and the bottom of
each carb throat on the airbox side. If you find a slide skirt that is
too low to allow the 9/64" bit between the skirt and carb body, turn the
idle adjustment knob in until that lowest slide raises enough to barely
allow the drill bit to be inserted when the throttle linkage is held in
the full down position.
This will be considered the control/baseline carb.
Once you have a carb set to the 9/64" baseline, do not turn/touch the
idle adjustment knob again. On the remaining three carbs, Use the
brass adjuster on top of each slide to set the slide to 9/64" clearance
when the throttle linkage is held in the closed position. Finger tight
the jamb nut to hold the setting. When you have finished this part, all
slides should have a 9/64" opening between the skirt and the carb body
when the throttle is held closed. When this is correct, turn the idle
adjustment knob in about three turns. (you should be able to see all
four slides slightly raise in unison when you do this)
8. Reinstall the return spring.
9. Install the carbs on the bike
10. Leave a slight amount of slack in the choke and throttle cables
once installed Check that when the choke is off, the choke arms on the
carbs are fully seated/off and that the throttle grip when closed allows
the linkage to return to fully closed.
11. Remove the vacuum plugs on the underside of the carb intake between
the carb and cylinder head and install the 4 mm adapters for the vacuum
lines for the mercury carb stix/vacuum guages.
12. If using the bikes fuel tank as a fuel supply (I do, I just use
long fuel and vacuum lines so I can sit it on a stool beside the bike),
be sure to install the vacuum line to operate the petcock. If using a
small test tank and gravity feed, then plug the vacuum line on the carb
that normally would be connected to the petcock.
13. Start the bike and set the idle adjustment knob so that the idle
rpm is 1200. ( it make take a few minutes for it to warm up enough to
hold a 1200 rpm level)
14. At 1200 rpm, you want the vacuum on each carb to be 8 inches of
mercury. Turning the brass adjusters on top of each carb in will lower
the slide and increase vacuum on that carb. Turning adjuster out will
decrease vacuum. Adjustments are usual made in small amounts and I
usually adjust the carb that is the farthest out of synch. There is no
particular sequential order. You want to get all carbs at the same
vacuum level first. With each adjustment, rpm may climb or fall.
Between each adjustment, reset the idle adjustment knob to always
maintain 1200 rpm.
Once all carbs are drawing the same vacuum , lower or raise the vacuum
level bit by bit across the board until all carbs are drawing 8 inches
@1200 rpm. Holding the slotted adjusters on top of the slides from
turning with a
screwdriver, gently snug the jamb nuts down to hold the adjustment
(probably about 6 ounces of torque is all that is needed on the adjuster
jamb nuts.......they will strip easily....careful!
)
That should do it.
Earl
