3B-36 - FUEL SYSTEMS 90-824052R3 JUNE 2002
ENRICHENER VALVE TEST
Push key (or choke button) in.
Valve should click
No Click
Check for battery voltage to yellow/black
wire at terminal block on engine when key
(or choke button) is pushed in
Click
Squeeze primer bulb until bulb is firm.
Remove hose from fitting on bottom of
enrichener valve. Place a container
under valve, then push key (or choke
button). Check for fuel flow from fitting.
Battery Voltage Indicated
Check for loose or corroded connection between yellow/black
wire and black wire (under same screw at terminal block).
Check that other black wire at terminal block is properly
grounded.
Repair connection(s) as necessary, then push key (or choke
button) in. If enrichment valve DOES NOT click, replace valve.
No Voltage Indicated
Check for open in yellow/black wire be-
tween key switch (or choke button) and ter-
minal block.
Fuel Flow from Fitting
Valve is O.K. Check hoses and fittings from
valve to middle and bottom carburetors for
leads or obstructions.
No Fuel Flow from Fitting
Remove hose from top carburetor at valve. If
fuel flows from hose, replace valve. If not,
check hose and fitting for leaks or obstructions.
ENRICHENER VALVE REPLACEMENT
1. Disconnect enrichener valve leads at terminal
block.
2. Disconnect hoses from valve.
3. Remove bolt that secures valve mounting
bracket to engine, then lift valve from engine.
4. Reinstall hoses to valve.
5. Apply a drop of Loctite 271 (92-809820) to
threads of mounting bracket retaining bolt, then
secure valve to engine with bracket and bolt.
6. Ground black (valve) lead by inserting terminal
block retaining screw thru lead end and terminal
block, and then securing to engine using screw.
7. Connect yellow/black lead (from engine harness)
to yellow/black valve lead by inserting screw thru
lead ends, and securing to terminal block using
screw.
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