P40 Dominator Remote Flush Guide

How to plumb and wire the Dominator Remote Flush/Start/Stop kit on a P40 with a Cyclone 3-port proportioner. The kit replaces the yellow 3-way flush valve shown on the gas softwash plumbing diagram so you can flush the Cyclone SH valve from the remote. Shop the kit.

WarningIf you have no electrical experience, do not install this remote system — see a professional. Do not open the control box for any reason unless instructed; opening the control box voids the warranty and Dominator Fabrication will not help. This guide is for professional installers familiar with gas softwash equipment.
Engines coveredElectric-start Honda GX160, GX200, and GX390. CRX engines use the same wiring as the GX160/200; for CRX 225, follow the GX160/200 instructions. Remote restart requires electric start.

1. Plumbing with a Cyclone

Supplies flow from the tanks toward the pump. Use two dedicated water hoses and one bleach hose — never tee those feeds together. Soap to the Cyclone soap valve must pass through the bottom solenoid on the flush bracket.

Numbered Cyclone plumbing connection map for the Dominator Remote Flush kit

Connection map — numbered hoses match the port photo below. Blue = water, yellow = SH/bleach, pink = soap.

Dominator flush kit ports numbered to match the connection map

Flush kit ports: 2 TeeJet Water (right), 3 TeeJet Chem (left), 4 Common to Cyclone SH, 5 soap solenoid.

Cyclone 3-port proportioner port key

Cyclone: ① into H2O valve, ⑤ into SOAP valve, ④ into SH valve, ⑥ mix out to the P40.

Hose connections

# Connection Notes
1 Water tank → Cyclone H2O valve Dedicated 1" hose. Do not tee into the TeeJet water line.
2 Water tank → TeeJet RIGHT (Water) Dedicated 1" flush-water hose to the water tank. Use a Uniseal — do not use a bulkhead.
3 SH / bleach tank → TeeJet LEFT (Chem) Dedicated 1" hose. Use a Uniseal — do not use a bulkhead.
4 TeeJet COMMON (center) → Cyclone SH valve 1" hose. This is the path the remote flushes.
5 Soap tank → bottom soap solenoid → Cyclone soap valve 1/4" lines. Left side of the solenoid to the soap tank; right side to the Cyclone soap valve.
6 Cyclone mix outlet → P40 inlet Same as the gas softwash plumbing diagram. Pump outlet / bypass unchanged.
Do not tee waterThe Cyclone water valve and the TeeJet Water port each get their own hose back to the water tank.

2. Kit port labels (no proportioner)

If you are not using a proportioner, only these labeled kit ports are confirmed:

  • TeeJet LEFT (Chem) — to the chemical / SH tank
  • TeeJet RIGHT (Water) — to the water tank
  • TeeJet COMMON (center) — labeled “To SH Valve”
  • Soap solenoid — labeled “To Soap” (1/4")

How the common and soap lines join a P40 with no proportioner is not covered in the Flush install steps — do not guess that routing from this guide.

3. Remote buttons

Button Function
1 Chemical / Flush toggle (TeeJet + soap solenoid). The system defaults to Flush / water. Press Button 1 to draw chemical; press it again to return to Flush — TeeJet back to water and soap supply shut off. If the remote fails or is lost, power-cycle the control box to return to water/Flush so you can rinse.
2 Start engine. Press once to start; press again once the engine has started.
3 Stop engine. Press once to shut down. Press once more to turn off the kill feature so you can start again.
If the starter only cranks about one secondThe kill circuit is still active. Press Button 3, then Button 2 to start. After a normal stop: press 3 to kill, press 3 again to clear the kill, then press 2 to start.

4. Engine wiring (GX160 / GX200 / GX390 / CRX)

Disconnect the battery before installation. Mount the receiver base upright in a secure location protected from direct spray and excessive heat.

Wire Connection
Red or Orange Battery positive (+) terminal or the positive side of the starter solenoid (power)
Black Engine block ground (we typically use the Phillips screw on the top left of the starter solenoid; recommended: the bolt holding the starter to the block)
White Same ground circuit as the black wire
Green Disconnect the bullet connector on the black wire with white stripe, then connect the green wire’s bullet connectors into each side (start)
Yellow Disconnect the yellow wire bullet connector coming from the engine block; the yellow wire from the remote plugs into it (stop / kill)

Quick reference: Red = power · Black = ground · Green = start · Yellow = stop.

Example Honda engine remote harness connections

Example engine harness connections from the install instructions.

Honda GX160/200/390 engine harness

Honda GX160 / GX200 / GX390 engine harness.

5. Safety & care

  • Verify all connections before reconnecting power.
  • Use proper wire management to prevent chafing or heat damage.
  • Do not mount components near exhaust or high-heat engine parts.
  • This system is not designed for direct pressure washing or full submersion.
  • Inspect wiring periodically; keep the receiver clean and dry; replace the remote battery as needed.
  • Pairing is not required — the remote ships pre-paired unless we instruct otherwise.

6. Quick troubleshooting

  • Engine will not start: Battery at least 12.0V; check the green and yellow connections; confirm a solid ground.
  • Starter cranks about one second: Kill circuit still active — press 3, then 2.
  • Engine will not stop: Recheck the yellow stop/kill connection at the engine’s yellow bullet connector, confirm the black and white ground connections are solid, and confirm Button 3 works.
  • Valve not switching: Confirm the TeeJet wiring color match; confirm Button 1 operation.
  • Remote not responding: Replace the remote battery; re-pair only if we instruct you to.

Do not open the control box to troubleshoot — contact the dealer you purchased from for technical or warranty support.