How to check the EFI system on a Polaris ATV?
In the right hands, an EFI system can be checked and diagnosed with a fuel pressure gauge, a multimeter, a factory manual, and access to forums such as this one for the special tool workarounds. In fact, most of this information is right out of the factory manuals for a 2006 700 Twin Cylinder EFI and a 2007 500 EFI.
Where is the ECU located on a Polaris ATV?
DC/CDI systems have the ability to ignite with as little as 6 volts of power. Engine Control Unit (ECU) – Located against the frame directly below the headlight pod. The ECU is the brain of the entire EFI system and requires a minimum of 7.0 volts to operate.
How does electric fuel pump work on Polaris ATV?
An in-tank electric fuel pump is used to move fuel from the tank through the fuel line and in-line fuel filter. The in-tank fuel pressure regulator maintains a constant system operating pressure and returns any excess fuel to the tank. At the engine, fuel is fed through the fuel rail and into the injectors, which protrude into the intake ports.
How can I tell if my EFI system is working?
Hopefully this helps take the mystery out of how EFI operates. In the right hands, an EFI system can be checked and diagnosed with a fuel pressure gauge, a multimeter, a factory manual, and access to forums such as this one for the special tool workarounds.
What causes fuel injection problems on a Polaris ATV?
In fact, most of this information is right out of the factory manuals for a 2006 700 Twin Cylinder EFI and a 2007 500 EFI. First and only quote from the manual: “80% of all EFI problems are caused by wiring harness connections.”
Where is the fuel filter on a Polaris ATV?
Fuel Filter – Located behind the frame member that is just aft of the radiator cap. A cylinder about 4 inches long and 2 inches in diameter with quick-disconnect receptacles on each end. Fuel passes through the 10-micron element inside.
What kind of fuel filter does Polaris Sportsman use?
Fuel Filter by Quantum Fuel Systems®. Replacement fuel pumps, modules, assemblies, and kit components are designed to meet or exceed OEM specifications, and feature upgrades that improve on the OEM design. Upgraded polymers, brushes,… Universal Spring Seat Plate by Mikuni®.
What kind of fuel pump does sportsman 700 have?
First of all, a shout out to cwlongshot for proofreading this post. This thread is on the removal, disassembly, and servicing of the individual components of the fuel pump assembly on a 2006 Sportsman 700 EFI.
Can You sponsor a Polaris fuel pump installation?
Full sponsorship available for customer that would do an installation video or installation thread on any motorcycle forums. Contact us for details.
How to remove gas tank from sportsman 700?
Remove the gas tank from the machine lifting upward and backward. — Siphoning the gas out beforehand makes it a bit easier to handle and lessens the chance of spilling gas.