Hey all,

Working on a 2010 800EFI. When you put the bike in reverse and apply fuel, it stalls. Hold the reverse over ride button in, no problems. Also, the speedo is jumping around a little bit, and if I un plug it, the reverse issue goes away. Any thoughts guys?

 

Kinda what it's supposed to do is limit rpm until you hold the over ride button down and then you have full power in reverse,but shouldn't stall unless you give it a lot of throttle. When you disconnect the speedo harness you're defeating the reverse limiter that's built into it. Could be as simple as cleaning the left control connectors,adding some electrical grease,plus make sure the gear position indicator is correctly showing on the speedo. This signal comes from the gear position switch on the transmission. Some people have just by passed having to use the over ride button,but I'm not to crazy on some of the mods people have done,but that's just me.




"Reverse Over Ride Mod"

"Polaris has incorporated a safety feature on all their 4wd models. This feature, which is operational all the time when reverse is selected, will limited engine power and cut out the front wheel drive unless you push the "override" button.

One of the main reasons you would want to do this mod is because when you get stuck and the only way out is reverse, it is impossible to pull the ATV backwards while applying throttle AND pushing the override button. It is also very helpful when you use your ATV to plow and need 4wd every time you back up with the weight of the plow hanging off the front.

This mod will give you 4wd and full power when in reverse without having to push the override button. This is for all Polaris Sportsman models with the new style Speedo (2003) and Sp700, 02. Continue down below for pre 03 model instructions.

The problem with the new style, is that the function button for the Speedo is combined with the override button and it is not as straight forward as the old style Speedo. Doing it this way everything works as it should exactly the way it did before the mod.

The nicest thing about this mod is that you do not need to cut any wires or drill any holes.

You will need to purchase a standard 4 pin, 12v relay, 4 pieces of 16 gauge wire about 8" long, 4 female crimp on spade connectors (for connection of wires to relay), and 4 wire splice connectors. (they are usually blue and you simply insert the wires and squeeze with pliers, then fold back the protective locking cover)

Open the pod and locate the wiring harness coming from the Speedo.

Relay terminal #30 connect to Polaris brown wire
Relay terminal #87 connect to Polaris wire gray/orange
Relay terminal #86 connect to Polaris wire red/white
Relay terminal #85 connect to Polaris wire purple.

Use dielectric grease at all electrical connections to prevent corrosion in the long run or even better, liquid tape.

To test, simply put it in reverse with the engine running, if the Speedo flashes the word "SLOW" (just like it did before the mod, when you pressed the override button) you did everything correct"

 

Gotcha. But, when in reverse without pressing the override button, rpm doesn't even go to 1500 and then stalls. Its not even getting to the rev limiter. Now, with the speedo jumping around, could this be the Hall Effect sensor?

 

Any thing is possible with electronics,but if the speed indicator works fine in forward I wouldn't think the sensor on the wheel would be a problem. Item 11. Dirt Cheap Yamaha, Honda, Arctic Cat & Polaris OEM Parts & Accessories – Cycle Parts Warehouse

 

It was the Hall Effect Sensor. The bike was "thinking" it was going to fast in reverse, and stalling out. Working perfect now.

 

Strange.