Issue link: http://trailridermagazine.uberflip.com/i/1545615
Se ng the TPS and powervalve Se ng the TPS and powervalve Registering the ERM and downloading the map Registering the ERM and downloading the map July 2026 29 and a few days later, I dove down another rabbit hole of learning somewhat unfamiliar technology, as the TSP ERM is quite different from any other tuning tool I've ever worked with. What's a TSP ERM, you ask? Well, I'll do my best to explain in the simplest of terms. The TSP ERM is a module that lets you download maps from TSP in Australia and upload them to your stock OEM ECU. Here's how it works: first, connect the module to your PC or laptop, then log into twos- trokeperformance.com and download the ERM Manager program. From there, you create an account with a username and password. The next step is to register the ERM and enter your bike info, such as make, model, and year. TSP has a number of custom maps available to down- load to the ERM. You can choose a map that suits your eleva on, riding style, and other preferenc- es. You are allowed one free map (actually two maps, as you will receive green and white maps to access with your mapping switch). Addi onal maps can be purchased by entering your credit card informa on. Once the ERM is registered and the map of your choice is downloaded, it is connected to the bike via the diagnos c terminal (located behind the headlight on TBI models). At this point, the ERM is powered up; the next step is to connect it to Wi-Fi. At this point, while connected to Wi-Fi, the stock map is copied from the ECU and saved to the ERM, and the TSP map chosen is flashed to the ECU. At this stage, the thro le posi on switch (TPS) voltage is checked with the red and yellow idle speed adjusters backed out. To ensure accu- rate fueling across the en re RPM range, the TPS voltage must be set to 4.0 volts. Luckily, ours was spot on, and the TPS did not need to be adjusted. We then reset the high idle voltage per instruc- ons by turning in the yellow knob. Once voltages are checked and set to specifica ons, the power valve is checked and set electronically. Yes, it might sound complicated, and I'll be honest: ini ally, I was a bit overwhelmed. But a er watching the TSP YouTube videos that explain each step, I found it a rela vely simple and interes ng process. With the new TSP MAP flashed to the ECU, we suited up and hit the trail. The difference in per- formance was drama c. The bike now runs crisp and clean from idle on up with no ceably more low-end grunt. As for the two different maps, I've never been one to no ce much of a difference with map switch posi ons on 2 strokes. With the TSP map installed, the difference between the white (so ) and green (aggressive) map is immediately apparent, with a dras c difference between the two when twisted. I'd also like to men on that, as with the GET ECU, the TSP ERM is also fully tunable via individual cells across the en re RPM range and thro le posi on openings. Addi onal diagnos c features included with the TSP ERM are the ability to read and clear codes, test-run the fuel pump, check for spark without turning the engine over, fire the injectors and inspect the spray pa ern, prime the oil injec on pump, and reset the elec- tronically actuated powervalve.