Help thread: KTM Duke 690 main relay clicks but injector power is missing

For KTM Duke 690 main relay clicks but injector power is missing, make the stock setup healthy before tuning anything. Compression, valve clearance, air filter, plug color, chain/CVT condition and tire pressure all matter before chasing power.

If this involves road testing, keep it legal and safe. A quiet car park teaches more than a panic run down a public road. That is how I would approach KTM Duke 690 main relay clicks but injector power is missing before spending money.

Would you test KTM Duke 690 main relay clicks but injector power is missing cold first, or wait until the symptom appears hot? Mine changes after about twenty minutes.

Thomas Spagnoli: workshop approach for KTM Duke 690 main relay clicks but injector power is missing

Before buying anything for KTM Duke 690 main relay clicks but injector power is missing, I would build a small test path. The cheapest repair is often the one where you do not replace a good part.

1. Make the motorcycle mechanically healthy first: compression, valve clearance, plug, filter, fuel delivery, chain/CVT and brakes.
2. Choose changes that match the use case. City scooter, commuter, trail bike and highway bike need different compromises.
3. Confirm legal and insurance rules before derestriction, ECU work, exhaust changes or power kits.
4. Change one thing at a time and keep the original parts until the result is proven reliable.

The best next step is the one that can prove something. A test that only creates another guess is just a more expensive guess.

This is also the kind of method I teach in the free Motorcycle Mechanics Course here on the platform: observe, measure, confirm, repair, then test again. It is much easier to solve KTM Duke 690 main relay clicks but injector power is missing when the process is clear.

If you report back, include the measured values, not only whether it felt better. Numbers make the thread useful for the next rider too.

I have enough to work with now. No heroic parts cannon today, just tests, notes, and hopefully fewer dramatic noises. I like that this turned into a checklist instead of a guessing contest.