Help thread: Yamaha XJ6 main relay clicks but injector power is missing
I have been reading about Yamaha XJ6 main relay clicks but injector power is missing and I am not sure which step should come first in a real workshop diagnosis. I am interested in performance, but I want it legal, reliable, and reversible. I do not want a bike that is fast once and expensive forever.
Discussion
5 repliesFor Yamaha XJ6 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.
Do not underestimate old fuel, low battery voltage, or a loose ground. They love pretending to be expensive components. That is how I would approach Yamaha XJ6 main relay clicks but injector power is missing before spending money.
What would be the one tool you would want on the bench before touching Yamaha XJ6 main relay clicks but injector power is missing?
Thomas Spagnoli: workshop approach for Yamaha XJ6 main relay clicks but injector power is missing
My workshop rule for Yamaha XJ6 main relay clicks but injector power is missing is simple: prove the basic condition first, then decide whether the clever part is actually needed.
If the result changes hot versus cold, or under load versus idle, write that down. Those conditions are not noise; they are clues.
If you are new to this, join the free Motorcycle Mechanics Course on the platform. I made it to explain the workshop logic behind cases like Yamaha XJ6 main relay clicks but injector power is missing, not just to list random parts.
Bring one result at a time and the forum can narrow it down properly. That is how a thread becomes a real workshop note.
Update: I am going to start with the measurements instead of ordering parts tonight. My wallet already looks relieved. I will post the exact result, even if the answer ends up being embarrassingly simple.