Short bakground:
Have had problems with the 570 for some time now. It starts fine and idles fine but with the smallest move of the throttle it dies. New responsibilities at work + 9 months year old boy = no time to fix (or ride for that matter)
The story:
Finally got myself together yesterday and started pulling it apart. Had a friends 390 to get replacement parts from trying to zoom in on what the problems was. After
lots of testing I found that with his injector it ran fine.
Searched the web for price of a new injector and found it to be 1400SEK (>200USD) and in the process I found this thread. So today I bought a ultrasonic washer for 700SEK. Cleaned the injector with hot water and some other suitable cleaning agents I had at home. Reassembled the bike with great hopes and imagine my joy when it ran fine. Going for some ice racing this weekend, hope it really is fixed...
Conclusion:
Buying a ultrasonic washer was a good investment