98 Yamaha SZR 660 discussion forum: Loosing power when running
Title
Loosing power when running 
Entered by
Egil Nilsson 
Date
2010-05-18 12:29:54 
When running and letting go of revs I sometime loose all power. It happens especially when stepping down gear in low speeds. It is like the engine does not get any fuel. I have to wait for several seconds before being able to rev again. Choking the engine helps. Also when accelerating fast up to 7000 revs the engine will work bad in the end. I am not able to pass 120 km/h. Inbetween these speeds then engine is working fine. There are no problems when standing still or starting. Any having a clue? 
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