I've tried almost everything and still trying to solve the issue.
The bike has flies out for two years now with no problem but recently it started to stumble at 1500 rpm. The stumble goes away when I used a fuel injector cleaner( assumption -made the fuel run richer therefore making up for a leak in throttle body)
I tested the fuel flow, subthrottle , main throttle sensors, engine compression and placed new air filter, spark plugs.
I also removed the throttle bodies and cleaned the pilot air screw, dust seals( seals around the injectors had sand and gunk so there is suspicion of an air leak).
I will continue my test by measuring the fuel pressure and injector spray pattern. At this point I am not sure were the problem is coming from there are no fi error messages to point me in the right direction I wonder if the ECU has glitched or i just need new injectors.
I hope someone can help!
Thanks in advance,
Will -desperate to have a smooth ride again
* Last updated by: erickstrom on 5/12/2009 @ 7:34 PM *