kazuma mini falcon 90 losing power after warm up
 

Kazuman Mini Falcon 90...Bought new last December/06 with no problems. Recently, it runs normally for first 15 minutes and then has a really significant power loss. It is almost like the tranny is not engaging or something but also the engine does not rev up as qucikly so I beleive it is engine related. After cooling down for a couple of hours, it runs great for 15 minutes and then same. I have replaced spark plug but that is about the only thing I have ever done except lock tight nuts & bolts. Any suggestions on resolving would be greatly appreciated.[img]i/expressions/face-icon-small-confused.gif[/img]

kazuma mini falcon 90 losing power after warm up
 

start b y taking the carb off and taking it apart and cleaning it out with carb cleaner and blow everthing out with compressed air. if that doesnt work then it might need to have the valves adjusted or the cdi is bad.

kazuma mini falcon 90 losing power after warm up
 

Thanks a lot

I'm not much of a mechanic but not afraid to get my hands dirty. I am curious about the valve adjustment though. If the valves were out of adjustment, would not such a large power loss be all the time and not just after 15 minutes of run time? I would think that a carb problem would not be warm up related either but I will try doing both. I will start with the cli though and see if I get lucky. Thanks agian for you responce. I appreciate it.

kazuma mini falcon 90 losing power after warm up
 

time for a valve adjustment, this takes about 15 minutes and should be done about every 20-25 hours of use,

kazuma mini falcon 90 losing power after warm up
 

Well, I am about ready to try this valve adjustment.
I am giving it a look over and it looks like I have a chance of getting into adjust the valve on the top of the engine but see no way to access the bottom valve without basicly pulling the engine. It is to close to the frame I cant hardly get a finger let alone a guage into. Anyone done this valve adjsutment to the mini Falcon 90 without disasembly?