Hi all,
My KX100 goes really hard after start up and for about 5 - 7 minutes, then (when its warm) goes off the boil - will not get back on song and bogs down like its running out of fuel. All I can do limp back to base. What is going on? I changed the plug - it made no difference - same fault. At first i thought it may be an air lock in the fuel dilery - maybe the tank was not vented to atmosphere - so I ran it with the cap off - still no go - wait for it to cool down - whammo - flying superbly - again soon as its warm - bog down time?